共查询到19条相似文献,搜索用时 91 毫秒
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对理想状态下的电力市场框架进行了描述,对市场主体、典型市场以及电力市场节点电价和解决拥塞管理的金融工具-金融输电权进行了介绍,提出了建立电力市场的几个阶段,对研究电力市场的理论和运作具有一定的借鉴作用。 相似文献
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介绍了四川电网发电侧电力市场技术支持系统的体系结构,数据交换流程,各子系统的功能描述、具体实现和主要特点。 相似文献
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基于XML的电力市场数据交换 总被引:1,自引:0,他引:1
提出基于XML的电力市场数据交换方案,描述了电力市场XML标记符号与数据模型,分析了数据库和XML文档之间的转换规则,介绍了两者之间转换所需要的处理方法及实现过程,并对电力市场中的XML文档流转要点做了说明。 相似文献
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我国新一轮电力体制改革要求还原电力商品属性、建立市场化机制,但具体如何实施还在争论或讨论中。目前美国的电力市场运转良好,其电力体制改革的经验和方法值得我们借鉴。本文介绍美国电力市场的缘起,分析能量管理系统(EMS)在美国电力市场发展和电力市场管理系统中的作用,讨论电力市场的基本原理以及美国电力市场的形成和实现方法,为我国电力市场的发展和实现提供参考。 相似文献
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采用SSH(Secure Shell)和WebSphere提出并实现了一种通用的适合于电力市场的安全高速通信通道的方案。文中所有电力市场的信息均采用基于可扩展置标语言(XML)的简单对象存取协议(SOAP)语言进行描述,保证了通信系统与电力市场其他子系统对接的柔软性和扩充性。整个通信系统采用基于Java的Java 2平台企业版(J2EE)和Java消息服务(JMS)技术实现。所采用的中间件产品(包括SSH,WebSphere)、信息描述方式(包括XML,SOAP)和实现技术(包括J2EE,JMS)适用于任何操作系统。实验结果表明,该通信系统可实现电力市场实时数据最大4次/s的刷新,厂站端与交易中心之间的一次实时交易往复过程最大不超过2 s,完全能够满足电力市场实时数据通信的要求。 相似文献
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首先介绍了美国新英格兰电力市场备用市场的设计,然后提出一种在联营型电力市场中能量和备用调度的联合优化新模型,该模型是一个不可微优化模型,能够模拟备用机组的机会成本,因此比文献中报道的模型更加全面,完整,文中将联合优化模型转化为等价的混合整数优化模型,并建议运用分支定界法求解,针对不同的市场方案推导了相应的能量和备用的边际成本,讨论了联合优化问题的解的求解方法和最优解的多值性,此外,文中还讨论了一种常见的联合优化计算方法,并指出其启发性质,研究表明一个包含机会费用的市场设计从结构上讲非常复杂,从计算上讲也非常有挑战性,这些研究结果为实现美国联邦能源管制委员会所倡导的主辅市场联合优化设计奠定了理论基础。 相似文献
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Cheung K.W. Shamsollahi P. Sun D. Milligan J. Potishnak M. 《Power Systems, IEEE Transactions on》2000,15(3):968-974
Since the Federal Energy Regulatory Commission's (FERC) order no. 888 has mandated the establishment of unbundled electricity markets in the newly deregulated environment, competitive bidding of ancillary services, along with bidding of energy, becomes increasingly important. In this paper, an optimization-based framework for solving a multi-commodity electricity market dispatch problem is presented. In compliance with New England Power Pool (NEPOOL) Market Rules and Procedures, a hybrid dispatch method which combines the sequential dispatch method with the joint dispatch method is proposed to solve the energy and ancillary dispatch problem for ISO New England (ISO-NE). Numerical results on a 6-unit test system and the 324-unit ISO-NE system are included 相似文献
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With the deregulation of electric power systems, market participants are facing an important task of bidding energy to an independent system operator (ISO). This paper presents a model and a method for optimization-based bidding and self-scheduling where a utility bids part of its energy and self-schedules the rest as in New England. The model considers ISO bid selections and uncertain bidding information of other market participants. With appropriately simplified bidding and ISO models, closed-form ISO solutions are first obtained. These solutions are then plugged into the utility's bidding and self-scheduling model which is solved by using Lagrangian relaxation. Testing results show that the method effectively solves the problem with reasonable amount of CPU time 相似文献
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The primary goal of this work is to investigate the basic energy and reserve dispatch optimization (cooptimization) in the setting of a pool-based market. Of particular interest is the modeling of lost opportunity cost introduced by reserve allocation. The authors derive the marginal costs of energy and reserves under a variety of market designs. They also analyze existence, algorithm, and multiplicity of optimal solutions. The results of this study are used to support the reserve market design and implementation in ISO New England control area. 相似文献
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In this paper, a hybrid model of fuzzy clustering and ANN (Artificial Neural Network) is proposed for electricity price forecasting. Due to the complicated behavior of electricity price in power markets, market players are interested in maximizing profits while minimizing risks. As a result, more accurate models are required to deal with electricity price forecasting. This paper proposes a new method that makes use of fuzzy clustering preconditioned GRBFN (Generalized Radial Basis Function Network) to provide more accurate predicted prices. Fuzzy clustering plays a key role to prevent the number of learning data from decreasing at each cluster. GRBFN is one of efficient ANNs to approximate nonlinear systems. Furthermore, a modified GRBFN model is developed to improve the performance of GRBFN with the use of DA (Deterministic Annealing) clustering for the parameters initialization and EPSO (Evolutionary Particle Swarm Optimization) for optimizing the parameters of GRBFN. The proposed method is successfully applied to real data of ISO New England, USA. 相似文献
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Ancillary service markets are a very important part of the standard market design and are under development or implementation on a centralized basis in major U.S. electricity markets. This paper presents the market clearing framework for the co-optimized real-time energy-reserve market that has been developed and implemented in the ISO New England (ISO NE). In this co-optimized market clearing model, reserve products are procured on a zonal basis to satisfy the first and the second contingency protection criteria required by the ISO NE's real-time operations for both the entire area and typical import-constrained areas. The proposed zonal reserve model is derived from simulating each contingency event in the predefined reserve zones. Differing from standard industrial practices, the proposed zonal reserve model recognizes reserve deliverability for nested reserve zones and allocates the zonal total transfer capability between energy and reserves in an economic way. Numerical examples for a two-zone system are presented to demonstrate the validity of this modeling technique. 相似文献
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Morteza Kheradmandi Mehdi EhsanRené Feuillet Nouredine Hadj-Saied 《Electric Power Systems Research》2011,81(1):1-9
This paper investigates various approaches to relieve the transient stability constraint in restructured power systems. The approaches adopted fall into two broad categories: those based on eliminating the constraint in the least-cost way and those based on eliminating with the least possible rescheduling. The latter group can, on the other hand, emerge in the form of a pool-protected policy in which the bilateral contracts are rescheduled to maintain the stability or in the form of a contract-protected policy in which the realizable bilateral contracts are maximized while minimizing the rescheduling in pool market. Transient energy function (TEF) method is used as a tool to calculate the sensitivity of energy margin to the variations in the magnitude of generation and load. The effectiveness of the method is illustrated by case studies on Western System Coordinating Council (WSCC) 3-machine 9-bus power system and on the 10-machine 39-bus New England test system and the results are compared. The results are also verified by time domain simulations. 相似文献