【摘要】：風(fēng)電作為清潔的可再生能源,在能源危機(jī)和環(huán)境惡化的背景下快速發(fā)展,然而風(fēng)電具有隨機(jī)波動(dòng)性、間歇性等特點(diǎn),大規(guī)模風(fēng)電并網(wǎng)給系統(tǒng)的穩(wěn)定運(yùn)行帶來了挑戰(zhàn)。微網(wǎng)的發(fā)展可以緩解風(fēng)電并網(wǎng)的難度,通過能源互補(bǔ)特性和儲(chǔ)能設(shè)備的利用來平抑風(fēng)電并網(wǎng)的部分波動(dòng),但是會(huì)明顯降低系統(tǒng)運(yùn)行的經(jīng)濟(jì)性,所以需要改變傳統(tǒng)的調(diào)度模式,提高系統(tǒng)的靈活調(diào)度能力。需求響應(yīng)是智能電網(wǎng)重要的互動(dòng)資源,可以靈活快速響應(yīng)系統(tǒng)需求,因而成為消納風(fēng)電的重要途徑。本文研究基于需求響應(yīng)的風(fēng)電消納源荷協(xié)調(diào)調(diào)度策略,旨在通過電源側(cè)與需求側(cè)資源的雙向互動(dòng)來提高系統(tǒng)的風(fēng)電消納能力。文中針對(duì)工業(yè)用戶選用尖峰電價(jià)和可中斷負(fù)荷機(jī)制,并采用場(chǎng)景分析法來模擬風(fēng)電場(chǎng)景,對(duì)機(jī)組、儲(chǔ)能設(shè)備和柔性負(fù)荷進(jìn)行分析,考慮到風(fēng)電預(yù)測(cè)誤差的特性,建立了日前和日內(nèi)的兩階段經(jīng)濟(jì)調(diào)度模型。隨后,本文對(duì)居民用戶選用實(shí)時(shí)電價(jià)和直接負(fù)荷控制機(jī)制參與系統(tǒng)的調(diào)度,從電網(wǎng)利益、用戶滿意度、環(huán)境的角度建立了多目標(biāo)源荷協(xié)調(diào)調(diào)度模型,然后將多目標(biāo)模型模糊化,用最大化滿意度指標(biāo)法轉(zhuǎn)化成單目標(biāo)問題進(jìn)行求解。算例分析證明了所建模型的合理性和有效性。結(jié)果顯示,對(duì)不同用戶選用各自合適的需求響應(yīng)機(jī)制,電源側(cè)和需求側(cè)資源能夠進(jìn)行靈活的互動(dòng),從而提高風(fēng)電的消納能力,優(yōu)化了負(fù)荷曲線,降低了系統(tǒng)運(yùn)行成本,對(duì)節(jié)能減排有一定的推動(dòng)作用。所做研究可為今后探索需求側(cè)資源促進(jìn)風(fēng)電消納的優(yōu)化調(diào)度提供參考。
[Abstract]:Wind power, as a clean renewable energy, is developing rapidly under the background of energy crisis and environmental deterioration. However, wind power has the characteristics of random volatility and intermittent, so large-scale wind power grid brings challenges to the stable operation of the system. The development of microgrid can alleviate the difficulty of wind power grid connection, through the complementary characteristics of energy and the utilization of energy storage equipment to calm some fluctuations of wind power grid, but it will obviously reduce the economy of system operation, so we need to change the traditional dispatching mode. Improve the flexible scheduling ability of the system. Demand response is an important interactive resource of smart grid. It can respond to system demand flexibly and quickly, so it becomes an important way to absorb wind power. In this paper, a coordinated scheduling strategy based on demand response is proposed to improve the wind power absorption capacity of the system through the two-way interaction between the power supply side and the demand side resources. In this paper, the peak electricity price and interruptible load mechanism are selected for industrial users, and the scenario analysis method is used to simulate the wind power scenario, and to analyze the unit, energy storage equipment and flexible load, taking into account the characteristics of wind power prediction error. A two-stage economic scheduling model of pre-day and inter-day is established. Then, this paper selects real-time electricity price and direct load control mechanism to participate in the dispatching of the system, establishes the multi-objective source load coordination scheduling model from the aspects of power network benefits, user satisfaction and environment, and then fuzzifies the multi-objective model. The maximum satisfaction index method is used to solve the single objective problem. An example shows the rationality and validity of the model. The results show that the power side and the demand side resources can interact flexibly for different users, which can improve the wind power absorption ability, optimize the load curve, and reduce the operating cost of the system. Energy conservation and emission reduction has a certain role in promoting. The research can provide a reference for exploring the demand side resources to promote the optimal scheduling of wind power consumption in the future.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM73

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