可中断负荷参与节能调度的理论与方法

发布时间：2018-01-16 10:30

本文关键词：可中断负荷参与节能调度的理论与方法　出处：《湖南大学》2014年硕士论文　论文类型：学位论文

【摘要】：节能减排是应对能源危机、环境污染的有效措施之一。电力行业是主要的化石能源消耗行业，在节能减排中承担着重要的义务。信息交互技术与能量储存技术依托于智能电网的发展使需求侧负荷成为调度资源并参与调度，从而使电力调度的节能减排工作面临着新的机遇和挑战。为此，本文从节能减排的角度入手，结合我国电力行业的特征，就可中断负荷参与节能调度的理论与方法进行了研究，具体研究工作如下：首先，引入可中断负荷(Interruptible Load, IL)作为调度资源参与节能发电调度，平缓负荷曲线，降低峰谷差，以提高节能发电调度的节能效益。基于火电机组边际能耗和平均能耗的分析，阐述火电机组的能耗特性。在分析可中断负荷对节能发电调度的影响的基础上，提出边际节能指数和综合节能指数分别用以评估负荷尖峰所具有的节能潜力与整体可中断负荷调度计划的节能效益。在此基础上给出了可中断负荷调度节能效益评估流程。最后，通过仿真验证可中断负荷调度作为节能发电调度的补充提高其节能效益的可行性和有效性以及评估方法的有效性。其次，提出了逐步独立寻优思路用以制定可中断负荷参与的节能调度计划。基于第二章对节能潜力评估的分析，初步确定尖峰负荷的削减电量，进而得出差值负荷曲线将可中断负荷调度问题独立。提出了基于匹配度和单位平衡成本约束的深层遍历的优先顺序法来求解可中断负荷调度模型。根据可中断负荷调度计划对节能发电调度计划进行修正，以消除调度计划与实际负荷需求之间的差值。通过算例验证了对调度计划逐步寻优的思路和方法的可行性和有效性。最后，，充分考虑碳捕集电厂的低碳效益对节能发电调度的影响，提出了差异化调度理论，达到降低发电过程中的碳排放量的目的。对尖峰负荷时段碳捕集电厂和常规火电厂分别呈现出发电能耗高与碳排放量大的现象和原因进行了详细的阐述。本文提出了兼顾节能效益和低碳效益的可中断负荷调度方法。通过算例证明可中断负荷调度计划能够兼顾节能与低碳双重效益。本文围绕可中断负荷参与节能调度的理论与方法展开研究，所做工作对推进电力行业的节能减排工作，提高电力系统运行的经济性具有一定参考价值。
[Abstract]:Energy conservation is one of effective measures to cope with the energy crisis and environmental pollution. Electric power industry is the main consumption of fossil energy, in energy saving and emission reduction plays an important duty. The development of the information interactive technology and energy storage technology based on smart grid makes the demand side load for scheduling resources and participate in scheduling, so that the electric power dispatch energy saving and emission reduction work is facing new opportunities and challenges. Therefore, this article from the perspective of energy saving and emission reduction, combined with the characteristics of China's electric power industry, on the interruptible load participating in the theory and method of energy saving scheduling is studied, the main research work is as follows:
First of all, the introduction of interruptible load (Interruptible, Load, IL) as scheduling resources involved in energy-saving power generation dispatching, smooth load curve, reduce the peak valley difference, in order to improve the energy efficiency of energy-saving power generation dispatching. To analyze the thermal marginal energy and average energy based on energy consumption characteristics of fire motor group. Based on the energy saving effect of interruptible load power dispatch in the analysis, put forward the marginal energy saving index and comprehensive energy conservation index can interrupt the energy-saving benefit of load scheduling with energy saving potential and to assess the overall load peak is. Based on the presented assessment process interrupt load dispatching of energy efficiency. Finally, through the simulation of interruptible load scheduling as a supplement energy saving generation dispatching to improve the effectiveness of the feasibility and effectiveness of the energy-saving benefit and evaluation methods.
Secondly, put forward the optimization ideas gradually separate to make interruptible load involved in the energy saving scheduling plan. The second chapter analyzes the evaluation of energy saving potential based on the preliminary determination of the peak load power cuts, and travel will value the load curve of interruptible load scheduling problem is proposed. The independent priority method of deep traversal matching degree and unit the balance of the cost based constraint to solve the interruptible load dispatch model. According to the dispatch of interruptible load plan on energy saving generation dispatching plan revision, to eliminate the difference between the requirements of dispatching plan and actual load. Through the numerical example to verify the feasibility of the scheduling plan gradually found ideas and methods better and effective.
Finally, considering the effect of low carbon benefits of carbon capture power plant for energy-saving generation dispatching, puts forward the differentiated scheduling theory, to reduce carbon emissions in the process of generating electricity. The purpose of the phenomenon and reason of high energy consumption and carbon emissions to peak load periods of large carbon capture power plant and conventional power plant respectively. Presented in detail. This paper proposes both energy efficiency and low carbon benefits of interruptible load dispatch method. It is proved that the interruptible load scheduling plan can be both energy and low carbon benefits.
This paper focuses on the theory and method of interruptible load participating in energy saving scheduling. The work has a certain reference value for promoting the energy saving and emission reduction in power industry and improving the economic performance of power system operation.

【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM73

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