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- Does a Matrix Converter Need Energy Storage Elements? 矩阵变换器真的不需要贮能元件吗?
- The multilevel matrix converter is modeled and simulated with its output controllability discussed. 对多电平矩阵变换器进行建模和仿真,并探讨了其输出能控性。
- It consists of fine elongated grains of beta-silicon nitride in a glassy phase matrix. 它是由位于玻璃相基中的贝塔氮化硅细长晶粒构成。
- J. M. Guiness , ”Advantages of five phase motors in microstepping drive”, IEEE, 1994. 李仲文,”微步进技术的新面貌”,机械月刊第十九卷第十一期,1993。
- Tang N P, Fang X Y.Simulation model of matrix converter with current hysterisis control strategy[J].Power Electrics, 1999,29(5):52-54. [9]汤宁平;方旭阳.;电流滞环控制的矩阵变换器的仿真模型[J]
- The simulated study on a matrix converter (MC) is carried out based on space vector modulation (SVM) under balanced and unbalanced input voltages. 摘要针对平衡与非平衡输入电压对空间矢量调制的矩阵变换器进行了仿真分析。
- The over modulation strategy of matrix converter(MC) is put forward on the basis of conventional AC/DC/AC MC control theory. 本文在分析传统交-直-交矩阵变换器控制原理的基础上,提出了矩阵变换器的过调制控制策略。
- The results show that the thermal fatigue resistance of ferrite matrix of S.G. iron is best and complex phase matrix is detrimental to increase in thermal fatigue resistance. 结果表明:铁素体基体球铁的抗热疲劳性能最好,复相基体组织不利于提高球铁的抗热疲劳性能。
- With the circuit analysis theory, the relationships between the parameters of input filter and the transient properties of the matrix converter are analyzed. 借助电路分析理论,分析了空间矢量调制矩阵变换器的暂态响应特性与输入滤波器参数的关系。
- Based on the principle of the two line voltage synthesis control for matrix converter,the method to indirectly generate the required PWM pulses is presented. 在分析了矩阵变换器双电压合成原理的基础上,针对该控制原理需要产生不规则的PWM脉冲,提出了一种新颖的脉冲间接产生方法。
- Based on the Direct Torque control , drive the induct motor by Matrix converter, apply The Direct Torque control theory to control induct motor and adjust speed . 本文的主要内容如下:从矩阵变换器的工作原理出发,对矩阵变换器建模分析,引出矩阵变换器的双空间矢量调制策略和虚拟等效电路;
- In this paper the speed sensorless technology based-on matrix converter(MC) direct torque control system(DTC-MC)and their fusion technology were studied. 研究基于矩阵变换器直接转矩控制系统应用无速度传感器技术以及将三者融合的技术。
- Closed-loop control is a reasonable method to ensure the performance of output voltage of Two-stage Matrix Converter (TSMC) by restraining multi disturbances. 摘要闭环控制是抑制多种扰动、保证双级矩阵变换器(TSMC)输出电压质量的有效方法。
- Take-off,pre-flight,repulsion,post-flight and landing constitute the five phases of a vault. 跳马的五步骤是: 踏起、第一腾空、推手、第二腾空和着地。
- Comparing with the AC-DC-AC converter, the commutation process of a matrix converter (MC) is more complicated due to having no natural free-wheeling paths. 摘要由于矩阵变换器(MC)电路没有续流路径,它的换流过程比交-直-交变换器更为复杂。
- Take-off, pre-flight, repulsion, post-flight and landing constitute the five phases of a vault. 跳马的五步骤是:踏起、一腾空、手、二腾空和着地。
- The matrix converter is a new cycloconverter with matrix switch sequences, which has a series of advantages and has become very hot problem of cycloconverter studies. 矩阵变换器是一种开关序列呈矩阵型的交-交变换器,具有一系列的优点。已成为交-交变换器研究中非常热门的课题。
- Yin-Yang and Five Phases Theory, Correlative Thinking is China's most naive thinking of the dialectical materialism. 摘要周易阴阳平衡、五行相生相克原则为中国最朴素的辩证唯物思想。
- The development of academy of classical learning can be divided into five phases: preparation,prosperity,subsidiary,resurgence,abolishment. 甘肃书院的发展大致经历了准备、兴盛、回落、中兴和废止几个阶段。
- This paper retrospects the distribution reform since reform and opening-up, and devide it into five phases, each phase is closely related to economic development and system reform. 本文系统回顾了改革开放30年来我国分配制度的变革,并将此划分为五个阶段,每个阶段的改革都是与当时的社会经济发展和市场经济体制改革紧密联系在一起的。