SVG级联H桥SVPWM调制算法优化  

Optimization of SVG cascaded H-bridge SVPWM modulation algorithm

作　　者：秦兆杰 赵立胜 李世杰 QIN Zhaojie;ZHAO Lisheng;LI Shijie(Hebei Electric Power Equipment Co.,Ltd.,Handan Hebei 056004,China)

机构地区：[1]河北电力装备有限公司,河北邯郸056004

出　　处：《河北省科学院学报》2023年第3期17-23,共7页Journal of The Hebei Academy of Sciences

摘　　要：SVG(static var generator)级联H桥传统SVPWM调制算法涉及到6个扇区的三角计算,耗时较长。优化的SVPWM算法基于120°坐标系进行运算,这和对称的三相电压相位差一致,从而在计算过程中能够避免复杂的三角运算,运算过程非常简单。此外,优化的SVPWM算法充分利用矢量空间的对称性和旋转对称性减小计算过程和逻辑判断次数,从而使整个算法调制过程最简化。The conventional SVPWM modulation algorithm in SVG cascaded H-bridge involves six sectors of delta calculation,which is time-consuming.Based on the 120 degree coordinate system,the operation performed by the optimized SVPWM algorithm is consistent with the symmetrical three-phase voltage phase difference,so that the complex triangular operation can be avoided in the calculation process thus making the whole algorithm modulation process simplest.In addition,the optimized SVPWM algorithm makes full use of the symmetry and rotational symmetry of vector space to reduce the calculation process and the number of logical judgments,thus simplifying the entire algorithm modulation process.

关 键 词：SVG 级联H桥 SVPWM算法调整 

分 类 号：TM464[电气工程—电器]