| 引用本文: | 陈明,汪光森,马伟明.多重化双向DC-DC变换器PI滑模变结构控制策略研究[J].电力自动化设备,2008,(4):53-57 |
| .PI sliding mode control strategy for multi-channel interleaved bi-directional DC-DC converter[J].Electric Power Automation Equipment,2008,(4):53-57 |
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| 摘要: |
| 针对一种基于多重化结构的双向DC-DC变换器拓扑结构提出PI滑模变结构控制策略,实现自动跟踪参考目标电压值、单元电路电感电流间实现均流的目的。给出多重化双向DC-DC变换器的工作原理,得到双向DC-DC变换器变结构模型,对适用于多重化双向DC-DC变换器的双闭环PI滑模变结构控制策略进行了深入分析,运用等效控制理论分析了滑模变结构控制的存在和稳定条件,并利用等效输入的调制方式使变换器在定开关频率下运行。PI滑模变结构控制方案充分发挥了快速响应和鲁棒性强的优点。仿真结果证明理论分析的正确性。 |
| 关键词: 电力电子,双闭环,等效控制,滑模变结构控制 |
| DOI： |
| 分类号:TM46;TP13 |
| 基金项目:国家自然科学基金
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国家自然科学基金 |
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| PI sliding mode control strategy for multi-channel interleaved bi-directional DC-DC converter |
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CHEN Ming WANG Guangsen MA Weiming
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| Abstract: |
| PISMC(PI Sliding Mode Control) strategy is introduced to the interleaved bi - directional DC-DC converter,which automatically traces the reference voltage objective and balances the inductor currents among cell modules. The operational principle of the interleaved bi - directional DC-DC converter is presented and its variable structure model is established. The PI sliding mode control strategy suitable for it is discussed in detail. The existence of sliding - mode variable - structure control and its stability conditions are analyzed by equivalent control theory. The modulation mode of equivalent control input is used to realize the constant switching frequency of converter. The PI sliding mode control has fast response and strong robustness. Simulation results validate the correctness of the theoretical analysis. |
| Key words: power electronics,dual close - loop,equivalent control,sliding mode control |
