一种用于低压电器试验的交流恒流源设计  

An AC Constant Current Source for Low-voltage Electrical Appliance Testing

作　　者：王永康 孙晖[1] 杨佳楠 李一鸣 季瑞松[1] 刘辰昊 

机构地区：[1]浙江大学电气工程学院,浙江杭州310000

出　　处：《工业控制计算机》2024年第8期161-162,164,共3页Industrial Control Computer

摘　　要：针对当前用于低压电器试验的交流恒流源成本高、精度低、输出电流范围小等问题,设计了一种用于低压电器试验的交流恒流源。控制部分采用基于ARM内核的STM32芯片实现SPWM波形的数字化生成算法,另外采用了模糊准PR控制算法。经实践表明,该恒流源输出电流精度高、速度快、范围广,能够输出交流有效值为1~120 A的电流。In response to the high cost,low accuracy,and limited output current range of the AC constant current source currently used for low-voltage electrical appliance testing,this paper presents a design for an AC constant current source specifically for low-voltage electrical appliance testing.The control section utilizes an STM32 chip based on the ARM core to implement a digital generation algorithm for SPWM waveform.Additionally,a fuzzy PR control algorithm is employed.Through practical experiments,it has been demonstrated that this constant current source offers high output current accuracy,fast speed,and a wide range,capable of delivering alternating currents with effective values ranging from 1 A to 120 A.

关 键 词：低压电器 恒流源 准PR 模糊控制器 

分 类 号：TM52[电气工程—电器]