Research On Communication Mode Of Distribution Network Automation Communication System

With the expansion of the scale of power system,the requirement of power quality has been improved.With the development of power electronic and related scientific technology,more advanced device and equipment are widely used in power grid,which lead to power grid harmonic pollution and power circuit low power factor operation problem,becoming more prominent.The situation provides challenge to the safe operation of power supply enterprise,and also affects the economic benefits of power supply enterprise.Reactive power compensation and harmonic control is important means to ensure the quality of electric power system,therefore,what method adopted to compensate reactive power,what device selected to restrain harmonic pollution,and how to use existing technology and equipment to improve power supply quality has become an urgent problem to solve for electrical power system.In this paper,active power filter as the main research object,its working principle and classification standards are analyzed,and the advantages and disadvantages of different types are discussed.Taking a certain distribution network for instance to research the technology of system reactive power compensation and harmonic control and the application of active power filter.On this basis,the system optimization measure of reactive power compensation and harmonic control is put forward,configuration scheme should be reasonably selected based on system operation demand,and advanced equipment and technology is researched based on the existing devices,to improve the level of power supply and power quality,and promote the steady development of the grid system in China.Taking reactive power and harmonic problems in a distribution network as example,after overview on practical problems,the reactive power and harmonic of the distribution network are analyzed,and the parallel hybrid active power filter is selected for reactive power compensation and harmonic control.Measurement data after equipment investment is compared with measurement data before equipment investment.and the actual effect of equipment investment is analyzed,and the effect of active power filter oin the reactive power compensation and harmonic control is proved,which offer ref'erence for the exploration and research in the f'uture.Through comparison and analysis of various kinds of reactive power compensation and harmonic control equipment and technology,optimization,measures are put forward.In the process of practical application,reasonable selection of configuration scheme and the application of new technology and equipment can achieve the optimum results,improve the operation of electrical power system.