电力市场环境下计及AGC的机组组合问题

【作者】 叶剑斌；

【导师】 黄民翔；

【作者基本信息】 浙江大学 ， 电力系统及其自动化， 2003， 硕士

【摘要】 随着电力工业市场化改革的深入开展，维持电力系统的经济可靠性运营显得越来越重要。研究的重点也逐步转向了对辅助服务的有效获取和定价。因此，传统的只针对主电能市场上的机组组合优化问题已经不能适应电力市场环境下的需要。 首先，AGC最重要的辅助服务之一，并且AGC市场与主能量市场具有很强的耦合性，因此，在提交机组的开停机计划时，应该考虑到所提交的机组可能同时承担AGC的调节功能以维持系统的安全可靠性运行； 其次，AGC服务本身就是由在线机组来提供，为了防止在线机组事后(即在实时调度中需要AGC时)通过滞留容量来牟取暴利，系统调度人员在决定机组的提交计划时应该考虑所提交发电出力的机组提供AGE服务的能力和成本。 本文正是基于上述两点考虑，提出了一种计及AGC调节容量的机组组合优化模型。模型中考虑了AGC的上调、下调费用和机组的AGC调节容量约束，从而达到系统购电总成本最小化。对于该模型的实现，本文分别提出了动态规划法和拉格朗日松弛法来求解该问题的解决方案，并且编制了相应的软件进行仿真以说明了本文所提模型和方法的有效性。更多还原

【Abstract】 With the restructuring of power industry, it is more important to maintain system security and reliability while economically efficient transactions are accommodated in the power system. Meanwhile, restructuring has sharpened the appetite of generation owners for more efficient operation achieved by submitting auxiliary services as well as energy component. As a result, traditional unit commitment, which only is formulated as the scheduling of energy component production of electric power generating units over a daily to weekly time horizon in order to accomplish some objective, has been hard employed to provide available solution in such environment.As one kind of auxiliary services, AGC service, which be dispatched to sustain the security of power system, should be considered in the procedure of unit committed for its strong coupling schedule and dispatch with energy components.The purpose of this thesis is to explore the technology and needs of the next generation of computer models for aiding unit commitment decision to accommodate the competitive electricity market. In model, the fare of AGC regulation be accounted for in the objective function to achieve the least total purchase cost and the problem solution respects generator constraints, such as ramp rate limits and AGC regulation capacity constraints. The solution approaches that have been proposed in the work with this thesis, and which are widely used at present, are dynamic programming and Lagrange relaxation. The corresponding software is developed to simulate the case to demonstrate the effective of the model and the arithmetic.更多还原