Computer Aided Power System Design and Analysis
NORTHUMBRIA UNIVERSITY
School of Computing, Engineering and Information Sciences
BEng (Hons) Electrical and Electronic Engineering
Computer Aided Power System Design and Analysis
Module: EN0310 Power Systems
Assignment Tutor: Dr G.A. Putrus and Dr.Z.Gao
Academic year: Final Year
Assignment: Value: 20% of Module
Student name: FANGFANG LU (w10024301)
Contents
1. Introduction---------------------------------------------------------------------------------------1
2. Construct the Network--------------------------------------------------------------------------2 2.1Construction of the Network Model-------------------------------------------------------2 2.2 Approximations and Assumptions Made-------------------------------------------------3
3. Computer Aided Design------------------------------------------------------------------------4 3.1 Load Flow Analysis-------------------------------------------------------------------------4 3.2 Unbalanced Fault Calculations------------------------------------------------------------5
4. Analysis of Power System---------------------------------------------------------------------7 4.1 Calculation of Short-circuit level at Bus 4 ----------------------------------------------7 4.2 Unbalanced fault Calculations ------------------------------------------------------------9
5. Active and Reactive Power Fl ow-----------------------------------------------------------13
6. Methods of Voltage and Frequency Control-----------------------------------------------15
7. Conclusions-------------------------------------------------------------------------------------16
8. References--------------------------------------------------------------------------------------17
1. Introduction Under normal conditions electrical transmission systems operate in their steady-state mode and the basic calculation required to determine the characteristics of this state is termed load flow (or
School of Computing, Engineering and Information Sciences
BEng (Hons) Electrical and Electronic Engineering
Computer Aided Power System Design and Analysis
Module: EN0310 Power Systems
Assignment Tutor: Dr G.A. Putrus and Dr.Z.Gao
Academic year: Final Year
Assignment: Value: 20% of Module
Student name: FANGFANG LU (w10024301)
Contents
1. Introduction---------------------------------------------------------------------------------------1
2. Construct the Network--------------------------------------------------------------------------2 2.1Construction of the Network Model-------------------------------------------------------2 2.2 Approximations and Assumptions Made-------------------------------------------------3
3. Computer Aided Design------------------------------------------------------------------------4 3.1 Load Flow Analysis-------------------------------------------------------------------------4 3.2 Unbalanced Fault Calculations------------------------------------------------------------5
4. Analysis of Power System---------------------------------------------------------------------7 4.1 Calculation of Short-circuit level at Bus 4 ----------------------------------------------7 4.2 Unbalanced fault Calculations ------------------------------------------------------------9
5. Active and Reactive Power Fl ow-----------------------------------------------------------13
6. Methods of Voltage and Frequency Control-----------------------------------------------15
7. Conclusions-------------------------------------------------------------------------------------16
8. References--------------------------------------------------------------------------------------17
1. Introduction Under normal conditions electrical transmission systems operate in their steady-state mode and the basic calculation required to determine the characteristics of this state is termed load flow (or
References: 1. ERACS “User Guide” and “Technical Manual” available online in ERACS Help menu. 2. eLearning Portal (Blackboard), ‘Module documents’, in particular: Active and Reactive Power Flow Fundamentals of Load Flow Analysis Balanced and Unbalanced Fault Calculations in Power Systems 3. WEEDY, B.M. and COPY B.J.: ‘Electronic Power Systems’ (Wiley) 1998. 4. CHAPMAN, S.:’ Electrical machinery and Power System Fundamentals’, (McGraw Hill), 2002. 5. T.K.NAGSARKAR and M.S.SUKHIJA: ‘Power System Analysis’, Oxford University Press 2007. 6. J.ARRILLAGA and C.P.ARNOLD: ‘Computer Analysis Of Power Systems’, 1990.