| 谐波及无功电流的直接检测方法 |
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| 引用本文： | 孙生鸿,李鹏,陈志业.谐波及无功电流的直接检测方法[J].电力系统自动化,2002,26(19):52-55. |
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| 作者姓名： | 孙生鸿 李鹏 陈志业 |
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| 作者单位： | 华北电力大学电力工程系,河北省保定市,071003 |
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| 基金项目： | 教育部博士点专项科研基金资助项目 (19990 0 790 4)~~ |
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| 摘 要： | 摘要：分析了现有的谐波及无功电流检测方法，提出了一种快速的谐波及无功电流直接检测新方法。该直接检测方法引入比例微分环节（PD）作为负反馈，可以补偿滤波环节的延时，显著提高动态响应速度，并具有较好的检测精度。当电网电压不对称时该方法同样适用。最后，通过MATLAB仿真，验证了快速直接检测方法的有效性。
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| 关 键 词： | 谐波电流 无功电流 检测 负反馈 MATLAB |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
ARMONIC AND REACTIVE CURRENTS DETECTION FOR ACTIVE POWER FILTER |
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| Sun Shenghong,Li Peng,Chen Zhiye.ARMONIC AND REACTIVE CURRENTS DETECTION FOR ACTIVE POWER FILTER[J].Automation of Electric Power Systems,2002,26(19):52-55. |
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| Authors: | Sun Shenghong Li Peng Chen Zhiye |
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| Abstract: | The existing methods for detecting harmonic and reactive current are analyzed and a new speedy direct detecting method is brought forward. In this method, the PD negative feedback is proposed, which can compensate for the inherent delay of LPF and quicken the dynamic response speed evidently. Meanwhile this method has better detecting precision. Furthermore,it can also be applied to the unsymmetrical voltages. Finally,the effectiveness of this speedy direct detecting method is verified by MATLAB simulation. |
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| Keywords: | harmonic current reactive current detection negative feedback MATLAB |
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