电网监测设备TA取能电源性能分析与改进研究  

Performance analysis and improvement study for grid monitoring equipment power energy obtain based on TA principles

作　　者：解军[1] 张喜林[2] 卢庆港[3] 苏焕章[1] 

机构地区：[1]广州工程技术职业学院,广州510925 [2]国电吉林省电力有限公司长春供电公司,长春130021 [3]苏州热工研究院有限公司,江苏苏州215004

出　　处：《电测与仪表》2015年第11期84-89,共6页Electrical Measurement & Instrumentation

摘　　要：针对TA原理取能电源直流侧能量泄放带来的整流桥路双重功耗发热,交流侧半控型晶闸管泄放导致二次电压波动较大的缺欠,设计了一种AC-PWM有源泄放电路,以此调控高压网侧铁心开气隙TA原理取能电源的励磁电流,使工作点在磁化曲线的线性区,同时配合多重瞬态电压抑制和超级电容器储能,可为网侧监测装置提供能长期工作在低热耗状态、电压稳定、瞬时大功率能量供出的安全电源。Considering the questions of rectifier bridge dual power dissipation fever caused by DC side discharge ener- gy consumption in power supply based on TA principles, and the shortcomings of fluctuating secondary voltage caused by AC side semi-controlled thyristor discharge, an AC-PWM active bleeder circuit is designed to regulate the excita- tion current of high voltage network side power based on gapped core TA principles, thus making the operating point in the linear region of the magnetization curve. At the same time, with multiple transient voltage suppression and su- per capacitor energy storage, it can provide seeure instantaneous high power energy output work at low consumption state for long-term for network side monitoring device.

关 键 词：TA取能电源 铁心开气隙TA AC-PWM有源泄放 多重瞬态电压抑制 超级电容器 

分 类 号：TM919[电气工程—电力电子与电力传动]