Description: 变频驱动主要使用的驱动波形主要有SPWM和SVPWM两种。SPWM原理简单、实现容易,是现在使用最广的一种变频驱动波形。但其有一个致命的弱点是其电源利用率不高（只有86％）、谐波成分大。因此,在新近开发的产品中其应用逐渐被性能优异的SVPWM所取代。SVPWM是一种电压利用率、低谐波成分的变频驱动波形,还有开关次数少、功率管功耗小等特点。同时,SVPWM还能很好的结合矢量控制算法、以最大限度的发挥设备的性能。因此被越来越多的变频设备所采用。-The main use of variable frequency drive drive waveform SPWM and SVPWM are mainly two. SPWM principle of simple, easy, is now the most widely used as a variable frequency drive waveform. But there is a fatal weakness is its power utilization is not high (only 86), large harmonic components. Therefore, in the newly developed products in its application performance is gradually replaced by SVPWM. SVPWM is a voltage utilization, low-harmonic component waveform of variable frequency drive, there are fewer switches, power control features such as power consumption small. At the same time, SVPWM also a very good combination of vector control algorithm to maximize the performance of the play equipment. Therefore increasingly being used by the inverter equipment. Platform: |
Size: 174080 |
Author:wangwang |
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Description: 高压变频类的选型资料,电力系统非常有用,可以用于节电-Selection of high-voltage inverter-type information, the power system is very useful, can be used to power Platform: |
Size: 59392 |
Author:zz |
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Description: 基于PI_DPLL的高频逆变电源频率跟踪系统的研究-Based on the high-frequency inverter power source PI_DPLL frequency tracking system Platform: |
Size: 1019904 |
Author:AngleKing |
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Description: 多相永磁同步电机驱动技术研究(中科院博士论文)目前,三相电机驱动系统在电气驱动应用场合得到了广泛的应用,然而随着现代电力电子技术、计算机技术和控制理论的发展,由逆变器供电的电机驱动系统的相数不再受到供电相数的限制。特别在大功率、高可靠性和低直流电压供电应用场合,多相电机驱动系统比三相电机驱动系统更具优势,因此多相电机驱动系统特别适合于应用在舰船全电力推进、电动车辆、航空航天和军事等场合。其相关技术的研究为电气驱动技术的研究开辟了新的领域,多相电机驱动系统得到各国科研人员越来越多的关注和重视。 本文研究从任意相数多相电机出发,重点研究了五相永磁同步电机驱动系统,全文主要内容如下: 引入绕组函数理论定量分析了任意相数对称绕组的磁势时空谐波分布,说明了低次时空谐波在多相电机中的重要作用 首次从对称分量法推导出推广派克变换,并建立了n-m相感应电机数学模型,指出多相电机控制是一个多维控制问题。这些基础理论知识为分析多相电机奠定了理论基础。 建立了五相永磁同步电机派克方程,在此基础上研究了五相永磁同步电机中d-q子空间与广义零序子空间的耦合问题。并根据不同结构形式五相永磁同步电机的特点,详细讨论了不同情况下的多维矢量控制和解耦控制问题。 -In electrical drive applications, three-phase drives are widely used for theirconvenience. However, with the advent of modern power electronics, computertechniques and control theories, the inverter-fed motor drives remove the limitation onthe number of power supplies and machines phases. Especially in the applications ofhigh power, high reliability, and low dc bus voltage, multiphase drives show severaladvantages over three-phase drives. Platform: |
Size: 5800960 |
Author: |
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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: 介绍了基于DSP 的115 V/400 Hz 三相逆变电源的设计原理和设计方法，采用移相谐振控制技术和周波变流型
高频环节逆变技术，使整机开关最大程度地实现了软开关。实验结果表明，该逆变电源设计合理、可靠性高，并在小
型化、提高功率密度和可靠性方面，取得了很好的效果-Introduced DSP-based three-phase inverter power supply 115 V/400 Hz design principle and design method, using phase resonant frequency inverter control technology and high frequency link inverter technology, the machine switches to maximize the soft switch. Experimental results show that the inverter power supply design is reasonable, reliable and small, to improve power density and reliability, achieved good results Platform: |
Size: 337920 |
Author: |
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Description: 矢量控制c代码中锁相环的求取，值得研究生学习借鉴和大功率边变频器相关技术人员借鉴。
-The vector control phase-locked loop of the strike in the c code, it is worth the graduate study reference and high-power side of the inverter and technical personnel draw. Platform: |
Size: 9216 |
Author:王乃父 |
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Description: A Composite Pwm Method Of Three-Phase Voltage Source Inverter For High-Power Applications Platform: |
Size: 611328 |
Author:Aibing Gong |
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Description: 高压大功率变频器技术原理与应用.pdf，本书将的较全面，是本不错的书-Principle and application of high-pressure high-power inverter technology pdf book more comprehensive and a good book Platform: |
Size: 21196800 |
Author:laowang |
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Description: 基于Buck调压的高频高压
除尘电源的研究
-Research on high-frequency high-voltage inverter power supply for electrostatic precipitator
based on Chopper
Platform: |
Size: 12288 |
Author:zmc |
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Description: Multilevel inverter technology has emerged recently as a very important alternative in the area of high power medium voltage energy control. Platform: |
Size: 840704 |
Author:dilip |
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Description: X射线机控制源代码主要对高频微焦点牙科X线机的高频逆变技术、高频变压以及灯丝电路控制原理进行了编写研究。通过程序代码对于管电压以及管电流的控制，采用脉冲宽度调节方式（PWM）实现输出电压和功率的调节。X射线机控制程序通过硬件电路的AD采样经直流逆变、高频变压器、倍压整流形成数字电路经计算机编译得到单片机能够识别的二进制代码来控制机器，其成像极为清晰并且球管发射出的软射线得到了很好的抑制，降低了漏射线量，提高了成像效率，使常规X射线机的结构形状多样化，具有体积小、重量轻、低辐射（其辐射量、漏射线量仅为国家规定的百分之一），便于放置等特点。X射线机控制程序主要适用口腔门诊治疗前的检查，治疗过程中的效果对比，及治疗后的效果确定，对种植牙、根管治疗或微创手术患者带来极大的方便，是口腔门诊中不可或缺的软硬件设备。-X-ray machine control source code control principle of high-frequency inverter technology for high-frequency micro-focus dental X-ray machine, high frequency transformer, and filament circuit of the preparation of the study. By the program code for the tube voltage and tube current control, pulse width modulation (PWM) and to achieve the adjustment of the output voltage and power. AD sampling of the X-ray machine control program through the hardware circuit DC inverter, high frequency transformers, voltage doubler rectifier digital circuit is formed by the computer compiles the microcontroller can identify binary code to control the machine, its very clear imaging and bulb emits soft rays inhibition, reducing the amount of radiation leakage and improved imaging efficiency, diversification of structure and shape of the conventional X-ray machine, a small size, light weight, low-emissivity (radiation, radiation leakage was only one percent of the state regulations), easy to place charact Platform: |
Size: 59392 |
Author:sam |
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Description: This report focuses on DC to AC power inverters, which aim to efficiently transform a DC power
source to a high voltage AC source, similar to power that would be available at an electrical wall outlet.
