Description: 用DSP实现高功率因数PWM整流器的控制，采用2407控制-Using DSP to achieve high power factor PWM rectifier control, the use of 2407 control Platform: |
Size: 254976 |
Author:Brutal |
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Description: 本文以双Pwm变换器为基础，分析论述了电力电子装置的整流、逆变和回馈状态的国内外发展状况。随着科学技术的发展，电力电子装置的低功率因数和高谐波污染已经成为电网的两大主要危害，因此提高系统功率因数便是电力电子技术的发展趋势，本文阐述了功率因数的定义，脉宽调制的种类以及电压
型PWM变换器的原理、控制方法等内容，比较了脉宽调制的各种类型，详细推导了三相电压型PWM变换器的数学建模，指出系统各种控制方法的优缺点，着重表达了二相调制脉宽空间矢量WPM的算法推导，选用了系统主控芯片，编写了系统软件程序，设计了交一直一交的主电路结构，针对控制系统的要求，论
文对影响系统性能的几个主要参数进行了理论分析、推导和数值计算。
本文用Matalb仿真软件，对整个控制系统的动态性能进行了仿真与分析，验证了系统理论的正确性和可应用性，对样机的研制提供了强有力的指导作用。
论文最后，讨论了样机实验。通过一系列的实验，记录、分析样机在各种状态下的波形和数据，得出结论，做出展望，为课题的进一步研究打下了一定的基础。
-In this paper, double-Pwm converter, based on analysis of power electronic devices discussed rectifier, inverter and feedback status of domestic and foreign developments. With scientific and technological development, low-power electronic devices, power factor and high harmonic pollution has become the network s two main hazards, thus improving system power factor is the development trend of power electronics technology, this paper, the definition of power factor, pulse-width modulation types as well as voltage
-Type PWM converter principle, control methods, content, comparison of various types of pulse-width modulation, detailed derivation of the three-phase voltage-type PWM converter mathematical modeling, pointing out that the system s advantages and disadvantages of various control methods, focusing on expression of two-phase space vector pulse width modulation algorithm derived WPM, choose the system master chip, the preparation of the system software program designed to pay a d Platform: |
Size: 3617792 |
Author:狼狼 |
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Description: matlab做的一个高功率因数整流器的仿真，做的是单相的。-matlab to do a simulation of high power factor rectifier, single phase Platform: |
Size: 10240 |
Author:单世超 |
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Description: 建立简化的高功率因素整流器的开关周期和电源周期的时域平均模型。已知交流电压源有效值为220V，写出相应直流电压源电压以及电路中其他控制参数的具体确定过程，并将两个模型的输出进行对比。-To establish a simplified high-power factor rectifier and power cycle the switching cycle average model in time domain. Effective value of AC voltage source known 220V, write the appropriate DC voltage source voltage, and other control circuits in the process of determining specific parameters, and output of two models were compared. Platform: |
Size: 210944 |
Author:othanda |
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Description: 以12脉波整流电路为研究对象，有效降低网侧电流的谐波畸变，其主要原因在于所采用的移相变压器，能过它可使各6脉波二极管整流器产生的低次谐波相互抵消。利用Matlab—Simulink建立模型对其进行仿真，并对其产生谐波电流进行分析和计算，阐述了其消谐原理。这种整流电路采用两个6脉波二极管整流器进行串联，功率因数较高，提高了直流电压的输出能力，对减少电网中的谐波干扰十分有效，可以有效地消除钢厂电力系统中较高次数的谐波。-Low-order harmonics with 12 pulse rectifier circuit for the study, effectively reducing line current harmonic distortion, mainly due to phase-shifting transformer used, it can make each six-pulse diode rectifier generated offset each other . Using Matlab-Simulink simulation modeling them, and analyze and calculate their produce harmonic currents, described its harmonic elimination principle. This rectifier circuit uses two 6-pulse rectifier diode in series, high power factor, increase the output capacity of the DC voltage to reduce power grid harmonic interference is very effective, steel power system can effectively eliminate high the number of harmonics.
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Size: 560128 |
Author:伍莎莎 |
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Description: PWM整流器SIMLINK仿真模型，双闭环控制（电流内环，电压外环），实现输入电流的高功率因数控制-PWM Rectifier SIMLINK simulation model, dual-loop control (current loop, voltage outer loop), the input current to achieve high power factor control Platform: |
Size: 13312 |
Author:刘兆娟 |
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Description: 基于单周期控制的高功率因数整流器的研究_张厚升-Based on One Cycle Control High Power Factor Rectifier research _ Hou liter Platform: |
Size: 3897344 |
Author:s |
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