| 一种DSTATCOM补偿指令电流的实时检测方法 |
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| 引用本文： | 许胜,赵剑锋,唐国庆.一种DSTATCOM补偿指令电流的实时检测方法[J].电力电子技术,2009,43(11). |
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| 作者姓名： | 许胜 赵剑锋 唐国庆 |
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| 作者单位： | 东南人学,江苏 南京,210096 |
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| 基金项目： | 国家"十一五'科技支撑计划重点项目(2007BAA12803) Foundation Project:Supported by Key Projects in the National Science & Technology Pillar Program in the Eleventh Five-year Plan Period |
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| 摘 要： | 提出一种改进型瞬时对称分量法.该方法根据_二维时域正交坐标系中旋转相量与其瞬时值的对应关系,采用两点采样法,只需连续两次采集三相相量共计6个瞬时值即町确定各序分量的瞬时值.仿真结果表明,该方法能够实时、精确地检测出三相不对称相量中各序分量的瞬时值.基于该方法.提出一种配电网同步补偿装置(DSTATCOM)补偿指令电流的检测方法.该方法避免了复杂的移相电路、锁相环电路以及正余弦函数表的发,丰器及其查表过程等,消除,由此带来的误差和故障.试验结果显示.该电流检测方法能够快速、准确地检测出与系统电压基波正序分量同步的基波正序有功电流分量.从而检测出DSTATCOM装置补偿所需包含的谐波、负序以及无功分量的指令电流.
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| 关 键 词： | 采样 补偿 相量/瞬时对称分量 电流检测 |
A Detection Method for DSTATCOM Compensation Instruction Currents |
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| XU Sheng,ZHAO Jian-feng,TANG Guo-qing.A Detection Method for DSTATCOM Compensation Instruction Currents[J].Power Electronics,2009,43(11). |
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| Authors: | XU Sheng ZHAO Jian-feng TANG Guo-qing |
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| Affiliation: | XU Sheng,ZHAO Jian-feng,TANG Guo-qing (Southeast University,Nanjing 210096,China) |
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| Abstract: | A method of improved instantaneous symmetrical components is introduced.According to the corresponding relationship of the rotating phasor and its instantaneous value in the two-dimension time domain orthogonal coordinate system,two-point sampling method is adopted,each sequence component of three-phase phasor can be confirmed by simple transforms with six instantaneous values obtained by two continuing detections.The simulative results show that,the method can detect each instantaneous sequence component f... |
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| Keywords: | sampling components phasor/instantaneous symmetrical component currents detection |
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