【摘要】：我國風(fēng)電并網(wǎng)量逐年增加,風(fēng)電出力的隨機(jī)性與波動(dòng)性給電網(wǎng)調(diào)峰帶來的壓力與日俱增,傳統(tǒng)的水火電調(diào)度模式已經(jīng)不能適應(yīng)風(fēng)電并網(wǎng)的需求,整合荷源兩側(cè)的調(diào)峰資源,進(jìn)行荷-源協(xié)調(diào)控制,成為提高風(fēng)電消納水平的新途徑,因此,研究基于提高風(fēng)電消納的荷-源協(xié)調(diào)控制策略具有重要理論和現(xiàn)實(shí)意義。本文首先概述了含風(fēng)電電力系統(tǒng)調(diào)度運(yùn)行控制策略的國內(nèi)外研究現(xiàn)狀,研究了不同時(shí)間尺度下的風(fēng)電場群出力特性。大規(guī)模風(fēng)電接入電網(wǎng)后使得負(fù)荷峰谷差和調(diào)峰需求增大,導(dǎo)致常規(guī)電源調(diào)峰困難及棄風(fēng)嚴(yán)重現(xiàn)象,亟需高載能負(fù)荷參與調(diào)峰,以提高電網(wǎng)調(diào)峰能力及減少棄風(fēng)。本文接下來對可連續(xù)調(diào)節(jié)、可離散調(diào)節(jié)與可中斷高載能負(fù)荷運(yùn)行特性進(jìn)行分析,挖掘其調(diào)節(jié)潛力建立了各類高載能負(fù)荷的響應(yīng)控制數(shù)學(xué)模型。在此基礎(chǔ)上研究了日級(jí)時(shí)間尺度下的荷-源協(xié)調(diào)控制電量優(yōu)化模型和小時(shí)級(jí)時(shí)間尺度下的荷-源協(xié)調(diào)控制功率優(yōu)化模型。隨后,提出了日級(jí)和小時(shí)級(jí)時(shí)間尺度的荷-源協(xié)調(diào)控制模式,然后結(jié)合日前荷-源協(xié)調(diào)控制電量優(yōu)化模型和日內(nèi)荷-源協(xié)調(diào)控制功率優(yōu)化模型,分別形成基于提高風(fēng)電消納電量的日級(jí)時(shí)間尺度荷-源協(xié)調(diào)控制策略和基于提高風(fēng)電消納功率的日內(nèi)小時(shí)級(jí)時(shí)間尺度荷-源協(xié)調(diào)控制策略。最后基于甘肅河西電網(wǎng),仿真驗(yàn)證了本文所提出的基于提高風(fēng)電消納的荷-源協(xié)調(diào)控制策略的可行性和有效性。
[Abstract]:The wind power in our country increases year by year, the randomness and volatility of wind power output bring increasing pressure to the peak shaving of the power grid, the traditional hydro-thermal power dispatching mode can not adapt to the demand of wind power grid connection, and integrate the peak-shaving resources on both sides of the load source. Load-source coordinated control is a new way to improve the level of wind power dissipation. Therefore, it is of great theoretical and practical significance to study the charge-source coordinated control strategy based on improving wind power consumption. In this paper, the research status of dispatching and operation control strategy for wind power system with wind power is summarized, and the output characteristics of wind farm group under different time scales are studied. After the large-scale wind power is connected to the power grid, the load peak-valley difference and peak-shaving demand increase, which results in the difficulty of peak-shaving and serious wind-shaving in conventional power supply. Next, the operational characteristics of continuous regulation, discrete regulation and interruptible high-load are analyzed, and the mathematical models of response control of all kinds of high-load energy load are established by excavating its regulating potential. On the basis of this, the power optimization model of charge-source coordinated control at the daily time scale and the charge-source coordinated control power optimization model on the hour-scale time scale are studied. Then, the charge-source coordination control model of day-level and hour-scale time scale is proposed, and then combined with the current-day charge-source coordinated control power optimization model and the Geneva-Netherlands-source coordinated control power optimization model. The time-scale charge-source coordination control strategy based on day-scale time scale and the inter-day hourly-scale charge-source coordinated control strategy based on increasing wind power dissipation power are formed respectively. Finally, based on Gansu Hexi Power Grid, the feasibility and effectiveness of the proposed load-source coordinated control strategy based on improving wind power dissipation are verified by simulation.
【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

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 葛佳運(yùn);;考慮風(fēng)電消納的電力系統(tǒng)源荷協(xié)調(diào)多目標(biāo)優(yōu)化方法[J];通信電源技術(shù);2018年07期

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本文編號(hào)：2453057