模块化大功率电解电源的研究

发布时间：2018-09-11 13:50

【摘要】：模块化大功率电解电源需模块间并联输出大电流,由于电源模块的差异化或偶然发生故障,会引起系统功率降低甚至整个系统崩溃。目前电解电源多采用模拟电路的控制方式,该控制方式对外通信不方便,控制方式不灵活,不能满足电源的高精度与高稳定性的要求。在此提出一种基于CAN总线通讯的最大电流均流法。该方法将传统模拟电路中用到的最大电流法与CAN总线通讯控制相结合,通过CAN总线通信控制的方式来实现电源的均流,实现了电源的数字化控制。并针对电源效率优化问题,设计了一种基于辅助电流源网络的电源拓扑结构,提高了电源的效率。在仿真和实验中电源模块实现了软开关,提高了电源的效率,基于CAN总线通讯的最大电流法实现了并联系统的自动均流,且均流效果良好。
[Abstract]:The modularized high power electrolytic power supply needs to output large current in parallel between modules. Because of the difference of the power supply module or accidental failure, the power of the system will be reduced or even the whole system will collapse. At present, the control mode of analog circuit is mostly used in electrolytic power supply. The control mode is not convenient to communicate with other countries and the control mode is inflexible, which can not meet the requirements of high precision and high stability of power supply. In this paper, a maximum current sharing method based on CAN bus communication is proposed. This method combines the maximum current method used in the traditional analog circuit with the CAN bus communication control, realizes the power supply current sharing through the CAN bus communication control, and realizes the digital control of the power supply. Aiming at the optimization of power supply efficiency, a power supply topology based on auxiliary current source network is designed to improve the efficiency of power supply. In the simulation and experiment, the power module realizes the soft switch and improves the efficiency of the power supply. The maximum current method based on CAN bus communication realizes the automatic current sharing of the parallel system, and the current sharing effect is good.
【作者单位】：北方工业大学电气与控制工程学院;
【分类号】：TN86

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