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文章摘要
新型无锁相环DSTATCOM直接电流控制方法
A novel direct current control method for DSTATCOM without PLL
Received:August 21, 2017  Revised:August 21, 2017
DOI:
中文关键词: 配电网静止同步补偿器  锁相环  矢量控制  直接电流控制
英文关键词: distribution network static synchronous compensator (DSTATCOM)  phase-locked loop (PLL)  vector control  direct current control
基金项目:
Author NameAffiliationE-mail
DING MINHUA Hangzhou Sunrise Technology Co.,Ltd. dingmh@sunhopemeter.com 
JIANG GANCAI Hangzhou Sunrise Technology Co.,Ltd. jianggc@sunhopemeter.com 
XU SHENGGUANG* Guangxi University 736389165@qq.com 
YANG DALIANG Guangxi University yangdl@gxu.edu.cn 
WU NING Guangxi University 437859525@qq.com 
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中文摘要:
      传统DSTATCOM直接电流控制方法依赖锁相环和坐标变换,实现较为复杂,本文提出一种新型无锁相环的DSTATCOM直接电流控制方法。通过建立DSTATCOM数学模型,依据矢量等效原理计算出配电网电压有功单位分量和无功单位分量,无需锁相环和坐标变换便可实现无功补偿控制。仿真验证了该方法的可行性。采用 DSP 控制器TMS320F2812和智能功率模块PM300DVA120,搭建了DSTATCOM系统实验平台,在开关频率10kHz、死区时间4μs下获得良好的实验结果。所提方法物理意义清晰且易于嵌入式控制器实现。实验结果表明,所提方法能实现输出电流超前滞后电压的无功补偿实时控制,具有良好的动静态响应性能。
英文摘要:
      Conventional DSTATCOM direct current control method needs phase-locked loop (PLL) and coordinate transformation, making it difficult to implementation. A novel direct current control method for DSTATCOM without PLL is proposed in this paper. By establishing the mathematical model of DSTATCOM,the active power unit component and reactive power unit component of the distribution network voltage are calculated based on the principle of vector equivalence,and the reactive power compensation control can be realized without PLL or coordinate transformation.The novel control method is proved feasible by the MATLAB/Simulink simulation results. The DSTATCOM system experimental platform is established using DSP TMS320F2812 controller and intelligent power module(IPM) PM300DVA120, the experimental results are excellent when the switching frequency is 10 kHz and the dead time is 4μs.The proposed method in this paper has a clear physical meaning and is easy to be realized with embedded controller. The experimental results indicate that the proposed method can realize the flexible reactive power compensation control of the output current lead-lag voltage and has good dynamic and static response performance.
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