一种交直流敏感型剩余电流保护器的研制  

Development of an AC-DC Sensitive Residual Current Device

作　　者：王尧[1] 李奎[1] 郭志涛[1] 刘灿[1] 邹旭[1] 牛峰[1] 张潍[1] 

机构地区：[1]河北工业大学,天津300130

出　　处：《低压电器》2012年第9期9-13,共5页Low Voltage Apparatus

基　　金：国家自然科学基金资助项目(51077038);河北省自然科学基金资助项目(E2010000072)

摘　　要：提出一种基于AVR ATmega32单片机的磁调制式交直流敏感型剩余电流保护器(即B型剩余电流保护器),采用基于信号频率和波形的补偿算法对剩余电流的有效值进行补偿,以提高检测和保护的准确性。试验表明,该剩余电流保护器满足标准要求,能够实现对1 kHz内的正弦交流以及脉动直流(其最大基波频率为500 Hz)或平滑直流剩余电流的有效保护。An MCU-based AC-DC sensitive residual current device （ B type RCD） on the basis of magnetic modulation principle was presented. ARMS compensation algorithm for residual currents based on power frequency and waveform of residual currents was used to improve the detecting precision. It is verified that the RCD can satisfy the requirement of corresponding standards and be able to provide an effective protection against residual currents including residual sinusoidal alternating currents with frequencies up to 1 kHz, residual pulsating currents within a frequency range of 0 - 500 Hz and residual smooth direct currents.

关 键 词：B型剩余电流保护器 磁调制 剩余电流检测 波形补偿 

分 类 号：TM564.8[电气工程—电器]