| 基于闭环阻尼转矩分析法的电力系统稳定器参数整定 |
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| 引用本文： | 周涛,陈中,郭瑞兴. 基于闭环阻尼转矩分析法的电力系统稳定器参数整定[J]. 电力系统自动化, 2016, 40(18): 56-60 |
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| 作者姓名： | 周涛 陈中 郭瑞兴 |
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| 作者单位： | 东南大学电气工程学院, 江苏省南京市 210096,东南大学电气工程学院, 江苏省南京市 210096,东南大学电气工程学院, 江苏省南京市 210096 |
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| 基金项目： | 国家自然科学基金资助项目(51277029) |
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| 摘 要： | 阻尼转矩分析(DTA)法中的DTA灵敏度系数表征了电力系统稳定器(PSS)传递函数的变化对系统模态的影响,真正得到的是开环状态下的数值,而闭环情况下的数值更有意义。提出了闭环DTA的概念及其计算方法,在此基础上提出了一个新的灵敏度指标并指出其应用场景,即PSS闭环参数设计和运行方式变化时PSS参数的在线调整,最后通过两区四机系统和大电网的算例证明了闭环DTA指标及其应用的正确性和可行性。
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| 关 键 词： | 电力系统稳定器 低频振荡 阻尼转矩分析法 灵敏度系数 |
| 收稿时间： | 2015-09-23 |
| 修稿时间： | 2016-06-17 |
Power System Stabilizer Parameter Tuning Based on Closed-loop Damping Torque Analysis Method |
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| ZHOU Tao,CHEN Zhong and GUO Ruixing. Power System Stabilizer Parameter Tuning Based on Closed-loop Damping Torque Analysis Method[J]. Automation of Electric Power Systems, 2016, 40(18): 56-60 |
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| Authors: | ZHOU Tao CHEN Zhong GUO Ruixing |
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| Affiliation: | School of Electrical Engineering, Southeast University, Nanjing 210096, China,School of Electrical Engineering, Southeast University, Nanjing 210096, China and School of Electrical Engineering, Southeast University, Nanjing 210096, China |
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| Abstract: | The sensitivity coefficient of damping torque analysis(DTA)reflects the influence on system modalities of the change in transfer function. However, the coefficient is the value in the open-loop state. The value in the closed-loop state is more meaningful. As a result, this paper proposes the closed-loop DTA and its calculation method. Based on this, a new sensitivity index is proposed. Its application scenarios are also put forward including the closed-loop parameter design of power system stabilizer(PSS)and the online optimization of PSS when the operating method changes. At last, the correctness and feasibility of the closed-loop DTA and its applications are demonstrated by practical examples. This work is supported by National Natural Science Foundation of China(No. 51277029). |
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| Keywords: | power system stabilizer(PSS) low frequency oscillation damping torque analysis method sensitivity coefficient |
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