Space vector pulse width modulation ( SVPWM) and multi-step commutation method of bi-directional switches are the basic control strategies of the matrix converter. 空间矢量脉宽调制和双向开关多步换流方式是矩阵式变换器的基本控制策略。
This paper presents the basic principle of LLC series resonant converter, analyses its equivalent circuit model and the influence of different key parameters to its performance. 介绍了LLC谐振变换器的基本原理,分析了它的等效电路模型及其关键参数对性能的影响;
A way for reducing the load of Tor-sional vibration of basic oxygen converter 降低氧气转炉扭转振动载荷的途径
This paper briefly reviews the hard-switching technique and the soft-switching technique which are applied to switching power supply, analyzes the basic operation principle of phase-shifted zero-voltage-switching converter systematically. 论文介绍了开关电源的硬开关功率变换技术和软开关功率变换技术的特点,系统地剖析了基本的移相控制零电压开关PWM全桥变换器的工作原理。
The DC pole control system is emphasized, including basic control strategy, converter firing control and monitoring using EOC ( Extinction Of Current), reactive power control, system supervision and switching. 详细介绍了直流极控系统,包括其基本控制策略、基于电流过零信号的阀触发的监视和控制功能、无功功率控制、系统监视和切换功能。
Based on T-I type equivalent circuit, this paper introduces the basic principle of induction motor variable-frequency converter efficiency optimization strategies. All these strategies are classified, analyzed and compared. 本文从T-I型等效电路出发,综述了交流电机效率优化的基本原理,并对其基本策略进行了归类、分析和比较。
The soft-switching techniques have been developed from the basic resonant converter, quasi-resonant converter, multi-resonant converter and resonant dc link converter to the soft-switching PWM converters. 软开关技术已从基本谐振变换器、准谐振变换器和谐振直流环节变换器发展到软开关PWM变换器。
At last, experiment results are used to verify the basic control strategy of the converter and analyze the stable and transient performance of the converter. 最后通过实验分析验证了双PWM控制交-直-交电压型变频器的基本控制策略,分析了变频器的稳态运行特性和动态调节特性。
This article introduces basic check on torque converter, analyzing causes of malfunction in torque converter, bringing about several methods of maintaining converter. 介绍了液力变扭器的基本检查,分析了液力变扭器故障的原因,提出了一些检修液力变扭器的方法。
Basic principle of the proposed converter is analyzed in detail, together with its critical conditions, voltage ratio and stress of devices in the converter. 详细分析了这类变换器的工作原理、临界条件、输入输出电压变比以及各器件的应力。
The basic principle of the buck converter and boost converter was explained. The design idea and results were given. At last, the experimental results were given, which shows that the equipment is reliable and can meet the needs of the experiment for undergraduate students. 介绍开发本实验装置的背景,简述降压斩波电路和升压斩波电路的原理,并叙述实验装置的设计思路和设计结果,最后给出装置的实验结果,表明该实验装置性能可靠,符合本科生实验要求。
Complete sets of automation system for medium and small basic oxygen converter ( A) 中小型氧气转炉成套自动化系统(上)
Basic Level Net-work Communication in Converter System 转炉系统基础网络通讯
Based on the analysis of the basic flyback converter and bi-directional flyback converter, the basic operation principles of the flyback inverter were presented. 在对反激变换器和双向反激变换器的基本特性及控制方式分析的基础上,介绍了反激逆变器的构成及基本工作原理。
In this paper, the angle measuring system using in Single Gimbal Control Moment Gyroscope ( SGCMG) is discussed after introducing the basic theory of resolver-to-angle converter. 在介绍集成轴角变换器的工作原理后,详细介绍了用于控制力矩陀螺速率控制系统中的测角系统。
Based on the thermodynamic theory, the achievements obtained in hot metal pretreatment process and basic oxygen-blown converter and the coordination effects come from the combination of ladle metallurgy technology with these processes are reviewed. 在热力学原理的基础上回顾了铁水预处理、碱性氧气转炉炼钢的成果,及其与炉外精炼组合形成的协同作用。
