Free Essay

Engineering Power Systems

In: Other Topics

Submitted By danit0
Words 760
Pages 4
ELEC
C4612 Po ower Sys stem Ana alysis Midsess sion SOL
LUTION (
(Session 1, 2016) n QUES
STION 1
For the system sho own in Figu 1, comp ure pute the matrix. T system has an off-nominal
The
tap chan nging transformer betw ween buses 1 and 2 wi a tap setting of 1.03 The line b ith 3. between buses 1 and 4 has half line charging sus sceptance o 0.25 pu at each end. There is a mutual of a
.
ng u d own. couplin of 0.15 pu between lines 2-3 and 4-3 as sho

2

t = 1.03

1

3

j0.45

j0.4
4

j0.15 j0.1 j0. 2 j0.3 j0.1
4

Figure 1 on Solutio etween line 2-3 and 4-3 es Mutual coupling be
=

=

0.4 0.15
5
0.15 0.1
0
3 − 2 3 − 4
3 − 2 − 5.7143 8.5714
=
8.5714
3 − 4 8.5714

Buildin block matrix ng Tempor rary values are,
= − 5.7143
=− 2
2.8571
= − 2.8571
= − 11.4286
= 8.5714
= 14
4.2857

= 8.57
714
= 14.2
2857
= − 22
2.8571

Tap changing transformer in line 1-2
1
=
= − 2.222
0.45
.
.
=
= − 2.1575,
=
.
Temporary values are,
= − 2.0947
= 2.1575
= 2.1575
= − 2.2222

(
.

.

)

= 0.0628,

=

.

( .
.

)

= − 0.0647

Line 1-4 with half line charging susceptance of j0.25 at each end
=
= − 3.3333,
= 0.25,
= 0.25
.

The
=−
=
=
=
=−
=
=
=−
=
=−

matrix is therefore,
3.3333 + 0.25 − 2.0947 = − 5.178
= 2.1575
=0
= 3.3333
2.2222 − 5.7143 = − 7.9365
= − 2.8571
= 8.5714
11.4286
= 14.2857
3.3333 + 0.25 − 22.8571 = − 25.9404

5.178
−2.1575
0
−3.3333
−2.1575 7.9365
2.8571
−8.5714
=−
0
2.8571
11.4286 −14.2857
−3.3333 −8.5714 −14.2857 25.9404

QUESTION 2
The matrix of a 3-bus system is given by,
0
13.8675 − 56.31 13.8675123.69
= 13.8675123.69 41.6025 − 56.31 27.7350123.69
0
27.7350123.69 27.7350 − 56.31
Obtain the initial Jacobian matrix of Newton-Raphson method. Bus 1 is a slack bus with V1 =
1.00. Take P2 + jQ2 = -5.96 + j1.46, P3= 6.02 and |V3| = 1.02. Assume a flat start with
V20 = 10 and V30 = 1.020.
Solution





| |
=



| |
∆| |
| |
Page 2 of 4

= 1 (
=|

),
(



|

=|


= 1 (

(

|



(

|



=|

(

|



(

= −|


) + 2|

)+|

+

(





(

|



=|



(

|



+

)−|

=|

|

(



+

)+|





+

|

(

(



)+|

+

|

|

(



)

+

|

−|
|

(



= −13.8675 x 1 x
− 27.735 x 1.02 x

(

|





)

+

)

+

(123.69) = −23.3846

)
(123.69) = 15.6923

= −27.735 x 1 x 1.02 x
= −|

(−56.31)

(123.69) + 27.735 x 1 x 1.02 x

= 13.8675 x 1 x 1 x

| |

)

+

(123.69) = −15.6923






)

+

(

(

(

|

(123.69) = 23.5385

|

|

(123.69) = 35.0769

+|

|

) +|

= −|

= −|

)

+

(123.69) = −23.5385

+

= 27.735 x 1.02 x



)

)

