| 基于LCL滤波器的电压型PWM整流器新型电流控制策略研究 |
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| 引用本文： | 张宪平.基于LCL滤波器的电压型PWM整流器新型电流控制策略研究[J].变流技术与电力牵引,2009(6):36-40. |
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| 作者姓名： | 张宪平 |
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| 作者单位： | 中国电力科学研究院; |
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| 摘 要： | 在对基于LCL滤波器的三相电压型PWM整流器研究基础上提出了一种新型的电流控制策略。该策略采取了电网侧电流反馈控制,能够方便对功率因数进行控制。为了保证系统的稳定性,在电流环内引入了电网电流二次微分环节,根据二相静止坐标系下实轴和虚轴正弦函数的特性,在算法中避免了微分环节可能造成的高频噪声问题。对所提出的控制策略进行了分析和仿真,在此基础上搭建了以TMS320LF2407为控制核心的基于LCL滤波器的三相电压型PWM整流器系统。仿真和实验结果验证了该算法的可行性。
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| 关 键 词： | LCL滤波器 二次微分环节 网侧电流反馈 电压源整流器 |
Study on Novel Current Control Strategy for Voltage Source PWM Rectifier with LCL Filter |
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| ZHANG Xian-ping.Study on Novel Current Control Strategy for Voltage Source PWM Rectifier with LCL Filter[J].Converter Technology & Electric Traction,2009(6):36-40. |
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| Authors: | ZHANG Xian-ping |
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| Institution: | ZHANG Xian-ping(China Electric Power Research Institute,Beijing 100192,China) |
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| Abstract: | It proposes a novel current control strategy for regulating grid currem of three- phase pulse width modulating （PWM） voltage source rectifier （VSR） with LCL filter. The grid current feedback is used to control the power factor expediently, and a second differential link of grid current is designed to stabilize the system. To avoid high frequency noise problem caused by differentiator, AC currents and voltages are dealt in stationary α,β frame. Finally, a three-phase VSR with LCL filter system controlled by TMS320LF2407 is built. Simulated and experimental results verify feasibility of the proposed algorithm. |
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| Keywords: | LCL filter second differential link grid current feedback VSR(voltage source rectifier) |
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