胡石阳,李晋,金楠,刘国荣.双向AC/DC容错变换器模型预测直接功率控制[J].电测与仪表,2019,56(22):89-94. Hu Shiyang,Li Jin,Jin Nan,Liu Guorong.Model predictive direct power control of bidirectional AC/DC fault-tolerant converter[J].Electrical Measurement & Instrumentation,2019,56(22):89-94.
双向AC/DC容错变换器模型预测直接功率控制
Model predictive direct power control of bidirectional AC/DC fault-tolerant converter
The fault-tolerant operation ability of bidirectional AC / DC converter can effectively improve its reliability. Considering the DC-side voltage regulation and the fault-tolerant operation control of bidirectional converter, a two-stage converter structure that the double active bridge (DAB) cascades the fault-tolerant three-phase four-switch structure (FSTP) and the four vectors model predictive power control strategy are proposed. The DAB is used to increase the DC side voltage when the switching devices have fault. The FSTP structure is used to achieve fault-tolerant operation with phase fault. Comparing with the traditional converter without fault-tolerant structure, the proposed structure and control method can increase the DC voltage and realize fault-tolerant operation, which ensure that bidirectional AC / DC converter can operate reliably with phase fault. The simulation and experimental comparisons with traditional converter verify the effectiveness and reliability of the proposed structure and strategy.
