Control of DC Microgrid for Electrical Vehicles(EV s) Wireless Charging
| Autor: | Xiao Zhaoxia, Zhang Xian, Yang Qingxin, Shangguam Xudong |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Battery (electricity)
business.industry Computer science 020209 energy 020208 electrical & electronic engineering Photovoltaic system Electrical engineering 02 engineering and technology Inductive charging Maximum power point tracking Power Balance 0202 electrical engineering electronic engineering information engineering Microgrid business Uninterruptible power supply Voltage |
| Zdroj: | 2018 China International Conference on Electricity Distribution (CICED). |
| Popis: | This paper introduces a demonstration of an islanded DC microgrid for electrical vehicles (EVs) wireless charging. The DC microgrid includes photovoltaic panels (PV), small wind turbine (WT), battery units (BUs) and a wireless charger. The planning, control strategy, laboratory system and the demonstration of the microgird are presented. Firstly, the system capacity, configuration and topology are designed and the voltage level is analyzed by using the energy balance and power balance method. Meanwhile, the electricity of the secondary system is planned and an uninterruptible power supply (UPS) is designed to supply them reliably. Secondly, the control methods of the DC microgrid composed of PV, WT, BU, UPS and wireless charger is investigated. The master-slave control strategy is used. The battery bidirectional DC/DC converter is responsible to stabilize DC bus voltage. The challenge is the fast response of the wireless charger as a power electronic loads in an islanded microgrid. Both PV and WT are controlled using maximum power point tracking (MPPT). Then wireless charger and electromagnetic shielding device is designed and the EV charging device is reformed. Lastly, the laboratory system and the demonstration results are shown. The system realizes the EVs wireless and fast charging with the renewable energy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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