【摘要】：永磁同步電機由于結(jié)構(gòu)簡單、重量輕、損耗小,效率高,功率因數(shù)高,力矩慣量比大,在工業(yè)領(lǐng)域得到廣泛關(guān)注和應(yīng)用。可是,永磁材料存在的固有特性,在永磁電機成品后其氣隙磁場固定,針對永磁同步電機磁場調(diào)節(jié)困難等缺點,本課題組提出一種在永磁同步電機基礎(chǔ)上加以改進(jìn)創(chuàng)新的混合勵磁結(jié)構(gòu)同步發(fā)電機。論文對該機型的結(jié)構(gòu)原理、數(shù)學(xué)模型進(jìn)行了分析。電機硬件控制系統(tǒng)采用數(shù)字信號處理器(DSP)為控制核心,傳統(tǒng)設(shè)計過程由于控制系統(tǒng)復(fù)雜,電路龐大,采用嵌入式芯片控制,程序代碼開發(fā)困難,給設(shè)計人員帶來很大難度。本文將基于模型設(shè)計方法引入研究當(dāng)中,重點研究基于模型設(shè)計方法在電機控制系統(tǒng)設(shè)計中的應(yīng)用。確定了混合勵磁同步發(fā)電機控制系統(tǒng)的主要拓?fù)浣Y(jié)構(gòu)、控制策略后,采用MATLAB/Simulink軟件建立控制仿真模型,仿真驗證電機模型及其控制模型的準(zhǔn)確性。之后采用了基于模型的設(shè)計方法建立控制模型,基于模型設(shè)計方法即用Simulink中TI C2000模塊搭建電機的控制模型,實現(xiàn)基于TMS320F2812控制系統(tǒng)的快速開發(fā),使得實驗平臺所需嵌入式C代碼自動生成�；谀Ｐ驮O(shè)計方法的應(yīng)用將傳統(tǒng)相互孤立、間斷的開發(fā)流程有機的結(jié)合起來。本文硬件實驗平臺是以TMS320F2812為核心的電機控制器,包括主電源,控制電源部分,主控CPU核心板,功率單元(IPM模塊),電流電壓檢測模塊,PWM脈沖隔離(高速光耦),論文對該實驗硬件平臺進(jìn)行了詳細(xì)研究。最后,為了驗證基于模型設(shè)計方法自動生成代碼的可靠性與可行性,論文以永磁同步電機磁場定向控制為例進(jìn)行了實驗驗證,來說明在混合勵磁電機樣機研制完成之前采用基于模型設(shè)計方法的優(yōu)勢。實驗主要工作包括建立控制模型,C代碼自動生成,實驗平臺驗證。論文的研究成果為混合勵磁同步發(fā)電機的勵磁控制器以及永磁同步電機等DSP控制器實現(xiàn)的便捷、高效、經(jīng)濟化奠定了堅實的基礎(chǔ)。
[Abstract]:Permanent magnet synchronous motor (PMSM) is widely concerned and applied in industrial field because of its simple structure, light weight, low loss, high efficiency, high power factor and large torque inertia ratio. However, the inherent characteristics of permanent magnet materials are fixed in the air gap magnetic field after the permanent magnet motor is finished, and it is difficult to adjust the magnetic field of the permanent magnet synchronous motor. A hybrid excitation synchronous generator based on permanent magnet synchronous motor (PMSM) is proposed. The structure principle and mathematical model of this machine are analyzed in this paper. Digital signal processor (DSP) is used as the control core in the motor hardware control system. The traditional design process is very difficult for the designer because the control system is complex, the circuit is huge, the embedded chip is used to control, and the program code is difficult to develop. In this paper, the model based design method is introduced into the research, and the application of the model based design method in the motor control system design is emphasized. The main topology of the hybrid excitation synchronous generator control system is determined. After the control strategy is determined, the control simulation model is established by using MATLAB/Simulink software, and the veracity of the motor model and its control model is verified by simulation. Then the control model is established by using the model-based design method. The control model of the motor is built with the TI C2000 module in Simulink, and the rapid development of the control system based on TMS320F2812 is realized. So that the experimental platform needs embedded C code generation automatically. The application of model-based design method organically combines the traditional development process, which is isolated from each other and discontinuous. The hardware experiment platform of this paper is a motor controller with TMS320F2812 as the core, including main power supply, control power supply, main control CPU core board, power unit (IPM module), current and voltage detection module, PWM pulse isolation (high speed optocoupler). The hardware platform of the experiment is studied in detail in this paper. Finally, in order to verify the reliability and feasibility of automatic code generation based on the model design method, the paper takes the permanent magnet synchronous motor (PMSM) field oriented control as an example for experimental verification. The advantages of using the model-based design method before the development of the hybrid excitation motor prototype are illustrated. The main work of the experiment includes the establishment of control model, C code automatic generation, experimental platform verification. The research results of this paper have laid a solid foundation for the realization of the excitation controller of hybrid excitation synchronous generator and the DSP controller such as permanent magnet synchronous motor.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TM341

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本文編號：2322883