用户低负荷状况下无功补偿问题探讨

摘要:

针对用户的功率因数会在用户低负荷生产情况大幅度下降的情况，分析了现有无功补偿计算方式及其在低 负荷情况下的工况，提出了以阶梯型设计补偿电容及配置合理投切装置为基础，并探讨了此时智能投切控制器所需 的控制逻辑和功能需求，使得用户功率因数在用户低负荷情况下仍然能够保持在较高水平。

Abstract:

Aiming at the situation that the power factor of users will decrease greatly when the users are in a low load condition， the existing calculation methods of reactive compensation and its working condition of low load are analyzed． A new method based on the design of stepped compensating capacities and the reasonable on － off instrument is proposed，the control logic and the functions required by the intelligent on － off control equipment are discussed，which can keep the power factor in a higher level when the users are in a low load condition．