1) three-level frequency conversion
三电平逆变
1.
The developing status of electrical power electronic components correlative common key technologies of inverter "converter technology"and development trend of update generation components were introduced in this paper,at the same time expatiated the dual-PWM variant frequency;12 pulse rectification、three-level frequency conversion、matrix control frequency conversion and so on latest technique.
本文对变频器的共性关键技术—"变流技术"所涉及的电力电子器件的发展简况、新一代器件以及发展趋势进行了介绍,同时对双PWM变频、12脉冲整流、三电平逆变、矩阵控制变频等最新技术进行了阐述。
2) three-level inversion circuit
三电平逆变电路
1.
Its major structure was the three-level inversion circuit.
其主体电路为三电平逆变电路,包括开关器件MOSFET及其驱动电路开关器件的保护电路,对电路的各个环节进行处理。
3) three-level inverter
三电平逆变器
1.
Research on three-level inverter based on asynchronous motor vector control;
基于三电平逆变器的异步电机矢量控制研究
2.
Space vector pulse width modulation method for three-level inverter;
三电平逆变器的空间矢量脉宽调制方法
3.
A novel method of DC-voltage balancing control for three-level inverter;
三电平逆变器的直流侧电压平衡控制新方法
4) two/three-level inverter
两/三电平逆变桥
5) three-level inverters
三电平逆变器
1.
This thesis first introduces the operating principle of three-level inverters briefly,then it gives the modulating calculation of SVPWM,and finally it makes an analysis of the influence on(voltage) space vector exerted by the unbalance of neutral potential and advocates the(improvement) of SVPWM calculation,during which the compensation control of voltage vector is implemented.
首先简介三电平逆变器的工作原理,然后给出SVPWM控制的算法,最后分析中点电位不平衡对电压空间矢量造成的影响,并对SVPWM的算法进行改进,实现对电压空间矢量的补偿控制。
2.
In order to study three-level inverters using in high voltage,high power motors drive applications,the switch model and topological structure were analyzed in detail,the mathematic model of the asynchronous motor was presented,then a method that SVPWM control convert bridge was proposed.
为了研究三电平逆变器在高压大容量电机变频调速中的应用,详细分析了三电平逆变器的开关模型和拓扑结构,得到了在三电平逆变器供电下异步电机调速系统的数学模型,提出了一种以空间矢量脉宽调制实现对逆变桥控制的方法。
3.
Recently, three-level inverters have been becoming increasingly popular in medium-high voltage ac drive systems and FACTS equipments, mainly because of their high voltage-capability, high output quality, low switching losses and low EMC concerns.
近年来,三电平逆变器由于具有输出容量大、输出电压高、电流谐波含量小的优点,在中高压调速领域、交流柔性供电系统的无功补偿中得到了广泛的应用。
6) three level inverter
三电平逆变器
1.
Research on three level inverter main circuit and modulation strategy
三电平逆变器主电路及调制策略研究
2.
This paper presents the model of drive system of three level inverter synchronous motor.
推导了三电平逆变器供电下的同步电动机数学模型,分析了同步电动机直接转矩控制原理,在此基础上提出了基于三电平逆变器供电的同步电动机直接转矩控制策略。
3.
By analyzing the control demand for three-level inverter, a SVPWM control integrated circuit(IC) for three level inverter has been developed using the state-of-the-art field-programmable gate array (FPGA) technology ,and a simple and effective solution for AC drivers is provided.
在分析三电平逆变器控制要求的基础上,利用现场可编程门阵列(FPGA)技术开发了一种三电平空间矢量脉宽调制(SVPWM)控制集成电路,为交流驱动提供了一种简单有效的方案。
补充资料：半控型逆变电路
由半控型器件组成的逆变电路。半控型器件指控制极在器件导通后即失去控制作用的器件。例如普通晶闸管及其大部分派生器件即属于这一类。为了关断这类器件必须采用阳极关断方式，即利用反向阳极电压以迫使通态电流下降并恢复电压阻断能力。作为一种可控开关，这类器件的控制功能是不完整的，故泛称半控型。反向阳极电压又称换流电压。根据该电压来源不同，可有以下两种关断方式：①负载关断方式，换流电压取自呈容性负载电压；②独立关断方式，换流电压由独立的附加关断电路产生（常用于感性负载）。
和全控型逆变电路相比，半控型逆变电路的容量比较大，技术也较成熟。但主电路结构在感性负载条件下，由于必须增设附加关断电路而显得复杂。这不仅增加体积、重量和装置成本，而且也降低装置的效率和可靠性。因而在中、小容量范围内，半控型电路逐渐由全控型取代。
和全控型逆变电路相比，半控型逆变电路的容量比较大，技术也较成熟。但主电路结构在感性负载条件下，由于必须增设附加关断电路而显得复杂。这不仅增加体积、重量和装置成本，而且也降低装置的效率和可靠性。因而在中、小容量范围内，半控型电路逐渐由全控型取代。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条