60°坐标系SVPWM算法在静止无功发生器上的应用

Application of SVPWM algorithm on 60° coordinate system for static var generator

传统SVPWM算法应用于中压大容量静止无功发生器(SVG)时,存在补偿低效率问题。采用60°坐标系SVPWM算法,通过简化作用时间计算步骤实现缩短补偿时间,提高补偿效率,解决了补偿低效性问题。同时,建立了60°坐标系下冗余小矢量作用时间函数,确保逆变器中点电位浮动为零,电压输出稳定,可以保证SVG长期可靠运行。

This paper proposes a novel 60°coordinate SVPWM algorithm designed to address the inefficient compensation resulting from the application of traditional SVPWM algorithm in middle voltage big capacity static var generator（ SVG）. The algorithm works by reducing compensation time due to simplified steps involving time calculation,improving compensation efficiency,and ultimately solving inefficiency compensation. This is accompanied by establishing the action time function of redundancy small vector typical of the 60° coordinate system in a way that can ensure zero neutral voltage floating,give stable inverter output voltage and thus achieve an SVG long-term reliable operation.