考虑多主体交互的分布式电源补贴机制研究

发布时间：2018-10-21 19:00

【摘要】：分布式电源(DG)(尤其是间歇性DG)的规模化发展,将给传统的配电网带来诸如电压越限、双向潮流、运行不确定性增加等问题,威胁配电网安全、稳定、经济运行。但是,大规模DG的接入仍然是目前实现电网可持续性发展的主要手段,在实现源网荷协同管理的情况下,具有降低网络损耗、减少负载率,减少碳排放等益处。其受益者不仅仅限于DG投资者,还包括配电公司、网络用户以及社会。因此,为了激励DG投资以促进DG的发展,多数国家设立了DG投资的激励机制,例如上网电价补贴、容量补贴等。研究包含多主体的DG补贴机制的利益流动与效果是设置补贴策略的重要参考。本文采用建模与仿真的方法,在长期框架下建立包含用户、配电公司、国家等多主体的DG与配电网模型,仿真分析和评价DG补贴机制的长期效果。本论文的主要研究工作如下:(1)阐述研究背景与意义,和目前国内外的研究现状。(2)在分析离散事件系统理论和系统动力学理论的基础上,确定DG与配电网长期演化建模的基本思路与基本方法。采用离散事件系统研究方法,研究DG与配电网系统的建模与仿真;采用系统动力学与配电网潮流计算相结合的方法描述系统的理论模型;采用事件调度的算法建立仿真模型,并采用Grid LAB-D与Matlab的联合仿真平台实现。(3)建立了DG与配电网长期演化模型。模型由3个子模型组成:DG投资容量计算模型、DG接入配网相关效益计算模型、配网层面DG补贴方法模型。(4)通过两个仿真算例,验证了模型的准确性和可用性。仿真算例之一,对DG投资决策模型的灵敏度进行仿真分析,验证模型的正确性;仿真算例之二,对本文建立的基于效果的配网DG补贴方法的长期效果进行了仿真分析,验证了该方法的有效性。
[Abstract]:The large-scale development of distributed power supply (DG) (), especially intermittent DG), will bring many problems to traditional distribution network, such as voltage overrun, bi-directional power flow and increasing operation uncertainty, which will threaten the security, stability and economic operation of distribution network. However, the access of large-scale DG is still the main means to realize the sustainable development of power grid. In the case of cooperative management of source network load, it has the benefits of reducing network loss, reducing load rate, reducing carbon emissions and so on. Its beneficiaries are not limited to DG investors, but also to distribution companies, network users and society. Therefore, in order to encourage DG investment to promote the development of DG, most countries have set up the incentive mechanism of DG investment, such as electricity price subsidies, capacity subsidies and so on. It is an important reference for setting up subsidy strategy to study the benefit flow and effect of multi-agent DG subsidy mechanism. In this paper, the modeling and simulation method is used to establish the multi-agent DG and distribution network model including users, distribution companies and the state under the long-term framework. The long-term effect of the DG subsidy mechanism is analyzed and evaluated by simulation. The main research work of this thesis is as follows: (1) the background and significance of the research, and the current research situation at home and abroad. (2) based on the analysis of discrete event system theory and system dynamics theory, The basic idea and method of long-term evolution modeling of DG and distribution network are determined. The discrete event system research method is used to study the modeling and simulation of DG and distribution network system; the theoretical model is described by combining system dynamics with power flow calculation of distribution network; the simulation model is established by the algorithm of event scheduling. The simulation platform of Grid LAB-D and Matlab is adopted. (3) the long-term evolution model of DG and distribution network is established. The model consists of three sub-models: the DG investment capacity calculation model, the DG access distribution network related benefit calculation model, and the distribution network level DG subsidy method model. (4) the accuracy and availability of the model are verified by two simulation examples. One of the simulation examples is to simulate the sensitivity of the DG investment decision model to verify the correctness of the model. The effectiveness of the method is verified.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F426.61

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