【作者】 陈锐；

【导师】 彭建春；

【作者基本信息】 湖南大学 ， 电力系统及其自动化， 2005， 硕士

【摘要】 电力市场是当今电力工业发展的必然趋势,它引起了电力工业产权结构的变革,同时引发了一系列新的技术问题。传输阻塞在实际的电网运行中是不可避免的。对输电阻塞成本进行合理分摊,能促进输电网的有效利用,从而减少阻塞的发生,保证输电网的安全和可靠。目前常用的阻塞费用分摊方法是节点电价法和费用分摊法。节点电价法往往会导致交易盈余;费用分摊法不能提供明显的经济信号,计算比较繁琐。而且,由于电力系统的非线性,费用分摊法分摊阻塞费用绝对公平是不存在的。 本文首先介绍博弈论的概念,通过合作博弈解的理论,将经济学的知识应用到阻塞费用分摊问题中,使得阻塞费用的分摊方法具有经济学意义。针对双边交易本文提出了基于Shapley值的阻塞费用分摊方法。选取输电系统中的各双边交易作为阻塞费用分摊的对象。通过取消输电网络中的某些交易形成不同的交易联盟,直接将阻塞费用一步分摊给各双边交易。理论分析和6节点输电系统的仿真计算表明,用Shapley值的方法分摊阻塞费用具有唯一性、单调性和加和性的特点,能提供明显的经济激励信号。 最后,本文提出采用Bilateral Shapley值来分摊阻塞费用。Bilateral Shapley值是Shapley值的一种改进方法。基于Bilateral Shapley值的阻塞费用分摊结果不但具有Shapley值的优点,并且该方法所需联盟组合数较少,大大简化了Shapley值的计算过程,是一种工程计算时Shapley值的近似解。更多还原

【Abstract】 Electricity market is the inevitable trend of electric industry in developing, which results in the change of the conventional power system in organization, and causes a series of new technique problems. It is unavoidable to congestion in power transmission. In order to guarantee the security and reliably of the power transmission network, congestion cost need to be allocated to consumers complying with economic efficiency requirements to make effective use of the network and reduce congestion happen. Typically, this cost is allocated using Nodal price and Uplift method. Nodal price results in merchandising surplus; Uplift method fails to provide efficient price sign to customers and has the drawbacks of computational complexity. In addition, because of nonlinear of electric power system, Uplift method is not an absolutely fair congestion cost allocation method.This paper introduces the concept of game theory at first. Based on cooperative game theory, a method complying with the knowledge of economics is proposed to allocation the congestion cost. And make the allocation of congestion cost have economics meaning. This paper presents a Shapley values based, one-step transmission congestion cost allocation for bilateral model, by abolishing some bilateral transactions to form various coalitions. Theoretical analysis and 6 bus example system case study show that the proposed method comply with requirements of economic efficiency and can give more accurate and equitable signals to customers due to the characters of exclusion, monotony, and additivity.At last, the bilateral Shapley value of cooperation game theory is proposed to allocate the congestion cost, to avoid the exponential complexity of Shapley value calculation by reducing the number of coalitions. It is one of improvement method of Shapley value. The computation challenges in applying Shapley value to large scale problems are addressed. The Bilateral Shapley value not only has the advantage of Shapley value but also overcomes the combination explosion in Shapley’s coalition formation.更多还原