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Abstract
This paper presents a comparative study of three different load frequency (LF) controller designs for interconnected power systems. They are the conventional integral controller, a controller based on the pole-placement technique, and a controller based on optimal control law. Each controller has been designed to improve the dynamic response of system frequency and tie line power flow under a sudden load change. The results obtained using a MATALB computer program show the effectiveness of the LF controller designs. The results also show that the combined optimal controller with conventional integral controller can provide good damping to the system and reduce the overshoot.
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References
- AL-BADI, M., AWLADTHANI, A., ALOMEIRI, B. 2000. Load Frequency Control of Interconnected Power Systems. undergraduate final year project, SQU, Muscat.
- FELIACH, A. 1987. Optimal Decentralized Load Frequency Control. IEEE Trans. on Power Systems, 2: 379-386
- FOSHA, C.E. and ELGERD, O.I. 1999. The megawatt-frequency control problem: a new approach via optimal control theory. IEEE Trans. on Power Systems, 4: 563-577.
- HIYANA, T. 1982. Design of Decentralized Load Frequency Regulators for Interconnected Power Systems. IEE Proceeding, PAS.129: 17-23
- NOBELE, B. and DANIEL, J. 1988. Applied Linear Algebra. Third Edition. Printice Hall.
- OHNO, H., 1996. Basic study to improve performance of automatic generation control. Proceeding of 12th Power Systems Computation Conference: 1157-1162
- PHILLIPS and HARBOR , 1996. Feedback Control Systems, Third Edition, Prentice Hall.
- SAADAT, H., 1999. Power System Analysis, McGraw-Hill.
- TALAQ, J. and F. ALBASRI. 1999. Adaptive Fuzzy Gain Scheduling for Load Frequency Control. IEEE Trans. on Power Systems,14: 145-151
- WOOD, A. 1996. Power Generation, Operation and Control. Prentice-Hall. New York.
- YANG, T., CIMEN, H. AND O. ZHU. 1998. Decentralized Load-Frequency Controller Design Based On Structured Singular Values. IEE Proceeding on Gener. Transm. Distrib, 145: 7-13
References
AL-BADI, M., AWLADTHANI, A., ALOMEIRI, B. 2000. Load Frequency Control of Interconnected Power Systems. undergraduate final year project, SQU, Muscat.
FELIACH, A. 1987. Optimal Decentralized Load Frequency Control. IEEE Trans. on Power Systems, 2: 379-386
FOSHA, C.E. and ELGERD, O.I. 1999. The megawatt-frequency control problem: a new approach via optimal control theory. IEEE Trans. on Power Systems, 4: 563-577.
HIYANA, T. 1982. Design of Decentralized Load Frequency Regulators for Interconnected Power Systems. IEE Proceeding, PAS.129: 17-23
NOBELE, B. and DANIEL, J. 1988. Applied Linear Algebra. Third Edition. Printice Hall.
OHNO, H., 1996. Basic study to improve performance of automatic generation control. Proceeding of 12th Power Systems Computation Conference: 1157-1162
PHILLIPS and HARBOR , 1996. Feedback Control Systems, Third Edition, Prentice Hall.
SAADAT, H., 1999. Power System Analysis, McGraw-Hill.
TALAQ, J. and F. ALBASRI. 1999. Adaptive Fuzzy Gain Scheduling for Load Frequency Control. IEEE Trans. on Power Systems,14: 145-151
WOOD, A. 1996. Power Generation, Operation and Control. Prentice-Hall. New York.
YANG, T., CIMEN, H. AND O. ZHU. 1998. Decentralized Load-Frequency Controller Design Based On Structured Singular Values. IEE Proceeding on Gener. Transm. Distrib, 145: 7-13