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稳定的电源供给是配电网保护、测控等各类智能终端的基础,直接关系到智能配电网的可靠、稳定运行。针对当前配电网智能终端的电源形式多样化和电源波动较大等问题,研发了一种宽输入电压范围的配电网智能终端电源模块。首先介绍了电源模块的拓扑原理,进而重点分析了各关键子模块的具体电路设计。实际的测试结果表明,所设计的电源模块在多种输入电压且强干扰情况下仍能输出稳定电源。
Stable power supply is the basis of distribution network protection, measurement and control and other intelligent terminals, which are directly related to the reliable and stable operation of the smart distribution network. In view of the diversification of the power supply forms and the large power fluctuation of the intelligent terminal in the current distribution network, a distributed intelligent terminal power supply module with a wide input voltage range has been developed. Firstly, the topology principle of the power module is introduced, and then the specific circuit design of each key sub-module is analyzed emphatically. The actual test results show that the design of the power module in a variety of input voltage and strong interference can still output a stable power supply.