Inverters are used for many applications, as in situations where low voltage DC sources such as batteries,
solar panels or fuel cells must be converted so that devices can run off of AC power. One example of
such a situation would be converting electrical power from a car battery to run a laptop, TV or cell
phone. Platform: |
Size: 5386240 |
Author:Marko |
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Description: 大功率变频器及其传动系统，国际名著，基本涵盖所有大功率变频的原理与应用，行业实践研发不可或缺的专业书籍-Power converter and transmission, international classics, covering all of the principles and applications of high-power inverter, industry practices indispensable professional development books Platform: |
Size: 25448448 |
Author:zhangyunlong |
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Description: 本书是“国际电气工程先进技术译丛”之一，该书分14章，介绍了各种大功率变频器的拓扑结构及原理、传动系统的组成，以及与此相关的各种先进控制策略。书中还同时详细地给出了多个专题的相关技术背景。可作为学术研究、产品开发等专业技术人员或产品工程师参考。介绍了大功率变频器及中压交流传动的最新发展技术，包括各种大功率变频器拓扑结构、脉冲调制方法、先进控制策略以及工业产品设计经验。包括250多个图表，对所有的主要理论和控制方法都给出了计算机仿真结果和试验波形。对实际产品设计和工业应用中各种问题，书中也进行了介绍。-This book is one of the "international electrical engineering advanced technology translations", the book chapter 14 points, this paper introduces all kinds of high-power inverter topology and principle, the components of the drive system, and the related all kinds of advanced control strategy.Is also given in detail in the book more than one project related technical background.Can be used as an academic research, product development and other professional and technical personnel, or product engineer reference.High-power inverter are introduced and the latest development of medium voltage ac drive technology, including all kinds of high power converter topology, pulse modulation methods, advanced control strategy and industrial product design experience., including more than 250 chart for all the major theories and control methods are the computer simulation results and experiment waveforms are given.For all kinds of problems in the actual product design and industrial application, th Platform: |
Size: 25448448 |
Author:xxl |
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Description: 本文首先介绍了逆变电源的发展现状及趋势。文中分析了适合数字控制的基于DSP 处理器 TMS320F2812 和智能功率模块（IPM）的逆变器硬件；介绍了 SVPWM逆变技术的基本理论，详细推导出了五种具体的 SVPWM 实现模式，并通过比较说明不同实现模式的优缺点，得到本课题采用的一种优化模式，设计研究了基于 SVPWM控制方式的软件；介绍了 Q 格式的基本理论，在程序中变量间的运算采用 Q 格式，提高了系统数据运算的速度和精度，实现了在定点处理器上进行高性能的浮点运算；详细讨论了片上模数转换模块的转换误差来源及影响，研究了减小转换误差的方法，采用了软件方法来对转换结果进行实时校正，提高了模数转换的准确度。-In the first, the current situation and development trends of the inverters are presented in the paper. Following is the analyses of hardware of the inverter suiting for digital control based on digital signal processor TMS320F2812 and the intelligent power module(IPM) the basic theory of space vector pulse width modulation (SVPWM) is introduced, five specific SVPWM modes of implementation are educed detailedly, following by the comparison which shows the advantages and disadvantages of different patterns, an optimization mode is got which is used in this project, and the software is designed based on SVPWM control pattern the basic theory of Q format is presented, variable Q format is adopted during the procedure for the calculation which improves the operation of the system data speed and precision, achieving the targeted processor for high-performance floating-point operation in the fixed-point DSP the error sources and effects of the on-chip analog-to-digital conversion module(A Platform: |
Size: 819200 |
Author:李游原 |
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Description: 使用DSP28335进行光伏逆变 ，这个程序是电子设计大赛应用程序。可以作为大功率光伏逆变开发的参考程序。(Use the DSP28335 for photovoltaic inverter, this program is the electronic design contest application. Can be used as a high-power photovoltaic inverter development of the reference program.) Platform: |
Size: 1022976 |
Author:头上两只角
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