風光互補路燈控制系統(tǒng)的研究
發(fā)布時間：2019-01-30 17:31
【摘要】：目前我國正處在經(jīng)濟高速發(fā)展的關(guān)鍵時期,若能實現(xiàn)走“清潔能源”這條道路,大力開發(fā)風能、太陽能,可有效的緩解能源供應緊張問題。本文就是在這種背景條件下,研究環(huán)保而無污染的風光互補發(fā)電技術(shù),并應用于風光互補路燈上,起到了既節(jié)能又環(huán)保的效果。 由于風光互補路燈蓄電池充放電及燈具控制技術(shù)已日趨成熟,本文針對風光互補路燈中的離網(wǎng)式獨立風光互補發(fā)電控制技術(shù)進行研究,主要完成以下兩方面的研究工作。 首先,針對該系統(tǒng)離網(wǎng)式光伏發(fā)電系統(tǒng)光伏陣列輸出電壓、電流具有非線性,造成系統(tǒng)輸出功率不易控制的問題,采用了“增量電導法”控制策略實現(xiàn)了對光伏發(fā)電系統(tǒng)輸出最大功率點的跟蹤控制,計算機仿真表明,該控制策略使系統(tǒng)輸出功率達到了最優(yōu)。 其次,針對該系統(tǒng)離網(wǎng)式風力發(fā)電機輸出電壓不穩(wěn)定,輸出功率不易控制的問題,采用轉(zhuǎn)速雙閉環(huán)控制方法和基于定步長轉(zhuǎn)速跟蹤搜索法的新型槳距角控制策略,計算機仿真表明,該控制策略實現(xiàn)了對風力發(fā)電機輸出最大功率點跟蹤控制,解決了發(fā)電機輸出電壓不穩(wěn)定的問題,使輸出的功率最優(yōu)最好。 最后,對未來“獨立風光互補發(fā)電技術(shù)”進行了展望。
[Abstract]:At present, our country is in the critical period of rapid economic development. If we can realize the road of "clean energy" and vigorously develop wind energy and solar energy, we can effectively alleviate the shortage of energy supply. Under this background, this paper studies the environment friendly and non-pollution complementary wind power generation technology, and applies it to the landscape complementary street lamp, which has the effect of saving energy and protecting environment. As the charging and discharging technology and lamp control technology of solar complementary street lamp have become more and more mature, this paper studies the off-grid independent wind complementary power generation control technology in the wind complementary street lamp, and mainly completes the following two aspects of research work. Firstly, the output voltage and current of the photovoltaic array of the off-grid photovoltaic system are nonlinear, which makes the output power of the system difficult to control. The "incremental conductance method" control strategy is used to realize the tracking control of the maximum output power point of the photovoltaic power generation system. The computer simulation shows that the control strategy makes the output power of the system optimal. Secondly, aiming at the problem that the output voltage of the off-grid wind turbine is unstable and the output power is not easy to control, a new pitch angle control strategy based on the fixed step speed tracking search method and the speed double closed loop control method is adopted. Computer simulation shows that the control strategy realizes the maximum power point tracking control of wind turbine output, solves the problem of generator output voltage instability, and makes the output power optimal. Finally, the future of independent wind complementary power generation technology is prospected.
【學位授予單位】：長春工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TM315;TM914.4;TU113.666
[Abstract]:At present, our country is in the critical period of rapid economic development. If we can realize the road of "clean energy" and vigorously develop wind energy and solar energy, we can effectively alleviate the shortage of energy supply. Under this background, this paper studies the environment friendly and non-pollution complementary wind power generation technology, and applies it to the landscape complementary street lamp, which has the effect of saving energy and protecting environment. As the charging and discharging technology and lamp control technology of solar complementary street lamp have become more and more mature, this paper studies the off-grid independent wind complementary power generation control technology in the wind complementary street lamp, and mainly completes the following two aspects of research work. Firstly, the output voltage and current of the photovoltaic array of the off-grid photovoltaic system are nonlinear, which makes the output power of the system difficult to control. The "incremental conductance method" control strategy is used to realize the tracking control of the maximum output power point of the photovoltaic power generation system. The computer simulation shows that the control strategy makes the output power of the system optimal. Secondly, aiming at the problem that the output voltage of the off-grid wind turbine is unstable and the output power is not easy to control, a new pitch angle control strategy based on the fixed step speed tracking search method and the speed double closed loop control method is adopted. Computer simulation shows that the control strategy realizes the maximum power point tracking control of wind turbine output, solves the problem of generator output voltage instability, and makes the output power optimal. Finally, the future of independent wind complementary power generation technology is prospected.
【學位授予單位】：長春工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TM315;TM914.4;TU113.666
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