中高压链式SVG控制策略
发布时间：2019-02-12 15:15
【摘要】：为使静止无功发生器(static var generator,SVG)具备无功、谐波及不对称电流的综合补偿能力,对中高压链式SVG的控制策略进行了研究。基于选择性谐波补偿策略提出了利用同步旋转坐标变换及离散傅里叶变换(discrete fouries transform,DFT)相结合的SVG指令电流检测方法,应用载波层叠脉宽调制(pulse width modulation,PWM)实现指令电流跟踪控制,针对载波层叠PWM方法采用基于逆变桥自身能量平衡原理的软件方法实现直流侧电容电压均衡控制。该控制策略方法简便,运算量较小,便于工程实现,仿真和实验验证证明了其有效性。
[Abstract]:In order to make the static Var Generator (static var generator,SVG) have the comprehensive compensation ability of reactive power, harmonic and asymmetrical current, the control strategy of MHV chain SVG is studied. Based on the selective harmonic compensation strategy, a SVG instruction current detection method based on synchronous rotation coordinate transform and discrete Fourier transform (discrete fouries transform,DFT) is proposed. The carrier stacked pulse width modulation (pulse width modulation,) is applied to detect the current. PWM) is used to realize the command current tracking control. For the carrier stacked PWM method, the DC side capacitor voltage equalization control is realized by using the software method based on the energy balance principle of the inverter bridge itself. The control strategy is simple and easy to implement. The simulation and experimental results show that it is effective.
【作者单位】： 中国矿业大学信息与电气工程学院;
【基金】：高等学校博士学科点专项科研基金(20110095110014)~~
【分类号】：TM761.12
[Abstract]:In order to make the static Var Generator (static var generator,SVG) have the comprehensive compensation ability of reactive power, harmonic and asymmetrical current, the control strategy of MHV chain SVG is studied. Based on the selective harmonic compensation strategy, a SVG instruction current detection method based on synchronous rotation coordinate transform and discrete Fourier transform (discrete fouries transform,DFT) is proposed. The carrier stacked pulse width modulation (pulse width modulation,) is applied to detect the current. PWM) is used to realize the command current tracking control. For the carrier stacked PWM method, the DC side capacitor voltage equalization control is realized by using the software method based on the energy balance principle of the inverter bridge itself. The control strategy is simple and easy to implement. The simulation and experimental results show that it is effective.
【作者单位】： 中国矿业大学信息与电气工程学院;
【基金】：高等学校博士学科点专项科研基金(20110095110014)~~
【分类号】：TM761.12
【参考文献】
相关期刊论文 前9条
1 何英杰;邹云屏;黄柱;张玉成;;基于瞬时无功功率理论的改进谐波检测算法[J];电网技术;2007年06期
2 唐蕾;陈维荣;;瞬时无功功率理论坐标变换的推导及谐波电流检测原理分析[J];电网技术;2008年05期
3 唐杰;王跃球;刘丽;李海娜;;配电网静止同步补偿器的自抗扰控制[J];电网技术;2012年01期
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