風(fēng)光儲(chǔ)微電網(wǎng)孤島運(yùn)行協(xié)調(diào)控制策略研究
[Abstract]:Microgrid is an effective means for distributed generation to connect to power grid. It can make full use of distributed energy, improve the reliability of power supply, and better meet the demand of power users, which has become the focus of research in related fields at home and abroad. In order to realize the optimization and reliable operation of the microgrid, the coordinated control strategy under the isolated island operation mode is studied in this paper, and the feasibility of the coordinated control strategy is verified by simulation research. Firstly, this paper introduces the background and significance of the research, describes the current situation of microgrid research at home and abroad, and summarizes the development of microgrid control technology. Secondly, the composing principle of the wind-energy micro-grid is summarized, and the system wind-storage capacity is designed according to the resource and user load. The working principle and characteristics of wind power subsystem, photovoltaic subsystem and energy storage subsystem are discussed. The AC/DC,DC/DC and DC/AC transformation techniques in the system topology are introduced, and the main parameters such as inductance and capacitance are designed. Thirdly, based on the basic idea of islanding operation control, the energy flow relationship between fan, photovoltaic array, battery and load in microgrid is analyzed, according to the changes of wind speed, illumination, battery working state and load demand. The operation mode of microgrid system is given, and the coordinated control strategy of isolated island operation is determined. Different subsystems adopt different control strategies according to the working state, and the wind power subsystem adopts maximum power tracking and PQ control strategy. The photovoltaic subsystem adopts maximum power tracking, load power tracking and PQ control strategy, and gives charge and discharge control strategy and V / F control strategy based on droop control for energy storage subsystem. A load automatic switching control strategy is designed for some non-critical loads. Finally, the whole simulation model of the solar microgrid system is built in Simulink, and the simulation is carried out under different charging states of the battery. The simulation results show that the energy storage subsystem can ensure the power balance of the microgrid system and maintain the stability of the voltage and frequency of the AC bus. Under the condition of the changes of wind speed, illumination, battery working state and load demand, the simulation results show that the energy storage subsystem can maintain the stability of AC bus voltage and frequency. The wind power subsystem and photovoltaic subsystem can work in their respective reasonable working mode, and the load can be automatically switched to the system, which realizes the safe and stable operation of the microgrid. The feasibility and correctness of the coordinated control strategy discussed in this paper are verified.
【學(xué)位授予單位】:內(nèi)蒙古工業(yè)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類(lèi)號(hào)】:TM727
【參考文獻(xiàn)】
相關(guān)期刊論文 前8條
1 蘇虎;曹煒;孫靜;楊道培;;基于改進(jìn)下垂控制的微網(wǎng)協(xié)調(diào)控制策略[J];電力系統(tǒng)保護(hù)與控制;2014年11期
2 楊陽(yáng);蔡旭;;基于RTDS風(fēng)光儲(chǔ)微網(wǎng)協(xié)調(diào)控制仿真研究[J];可再生能源;2014年02期
3 吳振奎;羅家濤;魏毅立;宋文雋;;光伏-儲(chǔ)能微網(wǎng)的協(xié)調(diào)控制策略[J];內(nèi)蒙古科技大學(xué)學(xué)報(bào);2013年03期
4 楊海晶;李朝暉;石光;劉中勝;宋春暉;;微網(wǎng)孤島運(yùn)行下儲(chǔ)能控制策略的分析與仿真[J];電力系統(tǒng)及其自動(dòng)化學(xué)報(bào);2013年03期
5 楊永恒;周克亮;;光伏電池建模及MPPT控制策略[J];電工技術(shù)學(xué)報(bào);2011年S1期
6 高海洲;胡國(guó)珍;;蓄電池雙向充放電控制策略研究[J];工業(yè)控制計(jì)算機(jī);2011年12期
7 齊志遠(yuǎn);王生鐵;田桂珍;;風(fēng)光互補(bǔ)發(fā)電系統(tǒng)的協(xié)調(diào)控制[J];太陽(yáng)能學(xué)報(bào);2010年05期
8 羅明;楊金明;;雙級(jí)式光伏系統(tǒng)最大功率點(diǎn)跟蹤研究[J];電力電子技術(shù);2009年05期
相關(guān)碩士學(xué)位論文 前10條
1 李響;風(fēng)光儲(chǔ)微電網(wǎng)孤島運(yùn)行控制策略研究[D];沈陽(yáng)工業(yè)大學(xué);2016年
2 武麗曉;基于FPGA的SVPWM系統(tǒng)設(shè)計(jì)及Simulink仿真[D];河北大學(xué);2014年
3 楊麗;雙級(jí)式光伏并網(wǎng)變換器控制策略研究[D];內(nèi)蒙古工業(yè)大學(xué);2014年
4 余濤;微網(wǎng)孤網(wǎng)運(yùn)行控制策略研究[D];西南交通大學(xué);2014年
5 趙潤(rùn)富;光儲(chǔ)直流微網(wǎng)控制策略的研究[D];北京交通大學(xué);2014年
6 李聰;基于下垂控制的微電網(wǎng)運(yùn)行仿真及小信號(hào)穩(wěn)定性分析[D];西南交通大學(xué);2013年
7 唐宗堯;微網(wǎng)對(duì)等控制及其運(yùn)行特性研究[D];南京理工大學(xué);2013年
8 田野;微網(wǎng)變流器控制關(guān)鍵技術(shù)研究[D];浙江大學(xué);2013年
9 曹增杰;風(fēng)光蓄交流微電網(wǎng)的控制與仿真研究[D];太原理工大學(xué);2012年
10 徐媛;直驅(qū)風(fēng)力發(fā)電系統(tǒng)控制策略的研究[D];西南交通大學(xué);2012年
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