矿用动态电压恢复器优化组合补偿策略

基金项目:

国家自然科学基金资助项目(51477040)

详细信息

Research of optimized compensation strategy for mine-used dynamic voltage restorer

Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China

摘要: 针对长时间电压跌落下矿用动态电压恢复器直流链路电容储能利用率较低的问题，提出了一种从完全补偿法到同相补偿法的优化组合补偿策略，即2种补偿策略之间平滑缓慢过渡，从而抑制跌落时刻的负载电压畸变，降低动态电压恢复器注入电压幅值，延长动态电压恢复器的补偿时间。实验结果表明，该策略在平衡和不平衡电压跌落条件下均能正确可靠地补偿电网电压跌落。
- 动态电压恢复器 /
- 电压跌落 /
- 相位跳变 /
- 同相补偿 /
- 完全补偿
Abstract: To solve low utilization of DC-link capacitor of mine-used dynamic voltage restorer under long voltage sag, an optimized compensation strategy was proposed, namely a smooth transition between pre-sag compensation and in-phase compensation, so as to restrain aberration of load voltage during the sag, reduce amplitude of injected voltage of dynamic voltage restorer and increase compensation time. The experimental results verify feasibility and reliability of the strategy in balanced and unbalanced grid voltage sag.
- dynamic voltage restorer /
- voltage sag /
- phase jump /
- in-phase compensation /
- complete compensatio

1.	程玮玮，吴瑞. 大功率三电平PWM整流器无权值系数预测控制. 工矿自动化. 2021(01): 81-86 . 本站查看
2.	马汇海，汪超，孟彦京. 一种三相电动机的两相交直交变频电路及其控制方法. 实验室研究与探索. 2020(10): 25-28+59 . 百度学术