科研之友
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摘要
In order to provide a cost-effective solution for accommodating the increasing electric vehicles (EVs) and maximizing their benefits to the grid, a novel EV intelligent integrated station (IIS) making full use of ex-service batteries, is proposed in this paper. It first presents the framework and characteristics of IISs by describing its components, including a dispatching center, multipurpose converter devices, a charge exchange system, and an echelon battery system. The grid status, batteries exchanging requests, and energy capacity of IISs are monitored timely to offer inputs for its optimal operation. The concept of generalized energy is thereby introduced to systematically understand the energy/power flow between IISs and EVs, as well as between IISs and power grids. Then, a novel charging and discharging control strategy for managing EVs is presented. Compared with existing approaches, the proposed control strategy can offer peak load shifting when meeting EV battery charging/exchanging requests. The experimental results demonstrate the effectiveness and benefits of the control strategy in terms of providing peak load shifting for the power grid. This integrated station concept can maximize the benefits of EVs, and the retired batteries more flexibly and effectively.
- 出版日期2017-3
- 单位上海交通大学
