| 引用本文: | 随慧斌,赵建国,李可军,牛 林.考虑不均衡区域负荷增长的在线电压稳定评估[J].电力自动化设备,2011,31(3): |
| SUI Huibin,ZHAO Jianguo,LI Kejun,NIU Lin.On-line voltage stability assessment considering uneven growth of regional load[J].Electric Power Automation Equipment,2011,31(3): |
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| 摘要: |
| 提出一种基于连续潮流的电力系统在线电压稳定评估方法，该方法考虑了不均衡区域负荷增长模式和发电计划。负荷增长系数由区域短期负荷预测数据得出，区域短期负荷预测考虑多种因素对负荷变化的影响，预测未来24小时区域的负荷情况，根据此负荷情况使用经济调度安排发电计划，在此基础上用连续潮流计算P - U曲线和负荷裕度。在IEEE 118节点系统上的仿真结果表明，该评估方法能够比较真实地在线反映系统的电压稳定情况。 |
| 关键词: 电压稳定 连续潮流法 潮流计算 负荷增长模式 |
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| On-line voltage stability assessment considering uneven growth of regional load |
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SUI Huibin1, ZHAO Jianguo2, LI Kejun1, NIU Lin2
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1.School of Electrical Engineering，Shandong University，Ji’nan 250061，China;2.State Grid of China Technology College，Ji’nan 250002，China
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| Abstract: |
| An on-line voltage stability assessment algorithm is proposed based on the continuation power flow calculation，which considers the uneven growth of regional load and generation scheme. The load growth coefficient is deduced from the short-term regional load forecasts. With the consideration of different growth facts，the regional loads within 24 hours are predicted and the generation scheme is planned by the economic dispatch，based on which，the power-voltage curves and load margins are obtained by continuation power flow calculation. The simulation results for IEEE 118-bus system indicate the proposed algorithm on-line assesses the system voltage stability truly. |
| Key words: voltage stability continuation power flow power flow calculation load growth pattern |