+

= 0 + 27.735 x 1.02 x 1 x

| |

+

(123.69) = 22.7692

= −27.735 x 1.02 x 1 x
=|

|

(123.69) + 2 x 41.6025 x 1 x


|





(123.69) = −23.5385

+

+27.735 x 1.02 x
|

(

(

|

)

+



= 13.8675 x 1 x
=|

+|
|

)

(123.69) + 27.735 x 1 x 1.02 x

= −27.735 x 1 x 1.02 x

| |

|

) +|

+

= 13.8675 x 1 x 1 x
= −|

= 1.02 (

),

)+|

+



+

) − 2|

|

−|

(123.69) − 2 x 41.6025 x 1 x

|

(



+

)

(−56.31)

(123.69) = 34.1539

35.0769 −23.5385 22.7692
[ ] = −23.5385 23.5385 −15.6923
−23.3846 15.6923
34.1539
Page 3 of 4

QUESTION 3
(i)

Which among the following methods are generally used for the calculation of symmetrical faults?
a. Norton theorem
b. Thevnin’s theorem
c. Kirchhoff’s laws
d. Only (b) and (c)
e. All of these

(ii)

Which among the following reactance has a greater value?
a. Sub transient reactance
b. Transient reactance
c. Synchronous reactance
d. All of these
e. None of these

(iii) On which among the following factors does the magnitude of the fault current depend?
a. Total impedance upto the fault.
b. Voltage at the fault point
c. Both (a) and (b)
d. None of these
(iv) In power-system short-circuit studies, for calculating subtransient fault currents, transformers are represented by their (a) leakage reactance, transmission lines by their equivalent (b) series reactance, and synchronous machines by (c) constant voltage behind subtransient reactance.
(v)

The load currents in short-circuit calculations are neglected because, short-circuit currents are (a) many times larger than and (b) out of phase from load currents.

Page 4 of 4

Similar Documents

Premium Essay

Is Vct

...MASTER OF TECHNOLOGY ADVANCED ELECTIVES SELECTION For Semester II 2014/2015 ATA/SE-DIP/TS-11/V1.34 Master of Technology in Software /Knowledge Engineering and Enterprise Business Analytics Table of Contents. MTECH ADVANCED ELECTIVES 1. INTRODUCTION. 1.1 Overview. 1.2 Courses. 1.3 Assessment. 1.4 Elective Selection Process. 2 2 2 2 3 3 2. SCHEDULE FOR ADVANCED ELECTIVES OFFERED DURING SEMESTER II 2014/2015. 2.1 MTech SE and KE Students. 2.2 MTech EBAC Students. 5 5 9 3. CURRICULUM. 12 4. DESCRIPTION OF COURSES. 4.1 Department of Electrical & Computer Engineering. 4.2 School of Computing. 4.3 Institute of Systems Science. 4.4 Department of Industrial & Systems Engineering. 4.5 Division of Engineering & Technology Management. 12 15 23 31 32 34 ATA/SE-DIP/TS-11/V1.34 page 1 of 35 Master of Technology in Software /Knowledge Engineering and Enterprise Business Analytics MASTER OF TECHNOLOGY Advanced Electives 1. INTRODUCTION 1.1 Overview All students that expect to have passed four core courses and eight basic electives after completing the scheduled examinations in November, and also have or expect to pass their project/internship, will be entitled to commence their Advanced Electives in NUS Semester II 2014/2015, which starts on 12 January 2015. However, it should be noted that a student’s registration for the Advanced Electives will be withdrawn if they either: 1. 2. 3. 4. 5. Fail any elective examination in November. Do not successfully...

