The Research Of Electrical Vehicle In Unparking Supply System Based On The Multistage Guide Mode

Energy shortage, environmental problems have become a popular research topic currently,and the energy consumption of automobile, exhaust emissions are closely related to environmental problems and energy shortage. Electrical vehicles as the represent of new energy vehicles, which are zero emissions, low carbon, no pollution, has been recognized as the main reform and development direction of automobile industry in twenty-first Century. At present, due to the electric car’s battery life problems,which need for frequent charging, parking charge take a lot of time. As a real time power supply scheme of Electric vehicles, people pick up the unparking real-time dynamic power supply. The wireless power supply technology for Electric vehicle is to supply real time power to the driving electric vehicle. People want electrical vehicle less even without using battery, the primary guide rail directly supply power to the motor to drive the vehicle. As the remote real-time wireless power supply mode, in order to ensure the efficiency and robustness, usually use multistage guide serial working mode, based on time division access method. This paper will study from the following several aspects of the above questions:① Establish equivalent circuit model of electrical vehicle in unparking supply system. Then according to the model to analysis the influence which caused by load changes.On the basis of analysis, design location detection method to judge whether electrical vehicles arrived at the rail switch position.② According to the position detection strategy to design electrical vehicle in unparking supply system multistage guide rail parallel switching scheme and tandem switching scheme. The simulation and experiment results verify the feasibility of the multistage guide rail parallel switching scheme, performance reached a basic system design goals.But at the switching moment, the electrical vehicles will loss voltage briefly.And tandem switching scheme has many problems,whose performance can’t reached a basic system design goals.③ The plan of electrical vehicle in unparking supply system is a multi object, multi variable, multi constraint nonlinear optimization problem.So we should establish the nonlinear programming mathematical model, and introduce the particle swarm optimization algorithm to rational plan the guide rail layout, device capacity, voltage grade.At the same time,we need to consider the equipments’ construction cost, operation cost, maintenance cost.Lastly we must find a method making the operation cost minimizing.