| 提高电力系统稳定器增益的相位幅值协调优化方法 |
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| 引用本文： | 吴剑超,霍承祥,党杰,李照庭,马世俊.提高电力系统稳定器增益的相位幅值协调优化方法[J].电力系统自动化,2018,42(24):203-208. |
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| 作者姓名： | 吴剑超 霍承祥 党杰 李照庭 马世俊 |
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| 作者单位： | 中国电力科学研究院有限公司, 北京市 100192,中国电力科学研究院有限公司, 北京市 100192,国家电网华中电力调控分中心, 湖北省武汉市 430077,中国电力科学研究院有限公司, 北京市 100192,中国电力科学研究院有限公司, 北京市 100192 |
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| 基金项目： | 国家重点研发计划资助项目(2018YFB0900605)；华中电网有限公司科技项目(xtb11201702694) |
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| 摘 要： | 特高压互联电网的建设造成了系统低频振荡和阻尼的降低，增加了电网动态失稳的风险。电力系统稳定器(PSS)可以有效地提高系统的阻尼。由于常规的参数设置方法可能造成PSS运行增益偏小的问题，文中提出了一种新的参数设置思路和方法。通过相位和幅值协调优化，提升PSS增益的稳定裕度，从而大幅提高PSS正常运行时的交流增益，明显地增强PSS的阻尼效果。仿真及实际现场PSS投运试验验证了新的参数设置办法在基本不影响角度补偿的情况下，大幅提高PSS运行增益，提升抑制低频振荡的能力，提高小干扰稳定性和电网故障后的恢复能力。
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| 关 键 词： | 低频振荡 动态稳定性 电力系统稳定器 增益 |
| 收稿时间： | 2018/3/30 0:00:00 |
| 修稿时间： | 2018/11/12 0:00:00 |
Phase and Amplitude Coordination Optimization Method for Improving Gain of Power System Stabilizer |
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| WU Jianchao,HUO Chengxiang,DANG Jie,LI Zhaoting and MA Shijun.Phase and Amplitude Coordination Optimization Method for Improving Gain of Power System Stabilizer[J].Automation of Electric Power Systems,2018,42(24):203-208. |
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| Authors: | WU Jianchao HUO Chengxiang DANG Jie LI Zhaoting and MA Shijun |
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| Affiliation: | China Electric Power Research Institute, Beijing 100192, China,China Electric Power Research Institute, Beijing 100192, China,Central China Electric Power Dispatching and Control Sub-center of State Grid, Wuhan 430077, China,China Electric Power Research Institute, Beijing 100192, China and China Electric Power Research Institute, Beijing 100192, China |
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| Abstract: | The construction of UHV interconnected power grid results in low frequency oscillation and damping reduction, and increases the risk of dynamic instability of power grid. The power system stabilizer(PSS)can effectively improve the damping of the system. Because the conventional parameter setting method may cause the small gain of PSS operation, a new idea and method of parameter setting is proposed. Through the coordinated optimization of phase and amplitude, the stability margin of PSS gain is improved, which greatly improves the AC gain of PSS in normal operation and obviously enhances the damping effect of PSS. The simulation and PSS commissioning test results verify that the new parameter setting method can greatly improve the PSS operation gain, the ability to suppress low frequency oscillation, the stability of small disturbance and the recovery ability after power grid failure without affecting angle compensation. |
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| Keywords: | low frequency oscillation dynamic stability power system stabilizer gain |
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