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| 负荷模型及参数对系统动态过程中频率的影响 | |
| 引用本文： | 贺仁睦,叶静,林盾,庞松岭.负荷模型及参数对系统动态过程中频率的影响[J].电力系统自动化,2010,34(24):27-30. |
| 作者姓名： | 贺仁睦 叶静 林盾 庞松岭 |
| 作者单位： | 1. 华北电力大学电力系统保护与动态安全监控教育部重点实验室,北京市,102206 2. 三亚市供电局,海南省三亚市,572000 3. 海南电力试验研究所,海南省海口市,570204 |
| 摘 要： | 在一些独立电网或微网中,故障时系统频率的波动往往较大,此时频率的变化对系统分析的影响已不能被忽略.以海南独立电网为研究对象,应用兼顾负荷频率特性的模型结构来辨识负荷模型参数,并在原负荷模型和实测负荷模型2种情况下,将该电网故障时系统频率的仿真结果与实测频率进行比较,验证了计及负荷频率特性进行参数辨识的合理性.在此基础上,利用摄动法分析了实测负荷模型各参数对系统动态过程中频率的影响程度.最后利用上述分析结论对实测负荷模型的参数范围进行了调整,并利用调整后的参数再次仿真,结果表明了该方法的有效性. |
| 关 键 词： | 负荷建模 模型结构 模型参数 实测频率 摄动法 |
| 收稿时间： | 4/27/2010 9:59:29 AM |
| 修稿时间： | 11/4/2010 9:18:20 AM |
Impacts of Load Model Parameters on System Frequency During the System Transients |
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| HE Renmu,YE Jing,LING Dun,PANG Songling.Impacts of Load Model Parameters on System Frequency During the System Transients[J].Automation of Electric Power Systems,2010,34(24):27-30. | |
| Authors: | HE Renmu YE Jing LING Dun PANG Songling |
| Affiliation: | HE Renmu1,YE Jing1,LING Dun2,PANG Songling3(1.Key Laboratory of Power System Protection , Dynamic Security Monitoring , Control Under Ministry of Education,North China Electric Power University,Beijing 102206,China,2.Sanya Power Supply Bureau,Sanya 572000,3.Hainan Power Experimental Research Institute,Haikou 570204,China) |
| Abstract: | When faults occurred in small sized isolated power systems or microgrids,frequency fluctuations are always large.Consequently the impact of the frequency deviations on secure system operations can not be ignored most of the time.Hainan power grid in both intergrated and separated modes are used in this research.A new method is proposed for load parameter identification considering its frequency characteristics.Both static load model and measured-based load model are used in the case studies.The simulated sy... |
| Keywords: | load modeling model structure model parameter measured frequency perturbation theory |
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