| 摘要: |
| 提出了一种“N－1”预想事故下满足静态电压稳定约束的快速可用输电能力（ATC）算法。算法在连续潮流法的基础上，以系统基态“N－1”事故下的运行点和应用灵敏度方法获取的预测点为拟合点，并引入曲线拟合技术来寻找“N－1”预想事故下的近似的“鼻点”，从而确定系统的可用输电能力。以IEEE 30节点测试系统为算例，验证了所提方法的可行性和有效性，同时与基于连续潮流方法所计算的准确值进行比较，结果表明计算误差较小，同时具有更快的计算速度。 |
| 关键词: 可用输电能力 N－1 电压控制 稳定 约束 灵敏度分析 曲线拟合 |
| DOI： |
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| Fast ATC algorithm with voltage stability constraint for N－1 contingency |
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XU Qi
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Nanjing Power Supply Company，Nanjing 210008，China
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| Abstract: |
| A fast ATC（Available Transfer Capability） algorithm with steady-state voltage stability constraint for N－1 contingency is presented，which，based on the continuation power flow method and the curve fitting technique，takes the operating point of N－1 system contingency and the predicted point by sensitivity technique as the curve fitting points to find the approximate nose point for N－1 contingency and then to determine the system ATC. Simulative results of IEEE 30-bus test system validate its feasibility and correctness. Compared with the results of continuation power flow method，it has smaller error and faster speed. |
| Key words: available transfer capability N－1 voltage control stability constraint theory sensitivity analysis curve fitting |
