摘要功率变换器在传统的电路中应用广泛，功率半导体开关器件的发展促进了电力电子变流技术的大力发展，出现了以脉宽调制(PWM)技术为基础的各种功率变流器。其中，逆变器广泛应用于电机驱动、不间断电源、感应加热、有源滤波器分布式交流电源系统静态无功发生器和补偿器等场合。今天的功率变换技术基于两种传统的变换器拓扑：电压源（或电压馈电）和电流源（或电流馈电）变换器（或逆变器，取决于功率流方向）。电压源变换器和电流源变换器存在理论上的局限性，在许多应用场合造成装置造价高，效率低。
Z 源功率变换器为功率变换提供了一种新的变换器拓扑和理论。它可以克服前述的传统电压源和电流源变换器的不足。Z 源功率变换器引进了一个阻抗网络，将主变换器电路与电源或负载耦合。因此，Z 源功率变换器既不是一个电压源变换器，也不是一个电流源变换器，不存在前述的问题。
   第一章主要介绍了传统的功率变换技术，主要是基于传统的两种变换器的拓扑的结构——电流馈电变换器和电压馈电变换器或者叫做电压源变换器和电流源变换器。
   第二章主要介绍了一种新型的变换器：Z源功率变换器拓扑结构，这种功率变换器为电路中功率变换提供了一种新的变换器拓扑和理论。
   第三章主要介绍了多载波控制策略的设计
   第四章主要介绍了基于Matlab的Z变换器多载波控制仿真及结果分析22906
毕业论文关键词：Z源变换器，多载波控制，系统仿真
 ABSTRACT
Power converters are widely used in conventional circuits, the development of power semiconductor switching devices and vigorously promoted the development of power electronic converter technology , the emergence of a pulse width modulation (PWM) technology based on a variety of power converters . Which is widely used in motor drive inverters , uninterruptible power supplies, induction heating , active filters distributed AC power systems static var compensator generator and other occasions . Today's power conversion technology is based on two conventional converter topology : voltage source ( or voltage-fed ) and a current source ( or current-fed ) converter ( or inverter , depending on the power flow direction ) . A current source converter and voltage source inverter theoretical limitations exist , resulting in many device applications , high cost, low efficiency.
Z source of the power converter to provide a new transform converter topology and theory. It can overcome the aforementioned deficiencies of traditional voltage and current source converter. Z-source impedance of the power converter introduced a network , the main converter circuit coupled to the power supply or the load . Thus , Z is neither the source of the power converter a voltage source converter is not a current source converter , the aforementioned problem does not exist.
   The first chapter introduces the traditional power conversion technologies, mainly based on the traditional two converter topology structure - current-fed converter and voltage-fed converter or voltage source converters and called a current source inverter .
   The second chapter introduces a new type of converter : Z source power converter topologies , such as the power converter in the power conversion circuit provides a new converter topology and theory.
  The third chapter describes the design of a multi-carrier control strategy
 The forth chapter introduce the result depend on the matlab
Keywords: Multicarrier Modulation  Z source  converter
  目    录
摘    要    II
ABSTRACT    III
目    录    1 Z源变换器多载波控制策略设计+电路图:http://www.youerw.com/zidonghua/lunwen_15752.html