| 中压大功率负荷特性模拟装置的控制策略 |
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| 引用本文： | 单任仲,尹忠东,肖湘宁,张扬.中压大功率负荷特性模拟装置的控制策略[J].中国电机工程学报,2010(9). |
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| 作者姓名： | 单任仲 尹忠东 肖湘宁 张扬 |
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| 作者单位： | 电力系统保护与动态安全监控教育部重点实验室(华北电力大学); |
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| 基金项目： | “十一五”国家科技支撑计划重大项目(2007BAA12B03); 北京市教育委员会共建项目~~ |
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| 摘 要： | 提出一种新颖的三相并联型负荷特性模拟装置及其相应的主电路拓扑结构。该装置采用分相控制,其基波和谐波电流采用解耦控制,级联H桥模块采用三角载波移相控制,通过连接电抗器实现基波和谐波电流的注入及装置功率的调节。提出调节逆变器输出基波电压相角和幅值来调节注入系统的有功和无功功率,并给出装置有功和无功功率的数学表达式。分析装置在不同工况下的等效电路,得到系统电抗、基波连接电抗和谐波滤波电抗对装置注入电流精度的影响。对低频电流波动、电流谐波和功率因数调节分别进行仿真研究,仿真结果表明了主电路拓扑及控制策略对负荷特性模拟的可行性和有效性。
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| 关 键 词： | 电能质量 功率因数 电流扰动 负荷特性 载波移相控制 滞环电流控制 |
Control Strategy Analysis of the Simulative Appliance With Medium-voltage and Large-power Load Characteristic |
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| SHAN Ren-zhong,YIN Zhong-dong,XIAO Xiang-ning,ZHANG Yang ,Ministry of Education,Changping District,Beijing ,China.Control Strategy Analysis of the Simulative Appliance With Medium-voltage and Large-power Load Characteristic[J].Proceedings of the CSEE,2010(9). |
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| Authors: | SHAN Ren-zhong YIN Zhong-dong XIAO Xiang-ning ZHANG Yang Ministry of Education Changping District Beijing China |
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| Affiliation: | SHAN Ren-zhong,YIN Zhong-dong,XIAO Xiang-ning,ZHANG Yang (Key Laboratory of Power System Protection , Dynamic Security Monitoring , Control (North China Electric Power University),Ministry of Education,Changping District,Beijing 102206,China) |
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| Abstract: | A novel main circuit topology of the simulative appliance with three-phase parallel-connected load characteristic was proposed. The split-control strategy is adopted in this appliance,and the fundamental current and harmonic current are decoupling-controlled. The carrier phase shifting (CPS) control strategy is used to control cascaded H-bridges. Power regulation and injection of the fundamental current and harmonic current are realized through connected reactors. The control strategy on regulating the phas... |
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| Keywords: | power quality power factor current disturbance load characteristic carrier phase shifting control hysteresis current control |
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