电网监测设备TA取能电源性能分析与改进研究

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。

PerformanceSAnalysisSandSImprovementSStudySforSGridSMonitoringSEquipmentSPowerSEnergySObtainSBaseSonSTASPrinciples

Considering the questions of rectifier bridge dual power dissipation fever caused by DC side discharge energy consumption in power supply base on TA principles, and the shortcomings of fluctuating secondary voltage caused by AC side semi-controlled thyristor discharge, design an AC-PWM active bleeder circuit, by regulate the excitation current of high voltage network side power base on gapped core TA principles, So make the operating point in the linear region of the magnetization curve, same time with multiple transient voltage suppression and super capacitor energy storage, and can provide secure instantaneous high power energy output work at low consumption state for long-term for network side monitoring device.