| 基于PWM整流器的无功补偿容量整定方法 |
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| 引用本文： | 甘伟,冀红超,杨兴武. 基于PWM整流器的无功补偿容量整定方法[J]. 电测与仪表, 2016, 53(11). DOI: 10.3969/j.issn.1001-1390.2016.11.011 |
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| 作者姓名： | 甘伟 冀红超 杨兴武 |
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| 作者单位： | 上海电力学院,上海,200090 |
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| 基金项目： | 国家自然科学基金资助项目(51207086)；上海市教育委员会科研创新项目(14YZ126)；上海市科委资助项目(13DZ2251900)；上海高校青年教师培养资助计划(sdl12004) |
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| 摘 要： | 为了充分利用PWM整流器的容量,实现对电网无功功率的调节及电网电压的稳定控制,深入分析了一种基于PWM整流器的无功补偿容量整定方法。重载情况下,PWM整流器在其容量范围内向电网不补偿或少量补偿无功功率,无功功率补偿量由PWM整流器的额定容量和直流负载功率共同决定;轻载情况下,PWM整流器能够补偿电网所缺的所有无功功率。文章还详细分析了直流电容参数的选取方法。最后通过MATLAB/Simulink仿真进行了验证,仿真结果表明该整定方法能够实现无功功率的动态补偿。
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| 关 键 词： | PWM整流器 无功补偿 电网 额定容量 |
| 收稿时间： | 2015-01-08 |
| 修稿时间： | 2015-03-26 |
Reactive Power Compensation Capacity Tuning Method Based on PWM Rectifier |
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| GAN Wei,JI Hong-chao and YANG Xing-wu. Reactive Power Compensation Capacity Tuning Method Based on PWM Rectifier[J]. Electrical Measurement & Instrumentation, 2016, 53(11). DOI: 10.3969/j.issn.1001-1390.2016.11.011 |
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| Authors: | GAN Wei JI Hong-chao YANG Xing-wu |
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| Affiliation: | Department of Electrical Engineering,Shanghai University of Electric Power,Department of Electrical Engineering,Shanghai University of Electric Power,Department of Electrical Engineering,Shanghai University of Electric Power |
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| Abstract: | In order to fully employ the capacity of the PWM rectifier , and realize the regulation of reactive power and the stable control of voltage in the grid , a deep analysis of a reactive power compensation capacity tuning method based on PWM rectifier has been presented in this paper .In heavy load situations , the PWM rectifier does not com-pensate or compensate a small amount of reactive power , that is to say , the reactive power compensation amount is de-termined by the rated capacity of the PWM rectifier and the DC load power;in light load situations , the PWM rectifier can compensate the whole reactive power in the grid .This paper also analyzes the selection method of the DC capaci-tor parameter in detail.At last, it validates the system through the MATLAB/Simulink, the simulation results show that the tuning method can realize dynamic reactive power compensation . |
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| Keywords: | PWM rectifier reactive power compensation power grid rated capacity |
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