Words: 15607 - Pages: 63

Premium Essay

Homework

...ISO/IEC 24748 systems and software lifecycle management guide against other standards and academic material, and proposes additions to make to the standard for it to properly promote and support software quality engineering. The article explains the results of a term research project focused on the analysis guide for life cycle management a software quality engineering perspective. 2. What lifecycle stages were primarily focused on that needs to be improved? The lifecycle stages those were primarily focused on and needs to be improved are as listed below: • Concept – In this stage the stakeholder’s requirements trigger the project and drive the whole engineering effort. • Development – In this stage the stakeholder’s requirements are refined with the perspective of quality and are ‘baselined’. • Production – In this stage considering the quality model selected and the baseline accumulated from previous stages quality activities will be performed according to the plans. • Utilization – In this stage, the monitoring of performance and identifying, classifying and reporting of anomalies, deficiencies, and failures occurs. • Support – In this stage, the system-of-interest is deployed and logistics for operation and maintenance support are handled. This stage also considers the support and maintenance quality plan established in previous stages. • Retirement - The Retirement stage is executed to retire the systems-of-interest and eventually transfer its services to a new system, while preserving...

Words: 968 - Pages: 4

Free Essay

Sehandbook

...SYSTEMS ENGINEERING HANDBOOK A GUIDE FOR SYSTEM LIFE CYCLE PROCESSES AND ACTIVITIES INCOSE-TP-2003-002-03 June 2006 INCOSE Systems Engineering Handbook v. 3 SYSTEMS ENGINEERING HANDBOOK A GUIDE FOR SYSTEM LIFE CYCLE PROCESSES AND ACTIVITIES INCOSE-TP-2003-002-03 INCOSE SYSTEMS ENGINEERING HANDBOOK, version 3 June 2006 Edited by: Cecilia Haskins Copyright © 2006 International Council on Systems Engineering, subject to restrictions listed on the inside cover. INCOSE-TP-2003-002-03 June 2006 INCOSE Systems Engineering Handbook v. 3 This INCOSE Technical Product was prepared by the Systems Engineering Handbook Development Team of the International Council on Systems Engineering (INCOSE). It is approved by INCOSE for release as an INCOSE Technical Product. Copyright © 2006 by INCOSE, subject to the following restrictions: Author use: Authors have full rights to use their contributions in a totally unfettered way with credit to this INCOSE Technical Product. Abstraction is permitted with credit to the source. INCOSE use: Permission to reproduce this document and use this document or parts thereof by members of INCOSE and to prepare derivative works from this document for INCOSE use is granted, with attribution to INCOSE and the original author(s) where practical, provided this copyright notice is included with all reproductions and derivative works. Content from ISO/IEC 15288:2002(E) are used by permission, and are not to be reproduced other than...

Words: 63595 - Pages: 255

Free Essay

F35 Joint Strike Program

...this day. The F35 is known as a fifth generation fighter because of its combined engineering efforts and advancements of fighter aircrafts over the past fifty years. The key to air superiority is obviously having the best aviation technology which is why the AIR Force, Navy, and Marines have all participated in the F35 program as well as an International community from the UK, Italy, Norway, Netherlands, Turkey, Canada, Australia, and Denmark. The primary contractor for the F35 program is Lockheed Martin, while Northrup Grumman and BAE systems have also been major contributors to the technology and advancement of the program. As it reads on the JSF website “The focus of the program is affordability -- reducing the development cost, production cost, and cost of ownership of the JSF family of aircraft.” This statement along with defining the F35 program as a system and as a whole will be the main topic of this research paper. A system is defined as a group of elements, components and attributes working together to perform some kind of function. The JSF program as a system has many elements known as Integrated Product teams (IPT) s which work together to perform the end function of producing and maintaining the F35 multi role fighter. The JSF program has 16 components or IPT’S each with their own sub-systems which keep the system operational and sustainable at all times. In October 2001 the system design and development plan began for the F35 program which marked...

