提出了一种滞环电流控制双Buck-Boost逆变器拓扑。通过将两个Buck-Boost变换器的输出端反并联，恰当增加负载电流续流通路，并采用滞环电流控制技术，成功实现了对单相交流电的跟踪输出。文中详细分析了新型逆变器的工作原理和控制策略，并在MATLAB/SIMULINK平台上进行了仿真实验，该逆变器在两输入电压相等或相差较大的范围内均能实现对给定电流波形的快速跟踪，并取得较好的波形质量，仿真结果验证了新型逆变器方案的可行性。%A novel hysteresis current controlled dual Buck-Boost inverter is presented in this paper. In order to obtain an inverter which can realize single-phase alternating current tracking output, two Buck-Boost topologies are combined which are inverse parallel connected on output side. The load current reflowing circuit is added to the novel inverter, and the hysteresis current control method is used. Working principle and control strategy of the novel inverter are ana-lyzed in detail in this paper. Simulation model is built with MATLAB/SIMULINK, and simulation experiment is car-ried out. No matter the input DC voltages are equal or different, the novel inverter can track the preset current wave quickly with good output waveform. The simulation results show the feasibility of the novel inverter scheme.
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