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Description: 在理 论 分 析与仿真的基础上，本文对上述三种控制策略进行了实验研究，设计了控制系统的硬件电路和DSP程序。实验结果给出了三种控制方法下的稳态波形与电流谐波分析，系统动态响应波形和双重化结构谐波抑制的验证。实验结果与理论分析吻合，表明一定控制下的PWM 变流器具有较好的稳态与动态工作性能，适用于大功率风力发电应用场合。-In the theoretical analysis and simulation based on this article on the above three control strategies were studied, the design of the control system hardware circuit and the DSP program. The experimental results give the three control methods under steady-state waveform and current harmonic analysis, the system dynamic response waveform and harmonic suppression structure of double authentication. The experimental results coincide with theoretical analysis, shows that under the control of PWM converter has good steady-state and dynamic performance for high-power wind power generation applications.
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Size: 2764800 |
Author: weipeiyong |
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Description: 本文件是一个SPWM逆变器的仿真源文件，可以在MATLAB7.1中直接运行。设计中PWM Generator采用外部调制信号，并在调制信号中注入了三次谐波，很好的抑制了输出谐波，同时提高了直流电源的利用率。-This document is a SPWM inverter simulation source file, you can directly run MATLAB7.1. Design of PWM Generator external modulation signal, and in the modulation signal into the third harmonic, the output of good harmonic suppression, while improving the utilization of the DC power supply.
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Size: 67584 |
Author: 李勇 |
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Description: 三相PWM叠加三次谐波控制Simulink仿真，另加一滤波器观看PWM经过低通滤波后的波形，适合电力电子初学者-Superposition of three harmonic three-phase PWM control Simulink simulation, plus a watch PWM filter through after the low-pass wave filter for power electronics for beginners
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Size: 9216 |
Author: 阿泥 |
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Description: simulation pulse width modulation of selective harmonic elimination of pwm inverter
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Size: 10240 |
Author: prafullachandra |
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Description: Selective harmonic elemination....using pwm-Selective harmonic elemination....using pwm..
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Size: 12288 |
Author: suresh |
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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
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Author: 狼狼 |
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Description: This the simulink model for selective harmonic elimination method for induction motor.-This is the simulink model for selective harmonic elimination method for induction motor.
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Size: 2638848 |
Author: sumanth |
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Description: 电力电子方面的专业书籍，主要介绍PWM变换器的平均模型，控制方法，低次谐波整流器，阻抗变换器等。-Power electronics professional books, introduces the average model of PWM converters, the control method, low harmonic rectifier, impedance converter and so on.
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Size: 3608576 |
Author: 刘乐乐 |
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Description: Methods for limitation and elimination of disturbances and harmonic pollution in the power system have been widely investigated. This problem rapidly intensifies with the increasing amount of electronic equipment (computers, radio set, printers, TV sets etc.). This equipment, a nonlinear load, is a source of current harmonics, which produce increase of reactive power and power losses in transmission lines. The harmonics also cause electromagnetic interference and, sometimes, dangerous
resonances. They have negative influence on the control and automatic equipment, protection systems, and other electrical loads, resulting in reduced reliability and availability. Moreover, nonlinear loads and non-sinusoidal currents produce non-sinusoidal voltage drops across the network impedanceis, so that non-sinusoidal voltages appears at several points of the mains. It brings out overheating of line,transformers and generators due to the iron losses. - Methods for limitation and elimination of disturbances and harmonic pollution in the power system have been widely investigated. This problem rapidly intensifies with the increasing amount of electronic equipment (computers, radio set, printers, TV sets etc.). This equipment, a nonlinear load, is a source of current harmonics, which produce increase of reactive power and power losses in transmission lines. The harmonics also cause electromagnetic interference and, sometimes, dangerous
resonances. They have negative influence on the control and automatic equipment, protection systems, and other electrical loads, resulting in reduced reliability and availability. Moreover, nonlinear loads and non-sinusoidal currents produce non-sinusoidal voltage drops across the network impedanceis, so that non-sinusoidal voltages appears at several points of the mains. It brings out overheating of line,transformers and generators due to the iron losses.
