Research on Key Technology of Uninterrupted Operation Load Without Power Outage in Low Voltage Transformer Area of Mobile Generator

doi:10.16628/j.cnki.2095-8188.2021.12.015

Abstract

Abstract:

This paper describes the application status of 0.4 kV emergency power generator vehicle to ensure the power supply,the load outage and operational defects caused by the operation detection of distribution network are described in detail.A fast switching method of uninterrupted operation load without power outage in lowvoltage transformer area of mobile generator is proposed. It uses high response excitation driving technology of the change-over switch,and through the DSP high-speed sampling to predict the action time of grid connection conversion accurately.After the grid-connection,instantaneous detection at grid-connection time and instantaneous disassembly technology are used to ensure the load in the case of without power outage to achieve a smooth transition between the mains and generators.After the field operation test,it shows that this method is more efficient,safe and reliable for the operation and inspection of distribution network without power outage.

Key words: emergency generator, non-power outage operation, quasi-synchronous phase prediction, fast grid connection and disconnection

CLC Number:

TM732

CHEN Chao, DING Yimin, JIN Guozhong, WU Xiangyuan, BAO Weifeng, BAI Huadong. Research on Key Technology of Uninterrupted Operation Load Without Power Outage in Low Voltage Transformer Area of Mobile Generator[J]. LOW VOLTAGE APPARATUS, 2021, 0(12): 85-89.

Figures/Tables 8

References 8

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