Reactive power compensation and high-frequency distortions correction in Metro

摘要

The paper reviews research data of reactive power compensation for Metro electric power substations. According to comparative analysis of Metro, it is necessary to compensate reactive power in order to reduce its the negative consequences, which are also presented. Reactive power compensation ensures compliance with the condition of reactive power balance, contributes to the reduction of electricity losses in electrical grids, increases their throughput, allows for voltage regulation through the use of compensating devices, etc. The control system for suggested device has been developed; in addition mathematic simulation has been carried out as a result of which power factor of substation has been increased to 0.97-0.99.