| 一种高精度同期并网控制方法 |
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| 引用本文： | 赵涌,张红芳,彭文才,王伟.一种高精度同期并网控制方法[J].电力系统自动化,2010,34(3):8-10. |
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| 作者姓名： | 赵涌 张红芳 彭文才 王伟 |
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| 作者单位： | 国网电力科学研究院/南京南瑞集团公司，江苏省南京市 210003 |
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| 摘 要： | 简要叙述了传统同期预测方式的实现方法，分析了该方式的特点与局限，提出了以最小二乘法拟合曲线准确描述相角差变化的轨迹，以割线法迭代求解精确求取零相角出现的时刻，从而实现零相角合闸的高精度同期算法。仿真试验验证了该同期控制策略具有较高的精度。
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| 关 键 词： | 同期并网 最小二乘法 割线法 相角差 |
| 收稿时间： | 5/4/2009 5:35:08 PM |
| 修稿时间： | 5/28/2010 9:56:48 AM |
A High-precision Control Method for Synchronization |
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| ZHAO Yong,ZHANG Hongfang,PENG Wencai,WANG Wei.A High-precision Control Method for Synchronization[J].Automation of Electric Power Systems,2010,34(3):8-10. |
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| Authors: | ZHAO Yong ZHANG Hongfang PENG Wencai WANG Wei |
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| Abstract: | The implementation method for traditional synchronization prediction is introduced and its characteristics and limitations are analyzed. A high-precision synchronization algorithm is proposed by exactly describing the phase-angle difference trajectory with the fitted curve based on the least square method and solving the accurate moment of zero phase-angle based on iterative solution. The high-precision of this control method is proved by simulation experiments. |
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| Keywords: | synchronization least square method secant method phase-angle difference |
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