【摘要】：分布式電源(DG)(尤其是間歇性DG)的規(guī)�；l(fā)展,將給傳統(tǒng)的配電網(wǎng)帶來諸如電壓越限、雙向潮流、運(yùn)行不確定性增加等問題,威脅配電網(wǎng)安全、穩(wěn)定、經(jīng)濟(jì)運(yùn)行。但是,大規(guī)模DG的接入仍然是目前實(shí)現(xiàn)電網(wǎng)可持續(xù)性發(fā)展的主要手段,在實(shí)現(xiàn)源網(wǎng)荷協(xié)同管理的情況下,具有降低網(wǎng)絡(luò)損耗、減少負(fù)載率,減少碳排放等益處。其受益者不僅僅限于DG投資者,還包括配電公司、網(wǎng)絡(luò)用戶以及社會(huì)。因此,為了激勵(lì)DG投資以促進(jìn)DG的發(fā)展,多數(shù)國家設(shè)立了DG投資的激勵(lì)機(jī)制,例如上網(wǎng)電價(jià)補(bǔ)貼、容量補(bǔ)貼等。研究包含多主體的DG補(bǔ)貼機(jī)制的利益流動(dòng)與效果是設(shè)置補(bǔ)貼策略的重要參考。本文采用建模與仿真的方法,在長期框架下建立包含用戶、配電公司、國家等多主體的DG與配電網(wǎng)模型,仿真分析和評(píng)價(jià)DG補(bǔ)貼機(jī)制的長期效果。本論文的主要研究工作如下:(1)闡述研究背景與意義,和目前國內(nèi)外的研究現(xiàn)狀。(2)在分析離散事件系統(tǒng)理論和系統(tǒng)動(dòng)力學(xué)理論的基礎(chǔ)上,確定DG與配電網(wǎng)長期演化建模的基本思路與基本方法。采用離散事件系統(tǒng)研究方法,研究DG與配電網(wǎng)系統(tǒng)的建模與仿真;采用系統(tǒng)動(dòng)力學(xué)與配電網(wǎng)潮流計(jì)算相結(jié)合的方法描述系統(tǒng)的理論模型;采用事件調(diào)度的算法建立仿真模型,并采用Grid LAB-D與Matlab的聯(lián)合仿真平臺(tái)實(shí)現(xiàn)。(3)建立了DG與配電網(wǎng)長期演化模型。模型由3個(gè)子模型組成:DG投資容量計(jì)算模型、DG接入配網(wǎng)相關(guān)效益計(jì)算模型、配網(wǎng)層面DG補(bǔ)貼方法模型。(4)通過兩個(gè)仿真算例,驗(yàn)證了模型的準(zhǔn)確性和可用性。仿真算例之一,對(duì)DG投資決策模型的靈敏度進(jìn)行仿真分析,驗(yàn)證模型的正確性;仿真算例之二,對(duì)本文建立的基于效果的配網(wǎng)DG補(bǔ)貼方法的長期效果進(jìn)行了仿真分析,驗(yàn)證了該方法的有效性。
[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.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：F426.61

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