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: In the paper, a space-vector pulsewidth-modulation
(SVPWM) inverter is proposed for constant-power operation of a
two-phase induction motor. Platform: |
Size: 344064 |
Author:ck |
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Description: 基于DSP的空间矢量PWM驱动恒
两相异步电动机的功率运行-DSP Based Space Vector PWM Drive for Constant Power Operation of Two-Phase Induction Motors Platform: |
Size: 456704 |
Author:liu ming |
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Description: We propose a discrete nonlinear controller, developed
in a synchronous frame, for a parallel three-phase boost
converter consisting of two modules. The basic idea, however, can
be extended to a system with modules. Each of the closed-loop
power-converter modules operates asynchronously without any
communication with the other modules. The controller stabilizes
the currents on the -axes and limits the flow of the pure-zero
sequence current. It combines the space-vector modulation
scheme with a variable-structure control, thereby keeping the
switching frequency constant and achieving satisfactory dynamic
performance.
Index Terms—Discrete nonlinear controller, modules, parallel
multiphase converters, space-vector modulation, switching
frequency, synchronous frame, three-boost converters, variablestructure Platform: |
Size: 1159168 |
Author:imed |
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Description: This project consists of two back to back pwm converters used for simulation of traction load in normal operating mode. The first side is connected to a single phase network and uses hysteresis current control. The second side is connected to a three phase network and uses space vector modulation for controlling its inverter. Platform: |
Size: 31744 |
Author:amir |
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Description: 论文首先对有源电力滤波技术产生的背景!发展现状以及发展趋势作了详细的阐述,分析了有源电力滤波器的优点及其丰富的功能,除补偿谐波电流外,还可补偿基波无功!平衡三相电压!抑制电压闪变等"分析比较了有源电力滤
波器各种补偿电流跟踪控制方法,重点研究了空间电压矢量滞环控制和单周控制这两种控制方法
-Papers! Development status and trends detailed exposition of the first active power filter technology for the background, analyzes the advantages of APF and its wealth of features, in addition to the compensation of harmonic currents, but also compensate for the fundamental Reactive! balanced three-phase voltage! suppress voltage flicker and other " active power filters are analyzed and compared various compensation current tracking control method focuses on the space voltage vector hysteresis control and single-cycle control of these two control methods Platform: |
Size: 6181888 |
Author:huijuan |
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Description: 数字控制电力电子技术，主要讲述数字控制原理以及在电力电子技术中的应用，非常适合功率电子方面的人学习-Digital Control in Power Electronics
This book presents the reader, whether an electrical engineering student in power electronics
or a design engineer, some typical power converter control problems and their basic digital
solutions, based on the most widespread digital control techniques. The presentation is focused
on different applications of the same power converter topology, the half-bridge voltage source
inverter, considered both in its single- and three-phase implementation. This is chosen as
the case study because, besides being simple and well known, it allows the discussion of a
significant spectrum of the more frequently encountered digital control applications in power
electronics, digital pulse width modulation (DPWM) and space vector modulation (SVM),
to inverter output current and voltage control. The book aims to serve two purposes: to give
a basic, introductory knowledge of the digital control techniques applied to power converters,
and to raise the interes Platform: |
Size: 1883136 |
Author:l李华 |
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Description: 首先，介绍了交流调速及其相关技术的发展现状和发展趋势，以及交流调速系统的主要控制策略。选用工业变频器用异步电机作为研究对象，利用坐标变换理论，分析了异步电机在三相静止坐标系、两相静止与旋转坐标下的电机基本数学模型及其矢量控制原理。利用转子磁场定向的矢量控制技术，实现了异步电机定子电流的转矩分量和励磁分量的解耦。分析了空间矢量脉宽调制算法以及实现方法，最后设计了异步电机的双闭环矢量控制系统。
然后，利用Matlab/Simulink搭建了异步电机数学模型，建立了基于电压空间矢量脉宽调制的异步电机矢量控制模型，包括电机模块、坐标变换模块、磁链观测模块、PI 调节模块、SVPWM 模块等，进行了电压电压空间矢量控制的仿真验证。-this paper introduced the current condition and future trend of AC speed-adjustmentSystem and its main control strategies, on the base of the asynchronous motor used in industrial frequency converter , the mathematical model under three-phase static coordinate system , two-phase static coordinate system and circular coordinate system and the principle of vector conttrol are analyzed by using the theory of coordinate transformation . Then the components between torque and magnetic field of stator winding currrent are decoupled which uses the rator-field-oriented technology.After space vector PWM modulation algorithms and implementation methods have been analyzed, dual closed-loop vector control system of asynchronous motor isworked out. Platform: |
Size: 1712128 |
Author:zph |
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Description: 采用S函数编写的空间矢量扇区检查模块，利用两相静止坐标系下的电压分量直接判断所处扇区，可用于异步电机，同步电机的Matlab矢量控制仿真-S-function written using space vector sectors check module using the voltage component two-phase stationary coordinate system in which the judge directly sector, can be used for asynchronous motors, synchronous motor vector control simulation Matlab Platform: |
Size: 177152 |
Author:高磊 |
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Search - two phase space vector