Improved interval time-delay compensation method for WPSS

被引：0

作者：

Chen, Gang ^{[1
]}

Zhang, Hua ^{[1
]}

Cheng, Lin ^{[2
]}

Teng, Yufei ^{[1
]}

Ding, Lijie ^{[1
]}

Zhang, Fang ^{[2
]}

机构：

[1] State Grid Sichuan Electric Power Research Institute, Chengdu

[2] State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Tsinghua University, Beijing

来源：

Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2014年 / 34卷 / 12期

关键词：

Electric power systems; Field test; Improved; interval compensation; Low-frequency oscillation; Time-delay; Wide-area power system stabilizer;

D O I：

10.3969/j.issn.1006-6047.2014.12.013

中图分类号：

学科分类号：

摘要：

The key of WPSS(Wide-area Power System Stabilizer) engineering application is the proper compensation of time-delay for the feedback input signal. The measured data of PMU(Phasor Measurement Unit) time-delay in real grid present the characteristics of random distribution and strong vibration. An improved method of interval time-delay compensation is presented to deal with the variation of time-delay, which takes the average delay for a certain time before its action as the reference for selecting the interval compensator to avoid the wrong result caused by time-delay chattering. The results of open-loop and close-loop time-domain and frequency-domain simulations for two-area four-machine power system show the improved method adapts to the delay variation better. RTDS simulation of real power grid verifies the effectiveness and feasibility of the proposed method. ©, 2014, Electric Power Automation Equipment Press. All right reserved.

引用

页码：76 / 82

页数：6

共 17 条

[1]

Meng F., Dong X., Gao Z., Et al., Online PSS evaluation based on WAMS/PMU technology , Electric Power Automation Equipment, 32, 10, pp. 146-149, (2012)

[2]

Ree J.D.L., Centeno V., Thorp J.S., Et al., Synchronized phasor measurement applications in power systems, IEEE Transactions on Smart Grid, 1, 1, pp. 20-27, (2010)

[3]

Ju P., Zheng S., Xu Q., Et al., Survey of wide area measurement system, Electric Power Automation Equipment, 24, 7, (2004)

[4]

Zhang J., Chung C.Y., Han Y., A novel modal decomposition control and its application to PSS design for damping interarea oscillations in power systems, IEEE Transactions on Power Systems, 27, 4, pp. 2015-2025, (2012)

[5]

Ma J., Wang Y., Wang Z., Et al., Wide-area damping robust H<sub>2</sub> /H<sub>∞</sub> control strategy based on perfect regulation , Electric Power Automation Equipment, 33, 11, pp. 49-53, (2013)

[6]

Huang L., Guo J., Sun H., Et al., Wide-area anti-delay coordinated control among FACTS controllers , Electric Power Automation Equipment, 34, 1, pp. 37-42, (2014)

[7]

Qi J., Zhang Y., Selection of time-delay control signal in wide-area power system, Electric Power Automation Equipment, 30, 6, pp. 61-71, (2010)

[8]

Chaudhuri B., Majumder R., Pal B.C., Wide-area measurement-based stabilizing control of power system considering signal transmission delay , IEEE Transactions on Power Systems, 19, 4, pp. 1971-1979, (2004)

[9]

Snyder A.F., Hadjsaid N., Georges D., Et al., Inter-area oscillation damping with power system stabilizers and synchronized phasor measurements, 1998 International Conference on Power System Technology, pp. 790-794, (1998)

[10]

Philipp L.D., Mahmood A., Philipp B.L., An improved refinable rational approximation to the ideal time delay, IEEE Transactions on Circuit System, 46, 5, pp. 637-640, (1999)

← 1 2 →