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对60°非正交坐标系和45°旋转坐标系这两种快速空间矢量脉宽调制算法(space vector pulse width modulation， SVPWM)进行比较，目的是为工程技术人员在这两种SVPWM算法之间选择时提供一个理论和实践的参考。提出了一种新的针对这两种方法的任意多电平调制通用算法，只需角度和调制比两个信号就能够决定最终的矢量开关顺序。理论分析结果表明，45°旋转坐标系 SVPWM 比60°非正交坐标系SVPWM更简单，计算量小，更适合于数字实现。两种算法都以硬件的方式在FPGA上用VHDL语言编程实现，并对实现的复杂度和逻辑资源占用这两方面进行比较。仿真结果表明，45°旋转坐标系下的SVPWM算法比60°坐标系下的SVPWM算法在简洁性和资源占用方面具有明显的优势。最后，在一个三电平中点箝位型逆变器上对所提的两种通用算法进行了实验验证。“,”A comparison is made between two fast space vector pulse width modulation (SVPWM) algorithms: the 60° non-orthogonal coordinate SVPWM and the 45° rotating coordinate SVPWM. New general methods of the 60° and 45° algorithms for any level SVPWM are also provided, which need only the angle and the modulation depth to generate and arrange the final vector sequence. The analysis shows the latter offers better flexibility with fewer calculations and is well suited for digital implementation. Both methods are implemented in a field programmable gate array (FPGA) with very high speed integrated circuit hardware description language (VHDL) and compared on the basis of implementation complexity and logic resources required. Simulation results show the overwhelm in advantages of the 45° rotating coordinate SVPWM in brevity and efficiency. Finally, the experimental test results for a three-level neutral-point-clamped (NPC) inverter are presented.