| 引用本文: | 周步祥,曹强,臧天磊,张越,彭昊宇.基于区块链的微电网双层博弈电力交易优化决策[J].电力自动化设备,2022,42(9): |
| ZHOU Buxiang,CAO Qiang,ZANG Tianlei,ZHANG Yue,PENG Haoyu.Electricity trading optimization decision for microgrid based on blockchain and two-level game[J].Electric Power Automation Equipment,2022,42(9): |
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| 摘要: |
| 建立有效、合理的微电网电力市场交易机制以促进分布式清洁能源的就地消纳，是实现微电网运营经济环保、多方共赢的重要途径。为了更好地实现微电网电力市场的运行优化，提出了基于区块链和博弈理论的微电网电力交易模型。首先，对用电主体的效用函数进行改进，以量化区块链技术对其用电福利的影响；然后，基于演化博弈理论构建需求侧各主体选择交易对象的动态过程，基于斯坦伯格(Stackelberg)博弈理论构建供需两侧间的交互机制，建立基于区块链的微电网电力市场双层博弈模型，并采用迭代算法进行求解；最后，在区块链平台上进行仿真分析，结果表明所提方法能有效达到状态均衡，得到最优交易策略，提高了微电网的总福利，实现了微电网电力市场内多主体共赢与协调发展。 |
| 关键词: 微电网 电力市场 双层博弈 状态均衡 分布式能源 区块链 Stackelberg博弈理论 |
| DOI：10.16081/j.epae.202201018 |
| 分类号:TM761 |
| 基金项目:国家自然科学基金资助项目(51907097)；四川省科技计划研究项目(2020JDRC0049) |
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| Electricity trading optimization decision for microgrid based on blockchain and two-level game |
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ZHOU Buxiang, CAO Qiang, ZANG Tianlei, ZHANG Yue, PENG Haoyu
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College of Electrical Engineering, Sichuan University, Chengdu 610065, China
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| Abstract: |
| The establishment of effective and reasonable microgrid electricity market trading mechanism to promote the local consumption of distributed clean energy is an important way to realize the economic and environmental protection and win-win situation of microgrid operation. In order to optimize the operation of microgrid electricity market, an electricity trading model of microgrid based on blockchain and game theory is proposed. Firstly, the utility function of electricity users is improved to quantify the impact of blockchain technology on its electricity consumption welfare. Then, based on the evolutionary game theory, the dynamic process of each demand-side subject choosing the trading object is constructed, and the interaction mechanism between supply and demand is constructed based on Stackelberg game theory. The two-level game model of microgrid electricity market based on blockchain is established, and the iterative algorithm is used to solve the model. Finally, the simulation analysis on the blockchain platform shows that, the proposed method can effectively achieve state equilibrium, obtain the optimal trading strategy, improve the total welfare of the microgrid, and realize the win-win and coordinated development of multi-subjects in the microgrid electricity market. |
| Key words: microgrid electricity market two-level game state equilibrium distributed energy resources blockchain Stackelberg game theory |
