CAJ | 학술논문

无功补偿装置在投切过程中，开关的分合闸操作会对配电系统产生干扰，引起过电压和涌流，直接影响煤矿井下的安全生产。为进一步提高煤矿井下3300V供电系统的供电质量，提出一种基于选相投切技术的自动无功补偿装置。选相投切技术选准了最佳投切相位，可实现无功补偿装置无冲击平滑过渡投切，有效地削弱电磁暂态效应，能保证煤矿井下供电质量。该无功补偿装置经实验室检测，取得了较好的效果。
무공보상장치재투절과정중，개관적분합갑조작회대배전계통산생간우，인기과전압화용류，직접영향매광정하적안전생산。위진일보제고매광정하3300V공전계통적공전질량，제출일충기우선상투절기술적자동무공보상장치。선상투절기술선준료최가투절상위，가실현무공보상장치무충격평활과도투절，유효지삭약전자잠태효응，능보증매광정하공전질량。해무공보상장치경실험실검측，취득료교호적효과。
During the process of switching reactive power compensation device, turning on or off switch will interfere with distribution system, which causes the over voltage or surge disturb of the power system, directly influences the safety coal production. In order to improve the power supply quality of underground 3 300 V coal mine, an auto-compensator based on phase select is proposed. Switching technique of phase selecting selects the best switch phase, this can realize smooth transition without impact, effectively weak the effect of electromagnetic transient and ensure the power supply quality at underground coal mine. This device has good effect by lab testing.