Words: 2473 - Pages: 10

Free Essay

Paper

...Description: OGDEN, UT, 84405 Company Introduction: Borsight is a System Engineering, Integration, & Manufacturing Services provider. Our expertise includes mission functionality as well as human factors analysis in defining user requirements by utilizing a disciplined system engineering approach. Borsight provides the following services: Full Spectrum Weapons Systems Integration (Hardware, Software, & Operation Flight Program (OFP)); Full Spectrum Flight Test Support; Configuration Control / Management; Aircraft System Level Integration & Modification; OFP Integration, Development, and Independent Verification & Validation (IV&V); Software & Hardware Modification / Sustainment; Engineering and Technical Services Position Description Performs preventive maintenance, modifications, inspections, and repairs to fixed wing aircraft and/or helicopters, using specialized equipment, in accordance with appropriate federal aviation regulations, manufacturer's recommendations, technical manuals, and/or Government/industry standards. Maintains standard inventory of spare parts necessary to conduct uninterrupted maintenance, modifications, and repairs. Maintains a comprehensive record system of all maintenance work performed on each aircraft to comply with the component mandates of the Federal Aviation Administration (FAA), DoD, and/or the manufacturer. Qualifications Experience: 5-15 years in broad range of aircraft systems installation, modification and maintenance; Able to read and comprehend...

Words: 414 - Pages: 2

Premium Essay

Assignment 1

...software product are the stand alone systems that are produced by a development organization and sold on the open market to any customer who is able to buy them. Examples of this type of product include software for PCs Such as databases, word processors, drawing packages, and project management tools. It also includes vertical applications designed for some specific purpose such as library information systems, accounting systems, or systems for maintaining dental records. Customized (or bespoke) software products are the systems that are commissioned by a particular customer. A software contractor develops the software especially for that customer. Examples of this type of software include control systems for electronic devices, systems written to support a particular business process, and air traffic control systems. An important difference between these types of software is that, in generic products, the organization that develops the software specifications. For custom software products, the specification is usually developed and controlled by the organization that is buying the software. The software developers must work to that specification. However, the distinction between these system product types is becoming increasingly blurred. More and more systems are now being built with a generic product as a base, which is then adapted to suit the requirements of a customer. Enterprise Resource Planning (ERP) systems, such as the SAP system, are the best examples of this...

Words: 2424 - Pages: 10

Free Essay

Dispensers of California

...constructive and innovative ambiance to implement acquired technical knowledge as well as managerial skills to establish myself as an asset to the organization in the field of Automation, Process Instrumentation. Professional Summary • Engineering graduate in Instrumentation working at Hydrogen Manufacturing Unit of World’s Largest Grassroot Refinery, Reliance Jamnagar as Maintenance Engineer, Instrumentation. • Versatile, accomplished engineering management professional with expertise managing maintenance operations in a wide range of Instrumentation Systems and Equipment • Applies continuous improvement principles to increase process and maintenance efficiency. Exhibits a strong and firm approach to sustaining and encouraging safe work environments Career Accomplishments Organization – Reliance Industries Limited, Refinery Division, Jamnagar • Working as a team member for implementation and monitoring of Process Safety Management elements in HMU. • Involved in routine maintenance activities, commissioning and development co-ordination of instruments and control systems in Hydrogen Manufacturing Unit (Oil & Gas Refinery). • Configuring and fault diagnosis of DCS, PLC,Machine condition monitoring systems , Analyzers and Control Loops. o DCS : Invensys Foxboro o PLC : Triconix, Siemens Simatic S7 300,400 and Allen Bradley.. o MCMS: Bently Nevada • Installation, calibration and loop checking of...

Words: 941 - Pages: 4

Premium Essay

Software Engneering

...configuration of data that is required to make these programs operate correctly .A professionally developed software system is often more than a single program. The system usually consists of a number of separate programs and configuration files that are used to set up these programs. It may include system documentation, which describes the structure of the system; user documentation, which explains how to use the system, and web sites for users to download recent product information. Example a word processing system consist of executable program, user manual and the document such as requirements and the design needed to produce the executable program 2. What is the most important difference between generic software product development and custom software development? What might this mean in practice for users of generic software products? a) What is the most important difference between generic software product development and custom software development? Custom software development these are systems that are commissioned by a particular customer. A software contractor develops the software especially for that customer. Examples of this type of software include control systems for electronic devices, systems written to support a particular business process, and air traffic control systems Generic software product development these are stand-alone systems that are produced by a development organization and sold on the open market to any customer who is able to buy them...

