论文部分内容阅读
针对大规模电动汽车(Plug-in Electric Vehicle,PEV)无序充放电对配电网的安全与经济运行带来的严重负面影响,提出了一种基于时空双尺度的电动汽车充放电优化调度方案。将电动汽车配电系统按照电压等级分层,然后将电动汽车充放电站按照其所在的地域进一步划分为若干个基层区域。区域基层代理机构在时间和空间尺度上与辖区内每辆电动汽车建立通信信道,采集整理电动汽车状态与充放电需求信息,并根据系统调度目标执行调度计划,实现电动汽车充放电的优化调度。根据现有研究并借鉴相关标准,从提高电动汽车与配电网互动效率方面提出了电动汽车用户信用等级的解决方案。仿真结果表明,该方法所设计的电动汽车充放电优化模式不仅具有较好的泛化性能,而且具有削峰填谷的工程应用价值。
In view of the serious negative impact of disorderly charging and discharging of Plug-in Electric Vehicle (PEV) on the safety and economic operation of distribution network, a scheduling optimization scheme based on space-time and two-scale for EV charging and discharging is proposed . The distribution system of electric vehicles will be stratified according to the voltage level, and then the EV charging and discharging station will be further divided into a number of grassroots areas according to the area where it is located. The regional grass-roots agencies set up communication channels with each electric vehicle within the jurisdiction on time and space scales, collect and sort out information on the state and charge-discharge requirements of electric vehicles, and implement the scheduling plan according to the system scheduling goals to achieve the optimal scheduling of electric vehicles. According to the existing research and drawing on the relevant standards, a solution to the credit rating of EV users is proposed in terms of improving the interaction efficiency between EVs and distribution networks. The simulation results show that the optimization model of electric vehicle charging and discharging designed by this method not only has better generalization performance but also has the engineering application value of cutting peak filling.