Harmonic Suppression And Elimination In Electric Vehicle Charging Station

Energy and environment have become the world attract everybody’s attentionproblems, the life of people cannot do without energy, but the use of large amounts ofenergy and cause serious environment pollution. For a country to develop, to beharmonious, it must be the contradiction between energy and the environment to solve.China’s energy consumption, and continued growth, so the problem of environmentalpollution is very serious, will ultimately affect the sustained economicdevelopment.So must reduce the use of oil, this kind of energy-saving emissionreduction, to lay a good foundation for the development of the national economy.Electricity can replace petroleum, electric cars no emissions, no pollution, thiscontradiction can be solved fundamentally. In recent years more and more mature inthe car, while the oil gradually according to shortage of potential, electric vehiclehas the advantage of very significant, in each big automobile manufacturersworldwide have started producing electric vehicles. From the viewpoint ofenvironmental protection, energy-saving emission reduction, the developmentdirection of the automotive industry is the inevitable result of electric vehicle.China State Grid Corp as a key state-owned enterprises related to national energysecurity and the lifeline of the national economy, to promote electric vehicles play animportant role in the development of our country. The development of electricvehicles is the China State Grid Corp to implement the scientific outlook ondevelopment, the implementation of the national energy development strategy, toparticipate in building a resource conserving, environment-friendly society, a majorstrategic initiatives to fulfill their social responsibilities, and has significant socialbenefits.At present, the China State Grid Corp has carried out a lot of work in thedevelopment of electric vehicles. The development and popularization of electricvehicles cannot do without the construction of the charging station, charging charger station in the non-linear load, the harmonics pollution to the power grid isa.Therefore, has the practical significance to the charging station harmonic problems.This paper systematically analyzes the related problems of chargingstations generate harmonics in charge at work. Using the simulation model forcharging station, in the course of the experiment, change the key parameters in themodel various: supply voltage, line length, transformer, charger and powersource number detection of harmonic, change size, power supply to thecharger and charging station construction to provide the theory basis and technologysupport. According to the various influence factors, gives some harmonic for EVcharging station. And the charging station harmonic characteristics, putsforward improving measures to the charging station of electric energy quality.