Words: 1929 - Pages: 8

Premium Essay

Rabby

...Chapter 11 Building Information Systems and Managing Projects Student Objectives 1. Identify and describe the core problem-solving steps for developing new information systems. 2. Evaluate alternative methods for building information systems. 3. Compare alternative methodologies for modeling and designing systems. 4. Determine how information systems projects should be selected and evaluated. 5. Assess requirements for successfully managing change created by new systems. Chapter Outline 11.1 Problem Solving and Systems Development Defining and Understanding the Problem Developing Alternative Solutions Evaluating and Choosing Solutions Implementing the Solution 11.2 Alternative Systems-Building Approaches Traditional Systems Development Lifecycle Prototyping End-User Development Purchasing Solutions: Application Software Packages and Outsourcing Rapid Application Development for E-Business 11.3 Modeling and Designing Systems Structured Methodologies Object-Oriented Development Computer-Aided Software Engineering (CASE) 11.4 Project Management Project Management Objectives Selecting Projects: Making the Business Case for a New System Managing Project Risk and System-Related Change Managing Projects on a Global Scale 11.5 Hands-on MIS Key Terms The following alphabetical list identifies the key terms discussed in this chapter. The page number for each key term is provided. |Acceptance testing, 376 ...

Words: 9693 - Pages: 39

Free Essay

System Integration and Organization Deployment

...IT426-1302B-02 System Integration and Organization Deployment Academy Carpets Integration Project 06/24/2013 Contents Project Outline 3 Integration Model and Tasks 5 Standards and Regulations 7 Support Strategies 9 Best Practices 11 Cultural Implications 15 References 17 Project Outline The organization I have targeted for this assignment is Academy Carpets. They are a small business located in my hometown of Colorado Springs, Colorado. They have three locations, and currently employ about 100 employees. They are relatively small company but over the last three to four years business has been steadily rising. Before the influx of new business the slow systems didn’t really bother the business or the employee’s production, but over the past years the need to upgrade their systems processes has become apparent. Academy Carpets now desperately needs a new system integrated, some salesmen are still using a pen and pad to track sales and request their orders, as a result of this their orders are constantly getting misconstrued up due to the lack of organization. The goal is to get the entire organization on an integrated computer system and provide the staff with a user friendly system that will give them the organization and performance that is needed for the company to continue to grow. Academy Carpets hopes by achieving this goal, not only will the salesmen have a less complicated workplace but Academy Carpets will have the ability to place, track and...

Words: 3523 - Pages: 15

Premium Essay

Hsm 270

...Program Planning and Grant Proposal HSM 270 Program Planning and Grant Proposal Working in human service fields certain individuals within the agency will be investing their time on program planning and grant proposals. Program planning is the first step in planning of a particular program in which needs funds. Program planning is a process with objectives, setting up goals and evaluation of all statistical data is measured. In this process of program planning; the team illustrates where a program or service might be needed in the community or city. It is a plan that someone or a group puts together so that the program function thoroughly. After careful ideas are secure in laid out on paper a grant proposal is the next step. The grant proposal must address the grantor’s goals, objectives and their main priorities. Through specific and clearly defined detailed information within the proposal would it be considered by the funders to be addressed. An application for a grant should include the following detailed information: 1. Table of contents 2. Abstract 3. Specific goals 4. Targeted area 5. Evaluation plan 6. Budget and budget justification 7. Community support Grants use the same basic information as with the planning of a program so that it can be approved. This process is one of the similarities between grant proposals and program planning. One difference is that a grant is a plan for money and a program plan is ideas that someone...

