本文關(guān)鍵詞：電力系統(tǒng)緊急情況下的風(fēng)電集群有功功率控制研究　出處：《華北電力大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 風(fēng)電集群 緊急功率控制 風(fēng)電出力分配 風(fēng)電場(chǎng)累計(jì)功率切除量 綜合評(píng)價(jià)指標(biāo) 風(fēng)光水火集群 快調(diào)序列 切機(jī)序列 PSS/E

【摘要】：隨著風(fēng)電技術(shù)的快速發(fā)展和裝機(jī)容量的不斷增加,規(guī)�；L(fēng)電集群并網(wǎng)將對(duì)電力系統(tǒng)的安全、穩(wěn)定、經(jīng)濟(jì)運(yùn)行產(chǎn)生諸多影響。在此背景下,本文首先以實(shí)際風(fēng)電集群為例進(jìn)行風(fēng)速擾動(dòng)和大干擾下的風(fēng)電集群特性仿真；在此基礎(chǔ)上,通過分析常規(guī)火電廠的有功功率緊急控制手段,提出了適用于風(fēng)電集群有功功率控制手段和風(fēng)電集群緊急切功率分配算法,并對(duì)所提分配算法進(jìn)行了定量比較；然后研究了包括風(fēng)電集群、光伏集群和常規(guī)電源的風(fēng)光水火集群有功功率緊急控制策略,進(jìn)而提出了基于快調(diào)序列和切機(jī)序列的有功功率切除量分配算法。具體來說,主要工作如下： (1)以實(shí)際風(fēng)電集群為例,對(duì)變風(fēng)速和大擾動(dòng)下的風(fēng)電集群特性做了仿真和分析。 (2)分析了風(fēng)電場(chǎng)緊急功率切除的方式,進(jìn)而提出了基于切場(chǎng)組合、基于風(fēng)電場(chǎng)切機(jī)、基于切場(chǎng)與場(chǎng)內(nèi)切機(jī)相結(jié)合和基于風(fēng)電場(chǎng)累計(jì)有功功率切除量排序的4種不同的緊急切功率分配算法；其次以分配偏差量、風(fēng)電場(chǎng)切場(chǎng)數(shù)等5個(gè)指標(biāo)的加權(quán)組合構(gòu)建綜合評(píng)價(jià)指標(biāo)以評(píng)估各算法的性能；最后以某實(shí)際風(fēng)電集群為例,驗(yàn)證所提算法的有效性。分配結(jié)果和綜合評(píng)價(jià)指標(biāo)值表明4種分配算法都有各自的適用范圍,其中基于風(fēng)電場(chǎng)累計(jì)有功功率切除量排序的方法綜合指標(biāo)值最小,適用范圍最大。 (3)給出了風(fēng)光水火集群有功功率緊急控制原則、控制方式及其特性,在假定所有常規(guī)機(jī)組都是直調(diào)機(jī)組的條件下,給出基于快調(diào)序列(機(jī)組快關(guān)氣門、切機(jī)風(fēng)電場(chǎng)或切機(jī)光伏電站)和切機(jī)(常規(guī)機(jī)組切機(jī)、風(fēng)電場(chǎng)切場(chǎng)或光伏電站切站)序列的風(fēng)光水火集群有功功率的分配方法。其中快調(diào)序列和切機(jī)序列的確定方法有兩種。最后以某實(shí)際風(fēng)光水火集群為例,驗(yàn)證所提算法的有效性。
[Abstract]:With the rapid development of wind power technology and the continuous increase of installed capacity, large-scale wind power cluster will have a lot of impact on the security, stability and economic operation of power system. Firstly, the simulation of wind power cluster characteristics under wind speed disturbance and large disturbance is carried out by taking the actual wind power cluster as an example. On this basis, by analyzing the emergency control methods of active power in conventional thermal power plants, the active power control methods for wind power clusters and the emergency power allocation algorithm for wind power clusters are proposed. The proposed allocation algorithm is compared quantitatively. Then, the active power emergency control strategy of wind power cluster, photovoltaic cluster and conventional power supply is studied. Furthermore, the active power excising quantity allocation algorithm based on klystron sequence and cutting machine sequence is proposed. Specifically, the main work is as follows: 1) taking actual wind power cluster as an example, the characteristics of wind power cluster under variable wind speed and large disturbance are simulated and analyzed. (2) the paper analyzes the mode of emergency power removal in wind farm, and then puts forward the method based on tangential field combination and wind farm cutting machine. Based on the combination of the tangent field and the in-field cutting machine, and based on the order of the cumulative active power removal amount of the wind farm, four different kinds of emergency power allocation algorithms are proposed. Secondly, a comprehensive evaluation index is constructed to evaluate the performance of each algorithm by the weighted combination of five indexes, such as distribution deviation, wind farm tangent field number and so on. Finally, taking an actual wind power cluster as an example, the validity of the proposed algorithm is verified. The allocation results and the comprehensive evaluation index values show that each of the four allocation algorithms has their own scope of application. The method based on the sorting of cumulative active power of wind farm has the smallest comprehensive index value and the largest applicable range. The principle, control mode and characteristics of active power emergency control are given. Under the assumption that all conventional units are direct-regulated units, the fast adjusting sequence is given. Cutting machine wind farm or cutting machine photovoltaic power station) and cutting machine (conventional unit cutting machine). There are two methods to determine the active power of the wind farm cutting field or photovoltaic power plant (PV power station) cluster. Finally, a practical example is given to the actual wind water fire cluster with two methods to determine the fast adjustment sequence and the cutting machine sequence. The validity of the proposed algorithm 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】：2014
【分類號(hào)】：TM614

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本文編號(hào)：1433717