定子雙繞組異步電機風(fēng)力發(fā)電系統(tǒng)仿真研究

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摘要：定子雙繞組異步風(fēng)力發(fā)電機是為了適應(yīng)變速范圍較寬的風(fēng)力發(fā)電以及船艇、車輛等電源系統(tǒng)的新發(fā)展而提出的系統(tǒng)。它的定子設(shè)有兩套繞組，一套是功率繞組，輸出端接有勵磁電容、濾波電容、整流器，輸出變頻交流電或整流直流電壓；另一套是控制繞組，接有靜止的勵磁變換器，可以為發(fā)電機連續(xù)地提供勵磁，解決了異步發(fā)電機在負載和轉(zhuǎn)速都大范圍的變化時，所需要的大范圍變化的勵磁電流調(diào)節(jié)等問題。兩套定子繞組在電氣上沒有直接連接，僅是通過磁耦合，容易達到高性能的控制。
定子雙繞組異步電機風(fēng)電機組與當(dāng)前風(fēng)電主流產(chǎn)品有刷雙饋異步和直驅(qū)永磁同步機組相比具有很多固有的優(yōu)點，首先定子雙繞組感應(yīng)電機在結(jié)構(gòu)上繼承了傳統(tǒng)異步電機的優(yōu)點：轉(zhuǎn)子為籠型，結(jié)構(gòu)簡單堅固，無電刷和滑環(huán)，可適應(yīng)復(fù)雜惡劣的環(huán)境，電機成本低、以及功率密度高等優(yōu)點，其次系統(tǒng)所需勵磁變換器容量僅為額定容量的三分之一，即可通過靈活的控制策略，實現(xiàn)連續(xù)調(diào)節(jié)發(fā)電機勵磁無功，獲得高品質(zhì)的電能。
本文以定子雙繞組異步電機風(fēng)力發(fā)電系統(tǒng)為研究對象，闡述了其基本工作原理，給出了數(shù)學(xué)模型，針對其輸出穩(wěn)定電壓的控制要求，研究了其用于風(fēng)力發(fā)電系統(tǒng)的控制策略。論文重點對定子雙繞組異步風(fēng)力發(fā)電系統(tǒng)的正常運行做了仿真研究，將系統(tǒng)的數(shù)學(xué)模型和控制策略在SIMULINK中建立模型，通過仿真結(jié)果驗證控制方案的準(zhǔn)確性及系統(tǒng)的可行性。
關(guān)鍵詞：定子雙繞組異步發(fā)電機，風(fēng)力發(fā)電，勵磁變化器，間接定子磁場定向控制


Simulation Study of Dual Stator Winding Induction Motor wind power generation system
Abstract: Dual stator-winding induction generator is to adapt to new developments in a wide range of wind speed and aviation, combat vehicles, such as the power system and the proposed. It has two sets of stator windings, a set of power winding, excitation output termination capacitors, rectifier, filter capacitor, the output frequency AC or DC voltage rectifier, Another set of control winding is connected with a stationary transducer excitation, the excitation can be continuously provided to the generator, induction generator to solve a wide range of speed and load are in the variation range, the required change in the field current controller issues. By optimizing the design of a control strategy and system parameters, in a wide speed range and variable load conditions, with a small amount of excitation capacity to effectively control the inverter power output, ora small current to effectively control the excitation transducer the large current power output to maintain a constant output voltage amplitude, effectively reduce the system cost, size and weight. Two stator windings are not directly electrically connected only through the magnetic coupling, easy to control, high-performance.
Dual stator winding induction motor wind turbine with the current mainstream products wind brushed double-fed asynchronous and direct-drive permanent magnet synchronous machine has many inherent advantages compared to first dual stator winding induction motor in the structure inherits the advantages of traditional induction motor: Rotor for the cage, simple rugged, no brushes and slip rings can be adapted to the harsh environment of complex, low electrical costs, and higher power density advantage, followed by the system capacity is only one-third of the required excitation converter rated capacity, flexible control strategy to achieve continuous adjustment of generator excitation reactive, high-quality energy.
In this paper, two-winding induction motor stator wind power generation system for the study, illustrates this wind power generation system and network solutions, explains its characteristics and requirements and network solutions. Paper focuses on the dual stator winding induction motor research, a mathematical model and control strategy of the system, and adopted the simulation to determine the accuracy and feasibility of the control scheme.
Keywords: dual stator winding induction generator, wind power, Excitation converter, indirect stator field oriented control.

目 錄
第一章 緒論 1
1.1課題研究的意義和背景 1
1.2 風(fēng)力發(fā)電技術(shù)的發(fā)展現(xiàn)狀 2
1.2.1 恒速恒頻發(fā)電技術(shù) 2
1.2.2 變速恒頻發(fā)電技術(shù) 2
1.3 變速恒頻風(fēng)力發(fā)電機的發(fā)展現(xiàn)狀 3
1.3.1直驅(qū)式永磁風(fēng)力發(fā)電機 4
1.3.2有刷雙饋異步風(fēng)力發(fā)電機 5
1.3.3籠型異步風(fēng)力發(fā)電系統(tǒng) 5
1.3.5其他類型的發(fā)電機組 6
1.4定子雙繞組異步風(fēng)力發(fā)電系統(tǒng) 6
1.5本文主要研究工作 7
第二章 DWIG風(fēng)力發(fā)電系統(tǒng)的工作原理與數(shù)學(xué)模型 9
2.1定子雙繞組異步電機風(fēng)力發(fā)電系統(tǒng)的基本結(jié)構(gòu)及工作原理 9
2.1.1定子雙繞組異步電機風(fēng)力發(fā)電系統(tǒng)的基本結(jié)構(gòu) 9
2.1.2定子雙繞組異步電機風(fēng)力發(fā)電系統(tǒng)的基本工作原理 10
2.2 DWIG的數(shù)學(xué)模型 11
2.2.1 DWIG 的穩(wěn)態(tài)數(shù)學(xué)模型 11
2.2.2 DWIG 的動態(tài)數(shù)學(xué)模型 13
2.3定子雙繞組異步電機風(fēng)力發(fā)電系統(tǒng)的控制策略 15
2.3.1直接定子磁場定向控制 15
2.3.2間接定子磁場定向控制 17
2.4 電壓控制原理 18
2.5 小結(jié) 19
第三章 定子雙繞組異步電機風(fēng)力發(fā)電系統(tǒng)的建模與仿真 20
3.1仿真系統(tǒng)的搭建 20
3.1.1定子雙繞組異步發(fā)電系統(tǒng)模型的建立 20
3.2仿真結(jié)果的分析 27
3.3小結(jié) 29
第四章 結(jié) 論 30
4.1全文工作總結(jié) 30-b..