基于虚拟发电厂技术的插电式混合动力汽车的能量分配策略
首发时间:2015-02-02
摘要:本文主要介绍了电力市场中虚拟发电厂技术的提出以及插电式混合动力汽车对该技术在应用过程中所产生的影响。首先,介绍了虚拟发电厂提出的原因及好处,然后分析了虚拟发电厂在电力市场中所面临的的挑战,即平衡市场的监督,提出了一种双边竞拍的方法来获取虚拟发电厂在日前电力市场中的最优竞拍策略。进一步,详细解析了虚拟发电厂的结构,分析了日前电力市场和实时电力市场带来的能量供需关系,将负载需求端分为弹性和非弹性需求,指出插电式混合动力汽车是非弹性需求的主要载体,将其按照最大可容忍的延迟时间的不同进行了分类,同时设计了一个能量分配算法,在保证延迟时间的约束得到满足的条件下最小化虚拟发电厂在平衡市场中受到的惩罚。
关键词: 控制科学与工程,虚拟发电厂,日前市场,双边竞拍,插电式混合动力汽车
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Energy Regulation for PHEV based on Virtual Power Plant
Abstract:In this paper, we introduce the technology of virtual power plant(VPP) in electricity market and study the influence caused by plug-in hybrid electric vehicles when applied to this technology. First we analyse the reason why virtual power plant is put forward and the benefits of VPP. Then based on the challenges VPP has to deal with, that is, the supervise of the balance market, we propose an double auction method to get the optimal bidding strategy for VPP in the day-ahead bidding market. Furthermore, we analyse the detail structure of VPP, divide the demand side loads into elastic demands and inelastic demands and point out that plug-in hybrid electric vehicle(PHEV) is the main part of elastic demands. Then we classify the PHEVs into different types according to the difference of their delay time. Based on the energy relation between the day-ahead market and real-time market, we propose an energy allocation algorithm that can minimize the penalty cost of the VPP in the balance market while satisfying the worst-case delay time constraint.
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