This paper introduces the transmission characteristic of a hydraulic torque converter, analyses the basic performance parameters for describing a converter and their mutual relationship. 本文介绍了液力变矩器的传动特点,分析了评价变矩器的基本性能参数及参数间的相互关系。
The paper researches MPPT algorithm, applies sliding mode variable structure technology in DC/ DC converter control and designs the basic model of dynamic control according to the basic operation states of Buck-Boost converter, then testifies the stability of system control. 本文首先研究了最大功率点跟踪算法,将滑模变结构控制技术用于DC/DC变换控制之中,就Buck-Boost变换器的基本工作状态,设计了动态控制的基本模型,证明了系统控制的稳定性。
According to the present condition of converter process automation in Shandong Province, the paper points to automation model of converter process changed from static state controll to quasi dynamic state control on the basis of static state control model for realizing basic automation of converter process. 根据山东省转炉炼钢自动化概况,提出了在静态模型控制的基础上,实现转炉炼钢基础自动化,使静态控制转变为难动态控制的转炉炼钢自动化模式。
Optimizing the steelmaking process and configurations to realize the less slag basic oxygen steelmaking in converter 优化工艺配置实现转炉少渣量吹炼
And using MATLAB software programming, the basic properties that torque converter. 并利用MATLAB软件进行编程计算,得出液力变矩器基本性能。
Paper from matrix converter topology, switching function, commutation strategy, introduced the basic principles of matrix converter. 文章概述了矩阵式变换器的拓扑结构、开关函数、换流策略。
Based on the analysis of the basic Boost FB converter, this dissertation proposes a family of PWM modulation strategies, and discusses the possibility to achieve soft-switching. 本文从Boost型全桥变换器的基本电路结构出发,提出了一族PWM控制策略。针对这些控制策略,讨论了它们实现开关管软开关的可能性。
In this paper, the fundamental of solar energy power generating and the basic operation principle of DC-DC converter are analysed firstly, then introduces the working principle of the Bi-directional DC-DC converter, and the structure of main circuit of it is studied from simplest to more complex. 论文首先分析介绍了太阳能光伏电池发电机理及DC-DC变换器的基本工作原理。然后由浅入深引出双向DC-DC变换器的工作原理及不同的主电路拓扑结构。
Analysed limited double polarity zero voltage and zero current switching ( LDP-ZVZCS) process. Derived the basic Buck converter model, then established the full-bridge ZVZCS converter mathematical model based on the effective duty ratio. 3. 详细分析有限双极性全桥变换器零电压零电流软开关(ZVZCS)工作过程;在Buck变换器模型基础上,建立了基于有效占空比的ZVZCS全桥变换器数学模型。
The main content is introduced as follows: First of all, the emphasis is laid on analyzing and Introducing the basic theory of Digital Down Converter ( DDC) and polyphase filters, and analyzing the evolution of polyphase filters. 主要内容为:首先,着重介绍了数字下变频和多相滤波的基本理论,以及基于多相滤波的理论的一些算法演变,这些理论是后续各章工作的理论基础。
In this paper, after in-depth studying and researching the basic principles of DC/ DC converter, a new type of step-up switching power supply chip was designed. 本文通过对DC/DC变换器基本工作原理的深入学习研究,设计了一款新型的升压型开关电源芯片,具有输入电源电压范围宽、转换效率高、片外电路简单等特点。
After analysis of the basic topology, bi-directional Buck-Boost converter is selected to apply to this paper. 通过比较分析,选用双向Buck-Boost变换器为本文所研究的双向直流变换器。
Then, the second strategy is chosen to improve basic phase-shift ZVS DC/ DC converter considering about feasibility and practicality. The simulation result shows that it has achieved desire target. 然后,从可行性和实用性方面综合考虑,最后选择了第二种方式对基本移相全桥ZVS直流变换器进行改进,从仿真结果看,基本达到了预期的目标。