考虑阻塞分摊和分配公平的微网群竞争交易机制

doi:10.11930/j.issn.1004-9649.202306011

摘要/Abstract

摘要：

节点边际电价机制难以保证微网真实报价，可能导致市场效率损失。同时考虑到输电线路阻塞情况频发，提出一种考虑阻塞分摊和分配公平的微网群竞争交易机制。首先，基于Vickrey-Clarke-Groves（VCG）理论，提出一种促进微网真实报价的支付模型；其次，由于VCG类机制的固有问题是收支不平衡，且系统存在阻塞加剧了这一不平衡情况，提出一种基于责任分摊法的系统收支不平衡量处理方法，按照微网对阻塞的影响程度将阻塞成本分摊，并将除去阻塞成本的剩余系统收支不平衡量均摊给消费型微网；最后，仿真结果充分验证了所提机制的有效性。

关键词: 价值公平分配, 激励相容, 阻塞成本

Abstract:

As the locational marginal pricing mechanism is hard to guarantee the real bidding of productive microgrids, the market efficiency may be decreased as a result. Considering the frequent occurence of transmission line conges-tion, this paper proposes a competitive trading mechanism for microgrid group considering congestion cost allo-cation and fair distribution. Based on the Vickrey-Clarke-Groves (VCG) theory, a payment model that promotes the real bidding of microgrids is proposed. Since the inherent problem of the VCG mechanism is the budget im-balance, and the existence of congestion in the system worsens this imbalance, this paper proposes a method to deal with the system budget imbalance based on the responsibility sharing method, in which the congestion cost is shared according to the impact of microgrid on the congestion, and the remaining system budget imbalance excluding the congestion cost is shared among consumption-oriented microgrids. The simulation results have ful-ly verified the effectiveness of the proposed mechanism.

Key words: fair benefit distribution, incentive compatibility, congestion cost

时珊珊, 冯然, 方陈, 刘舒, 邓莉荣, 王皓靖, 陈浦. 考虑阻塞分摊和分配公平的微网群竞争交易机制[J]. 中国电力, 2024, 57(4): 182-189.

Shanshan SHI, Ran FENG, Chen FANG, Shu LIU, Lirong DENG, Haojing WANG, Pu CHEN. A Competitive Trading Mechanism for Microgrid Group Considering Congestion Cost Allocation and Fair Distribution[J]. Electric Power, 2024, 57(4): 182-189.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202306011

https://www.electricpower.com.cn/CN/Y2024/V57/I4/182

图/表 11

图 1 微网群竞争交易模型

Fig.1 Microgrid group competitive trading model

图 2 收支不平衡量分摊流程

Fig.2 Budget imbalance allocation process

图 3 阻塞成本分摊流程

Fig.3 Congestion cost allocation process

图 4 LMP机制与本文所提机制实施流程

Fig.4 The implementation flowchart of LMP mechanism and the pro-posed mechanism

图 5 网络拓扑结构

Fig.5 Network topology

图 6 相对净利润（以真实报价为基准）

Fig.6 Relative net profit (based on real bidding)

图 7 生产型微网承担阻塞成本后的逐时净利润

Fig.7 Hourly net profit of the productive microgrid after undertaking the congestion cost

表 1 系统最小发电成本

Table 1 Minimum generation cost of the system

阻塞情况		成本/元
有阻塞		65 058.6
无阻塞		64 939.3

表 2 有阻塞系统的收入和支出

Table 2 The income and expense of the system with congestion

来源		数值/元
支出		87 479.1
收入		81 232.1

图 8 $\, \beta $值变化

Fig.8 $\, \beta $ Value variation

图 9 阻塞费用

Fig.9 Congestion cost

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