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中文摘要：
为了解决启动逆变器供电蓄电池电压较低的问题,采用DC/DC反极性斩波电路来实现升压,不仅利于电压的调节,还有效减少了蓄电池的数量。在此基础上,再采用空间矢量脉冲宽度（SVPWM）控制策略来实现逆变,减少了谐波并且提高了能量转化的效率;把空间矢量分解到α、β轴平面直角坐标系,利用矩阵计算出各矢量的作用时间,简化了其求解问题;采用TMS320LF2407作为控制CPU保证了系统实时性,仿真和实验结果验证了系统的可行性。
英文摘要：
In order to overcome the low voltage problem associated with the storage battery of start-up inverter in a distributed power system, a DC/DC reverse polarity chopper circuit is proposed for increasing voltage. It can not only adjust voltage, but also reduce the number of batteries used. In addition, the space vector pulse width modulation （SVPWM） control strategy is used as the control algorithm, which reduces harmonic waves and improves efficiency in power conversion. The vector is decomposed in a, fl coordinate system. The interaction time of the vector is obtained from the matrix data table. In this case, it simplifies calculation and improves its calculation precision. At the same time, the system real-time performance is warranted. The design of digital pulse width modulation inverter system is presented in this paper. Digital Signal Processor （DSP） TMS320LF2407 is used as a control CPU in this system to improve system real-time performance. The experimental and simulation results of the proposed strategy prove its feasibility.
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