Switching test loop for simulating harmonic current of on-load tap-changer of converter transformer

The invention discloses a switching test loop for simulating harmonic current of an on-load tap-changer of a converter transformer, which comprises a test control module, a power electronic harmonic generation module and a tap-changer switching test loop, and is characterized in that the test contro...

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Hauptverfasser: SUN JIANTAO, WANG JIANYI, XU ZHENGYU, YANG FAN, LIU XUELI, JU XIANGBO, CHENG HUANCHAO, LI PENG, SUI HUAZE, LIANG NINGCHUAN, DENG JUNYU, ZHANG SHUQI, LI JINZHONG, LI GEQI, WANG KE, LI GANG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a switching test loop for simulating harmonic current of an on-load tap-changer of a converter transformer, which comprises a test control module, a power electronic harmonic generation module and a tap-changer switching test loop, and is characterized in that the test control module is used for sending a closing or opening control signal to a power side main switch of a power system; sending a control signal to a change-over switch of the tap switch sample; the harmonic current generation module is used for generating harmonic current generated by the test transformer into various higher harmonics required by an experiment through the power electronic harmonic generation module SVG; the tap switch switching test module is used for completing switching between a moving contact of a tap switch test object and the tap contact A and the tap contact B according to the control signal of the test control module; through the tap switch waveform measurement module, a current wave passing throu