本文關鍵詞：基于直流負載特性的開關磁阻風力發(fā)電機研究　出處：《河北科技大學》2017年碩士論文　論文類型：學位論文

  更多相關文章： 風力發(fā)電 非并網風電 開關磁阻發(fā)電機 直流負載 有限元分析 最大風能跟蹤

【摘要】：風力發(fā)電是一種靈活機動、安全可靠的發(fā)電方式,但風能的波動、隨機性,使得風電并網的應用受阻,導致棄風限電現象嚴重。為避免這類現象繼續(xù)惡化,國內專家提出了非并網風電應用,即將風能直接應用于高耗能直流負載,不僅可平抑風電對電網的沖擊,也能提升風電資源的利用率,使風電成本降低。開關磁阻發(fā)電機(Switched Reluctance Generator,簡稱SRG)作為一種新型特種發(fā)電機,具有成本低、構造簡單、適應惡劣環(huán)境等特點,在風力發(fā)電領域極具潛力,相應的研究也越來越多。若將SRG用于為高耗能直流負載供電,無需逆變單元,可簡化風電設備,推動風電產業(yè)快速發(fā)展,帶來很大的經濟效益。本文首先介紹了開關磁阻發(fā)電機的發(fā)展現狀,分析了三種高耗能直流負載特性,提出將開關磁阻風力發(fā)電機用于為此類負載供電,其次針對此類負載特性確定發(fā)電機的額定參數并對電機本體進行了初步設計,以提高SRG發(fā)電效率為目的,通過MathCAD計算軟件和Ansoft Maxwell 16.0有限元仿真,對電機尺寸參數進行了計算和優(yōu)化,以及開關磁阻發(fā)電機內部電磁場的有限元分析。最后基于Matlab軟件建立了風力機模型,研究風力機的功率特性;針對開關磁阻風力發(fā)電機及其系統(tǒng)建模,研究最大風能跟蹤的幾種常規(guī)控制方法,建立基于直流負載的開關磁阻風力發(fā)電系統(tǒng)的仿真模型,結果表明開關磁阻風力發(fā)電機滿足此類負載的供電要求以及該發(fā)電系統(tǒng)的可行性。
[Abstract]:Wind power generation is a flexible, safe and reliable way, but the wind fluctuation and randomness, makes the application of wind power grid is blocked, resulting in abandoned wind power rationing phenomenon is serious. In order to avoid this kind of phenomenon continues to deteriorate, domestic experts put forward the application of non grid connected wind power, wind energy is directly applied to high energy DC load that not only can stabilize the impact of wind power on the grid, the use of wind power can also increase the rate of resources, the wind power cost is reduced. The switched reluctance generator (Switched Reluctance Generator, referred to as SRG) as a new special generator, has low cost, simple structure, adapt to the harsh environment, in the field of wind power generation very the potential, the corresponding research is more and more. If the SRG is used to load power supply for high energy consumption without DC inverter unit, can simplify the wind power equipment, to promote the rapid development of wind power industry, bring great economic benefits. This paper first introduces the development of switched reluctance generator, analyzed three kinds of high energy DC load characteristics, the Switched Reluctance Wind power generator for the load power supply, secondly, such load characteristics determine the rated parameters of the generator and the motor in the preliminary design, in order to improve the efficiency of power generation for the purpose of SRG, calculated by MathCAD software Ansoft and Maxwell 16 finite element simulation, calculation and optimization of the size of the motor parameters, and the finite element analysis of electromagnetic switch reluctance generator. Finally, based on the Matlab software of the wind turbine model is established, the power characteristics of wind turbine; modeling for switched reluctance wind generator and its system, study the maximum wind energy tracking severalconventional control method and to establish the simulation model of switched reluctance generator system based on DC load, the results show that the switch reluctance Wind turbines meet the power supply requirements of this kind of load and the feasibility of the power generation system.

【學位授予單位】：河北科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM315

【參考文獻】

相關期刊論文 前10條

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本文編號：1420416