A Multi-Objective Assessment for Primary Frequency of Generator

Author:

An Ya Kun1,Zheng Le2,Song Jun Ying3,Ye Zheng4,Cheng Wen Qing4

Affiliation:

1. Three Gorges University

2. Tsinghua University

3. State Grid Hunan Electric Power Company

4. State Grid Taizhou Power Supply Company

Abstract

The ability of the generator unit response frequency change is the key issue of assessing primary frequency regulation. Meanwhile, the setting of speed regulating system parameter greatly affects primary frequency performance of generators. Therefore, this paper proposes a comprehensive evaluation system, which can comprehensively analyze and evaluate the ability of primary frequency regulation from various aspects. It combines speed regulating system parameter index with common evaluation index. In this part, the author puts forward a multi-objective assessment algorithm. Firstly, when generators experienced disturbances, collect the corresponding data of plant and system. Then the speed regulating system parameter is estimated by the actual accident of generator. Besides, the common evaluation index is calculated, including the contribution electric quantity, response time, delay time and the contribution ratio. Finally, the algorithm is applied to the actual hydro power units and thermal power units, and the results illustrate the feasibility and reliability of the algorithm.

Publisher

Trans Tech Publications, Ltd.

Reference8 articles.

1. LI Miao, SUN Jianbo, LI Xiaoping, Online evaluation of primary frequency regulation based on WAMS, APPEEC 2012 Asia-Pacific Power and Engineering Conference.

2. ZHANG Shuang, Overview of PMU-based Wide Area Measurement System for Power Network, Guangdong Electric Power, vol. 20, pp.26-29, Dec. (2007).

3. ZHENG Tao, DAI Zeimei, GAO Fuying, Estimate and evaluation of the control area PFR based on PMU, APAP 2011-Proceedings: 2011 International Conference on Advanced Power System Automation and Protection, v1, pp.643-647.

4. LI Duanchao, CHEN Zhongyuan, et al, Real-time measurement and reward method of the efficiency of generator unit primary frequency regulation, Automation of the Electric Power System, 2004, 28(2): 70-72.

5. YANG Jianhua, Research and development of assessment system of primary frequency regulation in Central China Power Grid, Automation of Electric Power System, 2008, 32(9): 96-99.

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Prediction technology and application of primary frequency regulation capability of thermal power unit;IOP Conference Series: Earth and Environmental Science;2020-02-01

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