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Content Provider | IEEE Xplore Digital Library |
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Author | Heon-Su Ryu Ki-Young Jung Jeong-Do Park Young-Hyun Moon Hong-Woo Rhew |
Copyright Year | 2000 |
Description | Author affiliation: Dept. of Electr. Eng., Yonsei Univ., Seoul, South Korea (Heon-Su Ryu) |
Abstract | This paper presents an extended integral control to LFC (load frequency control) scheme with the presence of GRC (generation rate constraints) in order to get rid of the overshoot of conventional PI control. The conventional LFC scheme does not yield adequate control performance with consideration of the singularities of speed-governor such as rate limits on valve position and GRC. In order to overcome this drawback, an extended integral control is developed for the PI control of the speed governor under the presence of GRC. The key idea of the extended integral control is using a decaying factor to reduce the effects of the error in the past. The decaying factor greatly affects the control performance, and should be carefully selected. This study determines the decaying factor in proportion to the degree of deviation in several levels. The computer simulation has been conducted for the single machine system with various load changes. The simulation results show that the proposed controller based on extended integral control yields much improved control performance, compared to the conventional PI controller. |
Starting Page | 1877 |
Ending Page | 1882 |
File Size | 581176 |
Page Count | 6 |
File Format | |
ISBN | 0780364201 |
DOI | 10.1109/PESS.2000.868820 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2000-07-16 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Frequency control Error correction Valves Pi control Feedback Moon Steady-state Optimal control Process control Power system control |
Content Type | Text |
Resource Type | Article |
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