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发明授权
CN107093956B 基于高增益隔离型双向DC-DC变换器的分析优化方法 有权

基于高增益隔离型双向DC-DC变换器的分析优化方法
摘要：
本发明提出了一种基于高增益隔离型双向DC‑DC变换器的分析优化方法。包括：步骤1，分别建立降压模式和升压模式下的两种开关状态的状态空间描述；步骤2，基于状态空间描述得到变换器在两种模式下的状态平均方程；步骤3，在状态平均方程引入小信号扰动，推导出两种模式下的传递函数。从而便于控制器的设计，实现DC‑DC变换器电压的精准控制，稳定输出，达到预期的控制效果。
摘要（英）：

The invention provides an analysis optimization method based on a high gain isolated bidirectional DC-DC converter. The method comprises the steps of (1) establishing state space description of two switch states in a step-down mode and step-up mode, (2) obtaining the state average equation of the converter in two modes based on state space description, and (3) introducing small signal disturbance at the state average equation, and deducing a transfer function in the two modes. Thus the design of a controller is facilitated, the precise control of DC-DC converter voltage is realized, the output is stabilized, and a desired control effect is achieved.

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