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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。
When the traditional SVPWM algorithm is applied to medium voltage large capacity static var generator (SVG), there is a problem of compensating low efficiency. The 60 ° coordinate system SVPWM algorithm is used to shorten the compensation time and improve the compensation efficiency by simplifying the action time calculation step and solve the problem of inefficiency of compensation. At the same time, the time function of redundant small vector in the 60 ° coordinate system is established to ensure that the midpoint potential of the inverter floats to zero and the voltage output is stable, thus ensuring long-term reliable operation of the SVG.