| 引用本文: | 董飞飞,刘涤尘,吴 军,张 琳,云 雷,汪小明,汪如松.基于系统频率响应特性的“三华”电网交换容量极限计算[J].电力自动化设备,2012,32(7): |
| DONG Feifei,LIU Dichen,WU Jun,ZHANG Lin,YUN Lei,WANG Xiaoming,WANG Rusong.Calculation of exchange capacity limit based on system frequency response characteristics for “San-Hua” power grid[J].Electric Power Automation Equipment,2012,32(7): |
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| 摘要: |
| 提出了一种基于系统频率响应特性的大区电网间交换容量极限的计算方法。 使用最小二乘法对仿真计算得到的频率响应特性系数进行曲线拟合，依据拟合得到的频率响应特性系数的曲线变化趋势来预测不同交换容量下的频率偏差限制点， 在频率响应特性识别与预测分析的基础上进行大区电网间交换容量极限的计算与评估。对“三华”电网的应用表明，所提方法有效、实用，且计算结果具有较高的精度。 |
| 关键词: 电力系统 频率稳定 频率响应 特性系数 曲线拟合 交换容量极限 |
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| 基金项目:国家自然科学基金资助项目（51077103） |
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| Calculation of exchange capacity limit based on system frequency response characteristics for “San-Hua” power grid |
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DONG Feifei, LIU Dichen, WU Jun, ZHANG Lin, YUN Lei, WANG Xiaoming, WANG Rusong
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Wuhan University，Wuhan 430072，China
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| Abstract: |
| The calculation of exchange capacity limit between regional grids is proposed based on the characteristics of system frequency response. The characteristic coefficient of frequency response is calculated by simulation and fitted by the least squares method. Based on the fitted curve，the frequency deviation restriction point is forecasted for different exchange capacities，and the exchange capacity limit between regional grids is further calculated and evaluated by character identification and forecast analysis. Its application to “San-Hua” power grid shows its effectiveness，practicability and high accuracy. |
| Key words: electric power systems frequency stability frequency response characteristic coefficient curve fitting exchange capacity limit |