Words: 312 - Pages: 2

Premium Essay

Bus 437

...Process Modeling vs. Configuration Management Derrick L. Mines Bus 437 Project Procurement Management Dr. Jim Marion, PMP April 30, 2014 Thesis Statement In order to determine which is more applicable across the widest possible range of situations, we must first understand process modeling and configuration management and also distinguish the difference between the two. Organizations have become successful for many reasons and two of those reasons are due to the use of Process Modeling and Configuration Management. In order to determine which is more applicable across the widest possible range of situations, we must first understand process modeling and configuration management and also distinguish the difference between the two. According to The Wiley Guide to Project Technology, Supply Chain & Procurement Management, authors Peter W.G. Morris and Jeffrey K, Pinto (2007) explains that “Process models are process of the same nature that are classified together into a model. Thus, a process model is a description of a process at the type level. Since the process model is at the type level, a process is an instantiation of it.” Pg.82 The same process model is used repeatedly for the development of many applications and thus, has many instantiations. One possible use of a process model is to prescribe how things must/should/could be done in contrast to the process itself which is really what happens. According to Davenport (1994), “The design of the project...

Words: 655 - Pages: 3

Premium Essay

Systems Developments Life Cycle

...The systems development life cycle (SDLC) is the traditional systems development method that organizations use for large-scale IT projects. This system is designed to help the flow of information from department to department. The three major advantages of SDLC are accountability, error detection and control of the information being processed. SDLC is typically made up of eight sections. They are: systems investigation, systems analysis, systems design, programming, testing, implementation, operation, and maintenance. Systems investigation is a feasible study in which a business will decide on which three options they will conduct with their business in order to stay relevant. They are: (1) do nothing and continue to use the existing system unchanged, (2) modify or enhance the existing system, or (3) develop a new system. This step is carried out by the board members, or a committee that is driving the process. If they are not present, then management would step in to make the decision. A systems analysis is the examination of a business problem and that the company or organization plans to solve with an information systems and are carried out by a systems analyst. Systems design describes how the system will accomplish its tasks. This is basically the blueprint of how the system will be integrated in the organization; including hardware, software, personnel, procedures, and user interfaces amongst other things. This step is typically carried out by the project managers...

Words: 410 - Pages: 2

Free Essay

Hola

...Individual Report What I understand about Systems Engineering is that, is an area that focus in the structure, management and logistic of a project. I think this area is very important in the field of engineering. Because they are like the roots of the project. Is like putting everything in order to have a logistic and to work with a same direction. In this class I learn a lot of things that I can apply in the engineering field. As it was passing the semester I understand things that when I came into this class, there were not clarified at all. In the project we were assign to do as the semester was passing I learned a lot of things helpful in the field of engineering. My team members and I at the beginning, we were confuse of what to present in our project. We change the topic like two times. But finally as a team we decide to do the project in the fabrication of Ecological Tires, which are better for the environment and reduce pollution. In the project I learned how to make the Conceptual Design, Preliminary Design and Detailed Design of a project. To make the Conceptual, Preliminary and Detailed Design, I learned how to do Need Statements, SE Process Diagrams, Tradeoff Studies, Operational Requirements, Design Requirements, Functional Diagrams Serial, Logical Diagrams, ICOM Diagrams, Risk Analysis, Migration Plans, System Reliability, System Integrations, etc… To make the project first of all, we make the Need Statement. They can be different Needs Statements...

Words: 954 - Pages: 4

Free Essay

Chapter1. the Systems Development Environment

...Chapter1. The Systems Development Environment Problems and exercises 1. Answer: It is essential that systems analysis and design methodologies should be applied to build a system due to methodologies, which are a sequence of step-by-step approaches, helping develop your final product: the information system. Supposing that the system is built in whatever way seems to be “quick and easy”, a series of problems will occur in the following steps. Since the main goal of systems analysis and design is to improve organizational systems and the efficiency of employees accomplishing key business tasks, it seems to ignore the potential danger when skipping the process of systems analysis and design. The value provided by the engineering approach is the software engineering process that forms an organizational approach to systems analysis and design meanwhile makes the process be performed more easily and effectively. Additionally, to improve the organization’s current information. 2. Boundary Education level Answer: Students might describe inputs to a university or college as new students, new faculty, new employees, supplies, or funding. Some outputs include graduating or transferring students, faculty, and other employees who take jobs elsewhere, knowledge, or inventions. The boundary should be the level of education. The components of a university they typically have business functions, academic functions and functional hierarchy. Nearly all universities are faced with...

Words: 1033 - Pages: 5