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Size: 2214912 |
Author: lakhdar |
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Description: 本文介绍了在SPWM 调制中TM S320F240 数字信号处理
芯片的使用, 利用双极式
等面积脉宽调制波的算法, 产生不同频率的SPWM 波, -This article describes the SPWM modulation TM S320F240 digital signal processing
The use of the chip, the use of bipolar
Equal area PWM wave algorithm to generate SPWM waves of different frequencies,
High speed, high precision, frequency advantages of convenience. Output
Harmonic wave of small, good symmetry.
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Size: 202752 |
Author: fumy |
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Description: 恒频恒压(CVCF)逆变电源的输出电压波形质量是衡量其性能的重要指标之一。文章采用一种重复控制和双闭环控制相结合的电压波形控制策略，以重复控制器提高逆变电源输出电压的稳态精度，减小总谐波畸变率；以双闭环控制器达到较快的动态响应速度。该方案在一台采用TMS320F240 DSP控制芯片的50 Hz三相PWM逆变器上得到验证。-Constant voltage constant frequency (CVCF) Inverter output voltage waveform quality is an important measure of its performance indicators. Paper using a repetitive control and the combination of double closed loop control voltage waveform control strategy to improve the repetitive controller output voltage inverter steady-state accuracy and reduce total harmonic distortion to achieve a faster dual-loop controller dynamic response speed. The program uses TMS320F240 DSP in a 50 Hz phase control chip PWM inverter has been to verify.
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Size: 405504 |
Author: Jew |
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Description: 三电平载波PWM谐波分析及LCL滤波器设计-Three-level PWM carrier harmonic analysis and LCL filter design
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Size: 2048 |
Author: 刘娜 |
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Description: 三电平载波同相层叠PWM方法谐波频谱分析及滤波器设计-Carrier-phase three-level PWM method cascading harmonic spectrum analysis and filter design
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Size: 2048 |
Author: 刘娜 |
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Description: 三电平同相层叠PWM方法谐波频谱分析及滤波器设计-Cascade three-level PWM method compared with the harmonic spectrum analysis and filter design
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Size: 2048 |
Author: 刘娜 |
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Description: Selective Harmonic Elimination PWM
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Size: 11264 |
Author: Ramesh |
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Description: 应用 Ma t l a b ／ S i mu l i n k仿真研究了这种整流器系统的三、c参数和
P I 调节器参数对直流侧电压响应及交流侧谐波与功率因数的影响，提出了一套简单易行、规范化
的设计和参数整定方法。-Ma tlab/S i mu link simulation research of this rectifier system, c parameter and the PI regulator parameters on the response of DC voltage and AC-side harmonic and power factor, a simple, standardized design and parameter tuning.
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Size: 460800 |
Author: Catherina |
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Description: This code has been generated to realize selective harmonic elimination pulse width modulation (SHE-PWM) in TMSF28335 DSP micro-controller.
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Size: 3072 |
Author: judd |
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Description: 脉宽调制（PWM）波形图的仿真模型，用于谐波的分析，可用于逆变器的控制策略研究-Pulse width modulation (PWM) waveform simulation model for harmonic analysis, can be used for inverter control strategy research
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Size: 18432 |
Author: 昭汉卿 |
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Description: In this paper, simulation and practical
implementation of direct power control is presented for a PWM
Rectifier application. The proposed DPC control has several
advantages, including the grid current very close to sinusoidal
waveforms (TDH <1.2%), and good regulation of DC-bus
voltage is achieved using the PI controller. The simulation and
the experimental results obtained in this study, demonstrate the
effectiveness of the direct power control algorithm to eliminate
the harmonic currents, ameliorate the active power quality and
minimize the reactive energy effect which allowed us to affirm
the strength of the proposed strategy.
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Size: 487424 |
Author: sbr energie
|
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Description: 正弦pwm调制技术，把三次谐波注入pwm调制技术中的simulation搭建。(Sinusoidal PWM Tech. & Third Harmonic Injection PWM Tech)
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Size: 47104 |
Author: /新人小白 |
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