發(fā)布時(shí)間：2018-05-11 04:26

  本文選題：650MW水輪機(jī)組 + 水電機(jī)組調(diào)節(jié)系統(tǒng)��； 參考：《華北電力大學(xué)》2014年碩士論文

【摘要】：水電機(jī)組調(diào)節(jié)系統(tǒng)是一個(gè)水、機(jī)、電相互影響、相互制約的復(fù)雜非線性系統(tǒng)，它的基本任務(wù)是根據(jù)電網(wǎng)頻率的變化實(shí)時(shí)調(diào)節(jié)機(jī)組有功功率的輸出，維持機(jī)組轉(zhuǎn)速在額定范圍內(nèi)，，來保證電能頻率的穩(wěn)定，其控制品質(zhì)直接關(guān)系到水電站和與之相連的整個(gè)電力系統(tǒng)的安全運(yùn)行、電能質(zhì)量。隨著大量大型機(jī)組的投運(yùn)，水電站在電網(wǎng)中扮演著越來越重要的角色，這對(duì)水電站調(diào)節(jié)系統(tǒng)的動(dòng)態(tài)品質(zhì)有了更高的要求。由于常用的水輪機(jī)線性模型不適用于大波動(dòng)、大容量的水輪機(jī)組，建立穩(wěn)定性能更好、適應(yīng)能力更強(qiáng)的非線性模型對(duì)水力發(fā)電研究顯得尤為重要。 本文介紹了目前水電機(jī)組調(diào)節(jié)系統(tǒng)的仿真測(cè)試研究現(xiàn)狀，針對(duì)云南片區(qū)電網(wǎng)以大水電機(jī)組為主的特點(diǎn)，選擇云南某水電站650MW混流式機(jī)組作為建模對(duì)象。采用機(jī)理建模的方法在Matlab/Simulink工具箱下搭建出該水電站調(diào)節(jié)系統(tǒng)的非線性模型。并分別對(duì)空載頻率擾動(dòng)、負(fù)荷擾動(dòng)以及甩負(fù)荷工況進(jìn)行仿真，仿真結(jié)果和現(xiàn)場(chǎng)工況曲線進(jìn)行對(duì)比，驗(yàn)證了建立的水輪機(jī)非線性模型的正確性、可靠性。 最后，本文分析了相關(guān)參數(shù)變化對(duì)調(diào)節(jié)系統(tǒng)動(dòng)態(tài)響應(yīng)品質(zhì)的影響，選取粒子群算法（PSO）對(duì)水輪機(jī)非線性模型進(jìn)行優(yōu)化，提高了模型動(dòng)態(tài)品質(zhì)，使其能更好的跟蹤、反應(yīng)現(xiàn)場(chǎng)實(shí)際情況。
[Abstract]:The regulation system of hydropower unit is a complex nonlinear system with the interaction of water, machine and electricity. Its basic task is to adjust the output of active power according to the change of power network frequency in real time, and to maintain the speed of the unit in the rated range. To ensure the stability of power frequency, its control quality is directly related to the safe operation and power quality of hydropower station and the whole power system connected with it. With the operation of a large number of large units, hydropower stations play an increasingly important role in the power network, which has a higher demand for the dynamic quality of the hydropower station regulation system. Because the commonly used linear model of hydraulic turbine is not suitable for large fluctuation, it is very important to establish a nonlinear model with better stability and better adaptability for the study of hydroelectricity generation. This paper introduces the present situation of simulation and test of hydropower unit regulation system. According to the characteristics of large hydropower units in Yunnan power grid, the 650MW mixed flow unit of a hydropower station in Yunnan Province is selected as the modeling object. The nonlinear model of the regulation system of the hydropower station is built under the Matlab/Simulink toolbox by the method of mechanism modeling. The simulation results of no-load frequency disturbance, load disturbance and load rejection are compared with the field working state curve. The correctness and reliability of the established nonlinear model are verified. Finally, this paper analyzes the influence of the change of parameters on the dynamic response quality of the regulating system, selects PSO (particle swarm optimization algorithm) to optimize the nonlinear model of the turbine, improves the dynamic quality of the model and makes it track better. The actual situation of the reaction site.
【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)】：TV734

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 魏守平;伍永剛;林靜懷;;水輪機(jī)調(diào)速器與電網(wǎng)負(fù)荷頻率控制 (一)水輪機(jī)控制系統(tǒng)的建模及仿真[J];水電自動(dòng)化與大壩監(jiān)測(cè);2005年06期

2 黃莉;李咸善;袁喜來;;基于Simulink的水電機(jī)組模塊化建模與仿真[J];水電自動(dòng)化與大壩監(jiān)測(cè);2007年05期

3 魏守平;;水輪機(jī)調(diào)節(jié)系統(tǒng)的MATLAB仿真模型[J];水電自動(dòng)化與大壩監(jiān)測(cè);2009年04期

4 高慧敏,劉憲林,徐政;水輪機(jī)詳細(xì)模型對(duì)電力系統(tǒng)暫態(tài)穩(wěn)定分析結(jié)果的影響[J];電網(wǎng)技術(shù);2005年02期

5 李華;史可琴;范越;牛拴保;;電力系統(tǒng)穩(wěn)定計(jì)算用水輪機(jī)調(diào)速器模型結(jié)構(gòu)分析[J];電網(wǎng)技術(shù);2007年05期

6 武誠;徐政;潘武略;張靜;;原動(dòng)機(jī)與調(diào)速器建模和參數(shù)辨識(shí)的新進(jìn)展[J];電網(wǎng)技術(shù);2007年S1期

7 楊小東;董宸;盧文華;文勁宇;;基于遺傳算法的水輪發(fā)電機(jī)組調(diào)速系統(tǒng)參數(shù)辨識(shí)[J];繼電器;2006年01期

8 劉昌玉，魏守平;水輪機(jī)調(diào)速器的多調(diào)節(jié)模式及相互切換[J];水電能源科學(xué);1994年04期

9 吳東平;論云南水電的戰(zhàn)略價(jià)值和地位[J];水力發(fā)電學(xué)報(bào);2002年04期

10 魏守平,盧本捷;水輪機(jī)調(diào)速器的PID調(diào)節(jié)規(guī)律[J];水力發(fā)電學(xué)報(bào);2003年04期

本文編號(hào)：1872414