Research On Qingyou River10kV Dispersive Reactive Compensation

The reactive power compensation, referred to as reactive power compensation, from the electronic power supply system to enhance the role of the grid power factor, reduce the loss of power transformers and transmission lines, to improve the efficiency of power supply, improve the supply environment. The reasonable choice compensation device, you can do to minimize the loss of the network to improve the quality of the grid. Conversely, if the selection or improper use may cause the power supply system, voltage fluctuations, harmonics increases and many other factors. The previous reactive power compensation system to compensate for the distribution lines is not able to achieve a good compensation effect, reverse reactive power towards the power supply terminal measurement point compensation phenomenon, this line will not only cause some damage will also result in voltage instability and damage electrical equipment. In addition, the controller is often not able to accurately grasp the variation of the load line, and thus can not be timely determine the compensation capacitor cast, cut.Based on the above, the basic principles of this article from the reactive compensation, the analysis of the relationship between the power factor of the circuit parameters, the compensation capacitance and the selection of parameters were calculated, summed up the basic methods of reactive power compensation and its impact on the quality of power supply, reactive power compensation control strategy. Thyristor operating characteristics of the electronic switching element and its main parameters analyzed the working principle of the thyristor, calculation and selection of the of thyristor series technology and its parameters. Thyristor switched capacitor bank of the main circuit wiring method of analysis, discusses the characteristics of the thyristor pulse trigger mode.Finally, Switching for different main circuit thyristor connection, switching to good effect.10kV grid using TSC static reactive power compensation device, can not be achieved reactive adjusted continuously, but through refinement of the classification of the capacitor bank can achieve fast, accurate, no impact, no over-voltage reactive power compensation. TSC reactive power compensation effect is very obvious visible through simulation experiments.And then put forward a new distribution lines distributed without the Power Optimization compensation system, at different points of the system and the traditional compensation system is reflected in the capacitor compensation device with its control unit separated, using the GPRS wireless data transmission unit contact, so the the device is suitable for remote control reactive power compensation, and automatically cast cut. Introduced in order to select the optimal compensation position based on genetic algorithm for global optimization control algorithm, based on real-time optimization analysis of the trend of the distribution system, and determine the system reactive power compensation equipment switching strategy, considering the running costs of the equipment.