【摘要】：近年來，伴隨計(jì)算機(jī)、微電子和先進(jìn)控制理論的迅速發(fā)展，，永磁同步電機(jī)（PMSM）伺服驅(qū)動技術(shù)突飛猛進(jìn)，已成為高端制造業(yè)支持國家經(jīng)濟(jì)發(fā)展的核心技術(shù)之一。作為PMSM伺服系統(tǒng)三閉環(huán)控制結(jié)構(gòu)的最內(nèi)環(huán)，電流環(huán)的作用是使電機(jī)繞組電流實(shí)時、準(zhǔn)確地跟蹤指定電流參考信號，其性能直接影響著系統(tǒng)控制精度與響應(yīng)速度，是整個PMSM伺服驅(qū)動系統(tǒng)改善控制性能的關(guān)鍵。比例積分（PI）控制方法長期以來一直是電流環(huán)控制器的主要算法，本文針對該方法忽略反電動勢在高速環(huán)節(jié)帶來的不穩(wěn)定因素，引入狀態(tài)空間反饋電流環(huán)控制算法，有效增強(qiáng)了系統(tǒng)的抗干擾與動態(tài)性能。 本文在內(nèi)容構(gòu)成方面首先介紹了伺服系統(tǒng)的基本構(gòu)成和發(fā)展史、PMSM全數(shù)字伺服系統(tǒng)的主要特點(diǎn)、國內(nèi)外研究現(xiàn)狀以及其控制策略；隨后構(gòu)建了PMSM的數(shù)學(xué)模型，闡述了矢量控制與電壓空間矢量脈寬調(diào)制（SVPWM）的技術(shù)原理、特點(diǎn)、工作方式，并對電流環(huán)控制策略和影響因素進(jìn)行闡述；利用MATLAB/SIMULINK軟件對經(jīng)典電流環(huán)PI設(shè)計(jì)方法和狀態(tài)空間反饋電流環(huán)設(shè)計(jì)方法進(jìn)行仿真研究，通過波形分析比較驗(yàn)證兩種方法在電流環(huán)控制方面的優(yōu)劣；簡要介紹了系統(tǒng)相關(guān)的實(shí)驗(yàn)平臺組成設(shè)備，構(gòu)建了系統(tǒng)的整體仿真模型，在所搭建的仿真模型上進(jìn)行了實(shí)驗(yàn)研究；最后詳細(xì)介紹了以TMS320F28035DSP為核心控制芯片的PMSM全數(shù)字化伺服系統(tǒng)的硬件、軟件部分，包括硬件整體結(jié)構(gòu)、DSP28035控制芯片、信號檢測電路、逆變電路、軟件主程序以及中斷服務(wù)程序等，為PMSM全數(shù)字化伺服系統(tǒng)進(jìn)一步開發(fā)奠定了堅(jiān)實(shí)的基礎(chǔ)。
[Abstract]:In recent years, with the rapid development of computer, microelectronics and advanced control theory, the (PMSM) servo drive technology of permanent magnet synchronous motor (PMSM) has developed by leaps and bounds, and has become one of the core technologies of high-end manufacturing industry to support the national economic development. As the innermost loop of the three-loop control structure of PMSM servo system, the function of the current loop is to make the motor winding current track the specified current reference signal in real time, and its performance directly affects the control accuracy and response speed of the system. It is the key to improve the control performance of the whole PMSM servo drive system. The proportional integral (PI) control method has been the main algorithm of current loop controller for a long time. In this paper, a state space feedback current loop control algorithm is introduced in order to ignore the unstable factors brought by the backEMF in the high speed link. The anti-jamming and dynamic performance of the system are effectively enhanced. In terms of content composition, this paper first introduces the basic structure and history of the servo system, the main characteristics of the PMSM all-digital servo system, the domestic and foreign research status and its control strategy, and then constructs the mathematical model of PMSM. The technical principle, characteristics and working mode of vector control and voltage space vector pulse width modulation (SVPWM) are expounded, and the current loop control strategy and influencing factors are also described. The classical current loop PI design method and the state space feedback current loop design method are simulated by using MATLAB/SIMULINK software, and the advantages and disadvantages of the two methods in current loop control are verified by waveform analysis and comparison. This paper briefly introduces the components of the experimental platform, constructs the whole simulation model of the system, and carries on the experimental research on the simulation model. Finally, the hardware and software of PMSM digital servo system with TMS320F28035DSP as the core control chip are introduced in detail, including the whole hardware structure of DSP28035 control chip, signal detection circuit, inverter circuit, software main program and interrupt service program, etc. It lays a solid foundation for the further development of PMSM full digital servo system.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM341

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