【摘要】 提出一种四桥臂电网的三维空间矢量脉宽调制(3D-SVPWM)谐波补偿方法。在建立三相四桥臂APF拓扑结构及数学模型的基础上,采取分类算法对参考电压矢量所处区域进行判断分析,并根据中间变量的线性组合直接获取基矢量的作用时间。最后,基于片上系统(SOC)的四桥臂APF样机进行算法验证,结果表明所提3D-SVPWM控制方法满足调制度约束、总谐波抑制、动态响应等关键性能指标,验证了3D-SVPWM技术应用于露天矿山电能补偿系统的可行性和有效性。更多还原

【Abstract】 Puts forward a grid four bridge arm of three-dimensional space vector pulse width modulation(3D-SVPWM) harmonic compensation method.In three phase four bridge arm APF topology structure and the mathematic model on the basis of taking classification algorithm to determine reference voltage vector in area analysis,and according to the linear combination of the intermediate variable directly to obtain the effect of base vector time.Finally,based on the on-chip system(SOC)four bridge arm of APF prototype verifies the algorithm,the results show that the proposed 3D-SVPWM control method to meet institutional constraints,total harmonic suppression,dynamic response and other key performance indicators,to verify the 3D-SVPWM technology was applied to the feasibility and effectiveness of open-pit mine power compensation system.更多还原