CAJ | 학술논문

大规模电动汽车接入电网将影响电力市场的竞争结果。首先，探讨了电动汽车参与电力市场的模式。然后，通过电动汽车运营商来统一管理电动汽车群，并参与电力市场竞争，建立了计及电动汽车的电力市场古诺均衡模型。其中考虑电动汽车群作为价格接受者和价格影响者参与电力市场的情况。最后，给出的算例分析验证了上述模型方法的有效性，并表明：电动汽车群的充放电套利行为对电力市场价格具有明显的“削峰填谷”效果，能增加社会福利。当电动汽车群作为价格影响者参与电力市场时，其会持留部分充放电套利容量，因而其对市场价格的“削峰填谷”和社会福利改善效果会减弱。
대규모전동기차접입전망장영향전력시장적경쟁결과。수선，탐토료전동기차삼여전력시장적모식。연후，통과전동기차운영상래통일관리전동기차군，병삼여전력시장경쟁，건립료계급전동기차적전력시장고낙균형모형。기중고필전동기차군작위개격접수자화개격영향자삼여전력시장적정황。최후，급출적산례분석험증료상술모형방법적유효성，병표명：전동기차군적충방전투리행위대전력시장개격구유명현적“삭봉전곡”효과，능증가사회복리。당전동기차군작위개격영향자삼여전력시장시，기회지류부분충방전투리용량，인이기대시장개격적“삭봉전곡”화사회복리개선효과회감약。
Large-scale grid-integration of electric vehicles (EV) impacts on the competition in electricity market. Firstly, the mode, by which the EV participates in electricity market, is discussed; secondly, based on the mode, in which the EV aggregators are uniformly managed by EV operators and participate in the competition of electricity market, a Cournot equilibrium model of electricity market, in which the EV aggregators are taken into account and regarded as both price-taker and price-influencer, is established, and in this model the situation of EV aggregators participating in the electricity market are considered; finally, the effectiveness of above-mentioned model and method is validated by the analysis on given example, and it is shown that the arbitrage behavior of EV aggregator charging/discharging plays obvious peak load shifting role in electricity market and it can increase social welfare. When electric vehicle aggregators, which are regarded as a price-influencer, participate in electricity market, it will withhold partial of charging/discharging capacity for the arbitrage, thus its role played in both peak shaving effect on market price and increase social welfare will be weaken.