Research And Application Of Reactive Power Compensation In County Distribution Network

With the development of society,the production of electricity in county area has been greatly increased,while the development speed of distribution network and distribution network power supply quality and economic developed degree obviously do not match,since distribution network has no more perfect planning,coupled with some load of their own low power factor,and the load is dispersed,some of the lines exist roundabout power supply,cross power supply,line,power supply radius is too large and so on,distribution transformers are also due to urban and rural planning and civil coordination and other reasons,layout of the location can not achieve the ideal layout,Therefore,the agricultural network voltage quality,line loss is large.With the improvement of people's living standard,the vision of a better life is more and more strong,and the demand for voltage quality is getting higher.Reactive power optimization and energy saving analysis of distribution network is a significant project,China's future socio-economic development of the major challenges will be the resource environment constraints and rapid economic growth between the increasing contradiction between the power industry,energy loss reduction work for the primary energy consumption,environmental protection,The sustained and healthy development of economy is of particular importance.For power supply enterprises,distribution network reactive power optimization can significantly improve the voltage quality,improve the customer experience,enhance the service level of enterprises and the future of the distribution market in the open situation of competitiveness.This paper intends to study the mechanism of reactive power compensation in distribution network,the causes of distribution network loss and the effect and method of reactive power optimization on reducing line loss and improving voltage quality.Through the effect of reactive power compensation on the voltage quality,the effect of reactive power compensation on the active loss,reactive power compensation,reactive power compensation capacity selection and the allocation of reactive power compensation device,the paper puts forward some concrete measures,develop the reactive power compensation of distribution network,Analyze the actual utility of reactive power compensation equipment after operation.in view of the problems existing in the conventional reactive power compensation device and the insufficiency of function,which can not meet the requirement of reactive compensation in actual production,Jimo company adopts the MEC device in the low-voltage side bus of the distribution transformer(Power quality integrated optimization device of distribution network to carry out reactive power transformation,the device uses the electronic phase shifting technology to balance the three-load automatic balancing scheme,through technical research,can effectively solve the current low voltage distribution network reactive power,voltage fluctuations,three-phase imbalance and so on.