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

  更多相關(guān)文章： 風電集群 緊急功率控制 風電出力分配 風電場累計功率切除量 綜合評價指標 風光水火集群 快調(diào)序列 切機序列 PSS/E

【摘要】：隨著風電技術(shù)的快速發(fā)展和裝機容量的不斷增加,規(guī)�；L電集群并網(wǎng)將對電力系統(tǒng)的安全、穩(wěn)定、經(jīng)濟運行產(chǎn)生諸多影響。在此背景下,本文首先以實際風電集群為例進行風速擾動和大干擾下的風電集群特性仿真；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,提出了適用于風電集群有功功率控制手段和風電集群緊急切功率分配算法,并對所提分配算法進行了定量比較；然后研究了包括風電集群、光伏集群和常規(guī)電源的風光水火集群有功功率緊急控制策略,進而提出了基于快調(diào)序列和切機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)以實際風電集群為例,對變風速和大擾動下的風電集群特性做了仿真和分析。 (2)分析了風電場緊急功率切除的方式,進而提出了基于切場組合、基于風電場切機、基于切場與場內(nèi)切機相結(jié)合和基于風電場累計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、風電場切場數(shù)等5個指標的加權(quán)組合構(gòu)建綜合評價指標以評估各算法的性能；最后以某實際風電集群為例,驗證所提算法的有效性。分配結(jié)果和綜合評價指標值表明4種分配算法都有各自的適用范圍,其中基于風電場累計有功功率切除量排序的方法綜合指標值最小,適用范圍最大。 (3)給出了風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)機組都是直調(diào)機組的條件下,給出基于快調(diào)序列(機組快關(guān)氣門、切機風電場或切機光伏電站)和切機(常規(guī)機組切機、風電場切場或光伏電站切站)序列的風光水火集群有功功率的分配方法。其中快調(diào)序列和切機序列的確定方法有兩種。最后以某實際風光水火集群為例,驗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.
【學位授予單位】：華北電力大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM614

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本文編號：1433717