三相电压型空间矢量PWM整流器的研究
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摘要
随着现代电力电子技术、微电子技术以及计算机技术的发展,以PWM技术为基础的功率变换装置得到了越来越广泛的应用。PWM整流器具有高功率因数、低谐波污染、能量双向流动、恒定直流电压控制等优点,在电力系统有源滤波、无功补偿、潮流控制、太阳能发电以及交直流传动系统等领域,具有越来越广阔的应用前景。
本论文侧重于三相电压型PWM整流器的控制系统的工程设计与实现,论文的主要内容包括控制方案的研究、系统软件、硬件的设计与实现,以及样机的研制。
论文中,首先深入分析PWM整流器工作原理并建立了PWM整流器数学模型,利用Matlab仿真软件对电压、电流双闭环空间矢量控制进行了仿真,同时对提高PWM整流器抗负载扰动性能进行设计与仿真:其次采用TI公司的TMS320LF2406芯片作为控制器、EUPEC公司的IPM模块作为主电路,对三相电压型空间矢量PWM整流器控制系统硬件进行了设计与实现,以及系统软件的程序设计与调试。
针对硬件锁相的不足,在结合PWM整流器空间矢量解耦控制算法的基础上,提出将软件锁相环技术应用在PWM整流器控制中,并通过仿真和实验验证了该方案正确性和可行性性。基于PROTEUS单片机仿真软件平台上对系统键盘与显示进行了软件仿真,通过仿真和实验验证了软件设计的合理性。
论文通过系统实验波形验证了三相电压型空间矢量PWM整流器系统仿真研究、软硬件设计的合理性及正确性。
With the development of power electronics, microelectronics and computer, the power conversion apparatus based on the PWM (Pulse Width Modulation) technique is gaining more and more application. PWM rectifiers have the characteristics of arge power factor, small harmonic pollution, bidirectional power flow, small capacity power storage segment and constant direct voltage, so they have more and more applicationperspective in active filtering, reactive load compensation, tide control, solar electricalenergy generation and motor control systems.
This dissertation focuses on the engineering design and realization of high power three-phase Voltage Source Rectifier. The dissertation work, including the study of control scheme, the design of the software and hardware of system and develop.
In the first place of the paper,deep analysed PWM rectifier principle and established a mathematical model of PWM Rectifier,the double-loop voltage and current space vector PWM(svpwm)algorithm was simulated by MATLAB programs. At the same time, simulation research on improvrment of anti-disturbance performance for three-phase PWM rectifiers.
Secondly,Using TI's TMS320LF2406 chips as controllers, EUPEC company IPM module as a main circuit. The three-phase voltage rectifier space vector PWM control system hardware design and implementation, system software design and debug.
Last but not the least, during the experiment found that the lack of hardware phase locked loop. This paper was base on SVPWM rectifier decoupled control, a novel software phase locked loop is used in PWM rectifier algorithm, the simulations and experimental result proves the scheme is feasible. This paper was base on the PROTEUS MCU simulation software platform for the keyboard and display software simulation, simulation and experimental validation of the software design was reasonable.
The paper concludes with convincing results and expected waveforms that predict the design simulation, software and hardware design and the reasonable accuracy of PWM rectifier.
本论文侧重于三相电压型PWM整流器的控制系统的工程设计与实现,论文的主要内容包括控制方案的研究、系统软件、硬件的设计与实现,以及样机的研制。
论文中,首先深入分析PWM整流器工作原理并建立了PWM整流器数学模型,利用Matlab仿真软件对电压、电流双闭环空间矢量控制进行了仿真,同时对提高PWM整流器抗负载扰动性能进行设计与仿真:其次采用TI公司的TMS320LF2406芯片作为控制器、EUPEC公司的IPM模块作为主电路,对三相电压型空间矢量PWM整流器控制系统硬件进行了设计与实现,以及系统软件的程序设计与调试。
针对硬件锁相的不足,在结合PWM整流器空间矢量解耦控制算法的基础上,提出将软件锁相环技术应用在PWM整流器控制中,并通过仿真和实验验证了该方案正确性和可行性性。基于PROTEUS单片机仿真软件平台上对系统键盘与显示进行了软件仿真,通过仿真和实验验证了软件设计的合理性。
论文通过系统实验波形验证了三相电压型空间矢量PWM整流器系统仿真研究、软硬件设计的合理性及正确性。
With the development of power electronics, microelectronics and computer, the power conversion apparatus based on the PWM (Pulse Width Modulation) technique is gaining more and more application. PWM rectifiers have the characteristics of arge power factor, small harmonic pollution, bidirectional power flow, small capacity power storage segment and constant direct voltage, so they have more and more applicationperspective in active filtering, reactive load compensation, tide control, solar electricalenergy generation and motor control systems.
This dissertation focuses on the engineering design and realization of high power three-phase Voltage Source Rectifier. The dissertation work, including the study of control scheme, the design of the software and hardware of system and develop.
In the first place of the paper,deep analysed PWM rectifier principle and established a mathematical model of PWM Rectifier,the double-loop voltage and current space vector PWM(svpwm)algorithm was simulated by MATLAB programs. At the same time, simulation research on improvrment of anti-disturbance performance for three-phase PWM rectifiers.
Secondly,Using TI's TMS320LF2406 chips as controllers, EUPEC company IPM module as a main circuit. The three-phase voltage rectifier space vector PWM control system hardware design and implementation, system software design and debug.
Last but not the least, during the experiment found that the lack of hardware phase locked loop. This paper was base on SVPWM rectifier decoupled control, a novel software phase locked loop is used in PWM rectifier algorithm, the simulations and experimental result proves the scheme is feasible. This paper was base on the PROTEUS MCU simulation software platform for the keyboard and display software simulation, simulation and experimental validation of the software design was reasonable.
The paper concludes with convincing results and expected waveforms that predict the design simulation, software and hardware design and the reasonable accuracy of PWM rectifier.
引文
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[15]王光明,钱希森.三相电压型PWM整流器的非线性控制研究[J].电源世界,2005
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[22]Dixon J W,Ooi B T.Indirect current control of a unity power factor sinusoidal current boost type three-phase rectifier.IEEE Trans Power Electron,1998,35:508-515.
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[30]郎永强,徐殿国,HADIANAMREISR,马洪飞.三相电压型PWM整流器的一种改进前馈控制策略[J].电机与控制学报,2006,10(2)
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[32]王晓明,王玲.电动机的DSP控制-TI公司DSP应用[M].北京:北京航空航天大学出版社,2004:1-300
[33]李真芳,苏涛,黄小宇.DSP程序开发-MATLAB调试及直接目标代码生成[M].西安:西安电子科技大学出版社,2003:1-300
[34]同诗白,华成英.模拟电子技术基础[M].北京:高等教育出版社,2001:101-201
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