摘要
分析常规电容储能和电容后置升压储能防护方案的工作原理及适用场合。针对机载用电设备抗8 V/50 ms欠压浪涌防护电路中存在的储能电容容值高、体积大、成本高昂等问题,突破机载用电设备瞬态电压防护设计先高压后低压的设计原则限制,调整瞬态电压防护电路中过压浪涌与欠压浪涌的先后顺序,提出电容前置升压储能防护方案,并阐述了工作原理、储能电容值计算方法。经试验验证,电容前置升压储能防护方案适用于机载用电设备的欠压浪涌防护电路。
The working principle and applicable occasion of conventional capacitor energy storage and capacitor post-boost energy storage protection schemes are analyzed.In view of the problems existing in the protection circuit against 8 V/50 ms undervoltage surge of airborne electrical equipment,such as high capacitance,large volume and high cost of energy storage capacitance,the design principle of transient voltage protection for airborne electrical equipment is broken through,and the sequence of overvoltage surge and undervoltage surge in the protection circuit is adjusted.The protection scheme of capacitor pre-boost energy storage is put forward,and its working principle and calculation method of energy storage capacitance are expounded.After verification by experiment,the capacitor pre-boost energy storage protection scheme is suitable for the undervoltage surge protection circuit of airborne electrical equipment.
出处
《安全与电磁兼容》
2019年第5期73-76,101,共5页
Safety & EMC
关键词
欠压浪涌
电容储能
升压
防护
机载
undervoltage surge
capacitor energy storage
boost
protection
airborne
