This device can be used in three phase converter assembly using thyristors.
可在三相晶闸管变流装置中应用。
At last, an parameter design of RC snubber for thyristors in a engineering project is presented.
最后结合工程实例,给出了一个晶闸管阻容吸收参数设计的具体步骤。
All of these have relied on phase controlled thyristors (PCT), offering the higher power control.
所有这些都依赖于能提供更大功率控制的相控晶闸管(PCT)。
Because the thyristors work instantaneously, low current thyristors are used, then cost is reduced.
晶闸管是瞬间工作,可采用小电流管,使成本降低。
The reason is that soonest at the next current zero-crossing the firing pulse of thyristors can be reset.
通常的短路故障电流会大大高于这个倍数,而软启动器的晶闸管本身是没有短路分断能力的。
Whether the turn-on time of the same arm thyristors was uniform or not, the turn-off time was always identical.
无论导通时刻是否一致,同臂号晶闸管的关断截止时刻总是相同的。
The design uses thyristors, diodes and other devices designs a speed, current double-loop SCR DC converter system.
此设计利用晶闸管、二极管等器件设计了一个转速、电流双闭环直流晶闸管调速系统。
Thyristors can be classified as standard, or slow phase-control-type and fast-switching, voltage-fed inverter-type.
晶闸管可分为标准型(即慢相控制型)和快速转换电压反馈变极型。
The structures and operative principles of Field Controlled thyristors (FCT), a new type of thyristors, are described.
本文描述了新型晶闸管FCT的结构和工作原理。
This paper presents a new structure of thyristors with a thin emitting region based on the pin diode model for thyristors.
在晶闸管的pin二极管模型基础上,提出了薄发射区晶闸管新结构。
Then it classified the faults (within 3 thyristors faults) as 11 kinds or 115 fault states according to the aberrance rule.
然后它列为11种或115的故障状态故障(3晶闸管故障)根据畸变规则。
YBCO samples, in parallel with a resistor, are connected in series with a transformer whose current is controlled by thyristors.
YBCO涂层导体与电阻并联,再与变压器串接,电流冲击由晶闸管控制导通和关断。
The performance of thyristors and the parameters of snubber circuit can significantly affect the voltage distribution in converter valves.
晶闸管器件性能和缓冲电路参数会影响换流阀内电压分布特性。
The number of the selected thyristors to be assembled in series is different, which depends on the peak voltage requirements of the grid used.
根据所使用电网的峰值电压要求,选择可控硅串联的数量不同。
Today Integrated Gate Commutated Thyristors (IGCT) are widely used for different applications such as medium voltage drives (MVD) and interties.
目前,集成门极换向晶闸管(IGCT)被广泛地应用于不同的领域,诸如中电压传动(MVD)和扣联锁电力网等。
Ways of balancing the phase current of an induction motor operating with unbalanced supply and fault diagnostics of the thyristors are discussed.
提出了在异步电动机供电不平衡的情况下平衡相间电流的方法,给出了晶闸管故障检测的方法。
Fundamental principles, indices of performances and circuit structures of reduced voltage starting through thyristors are described in the paper.
介绍晶闸管降压起动的基本原理、性能指标及其电路结构。
Two AL808 IRs which can automatically tune PID parameters of the system with expert intelligence, thyristors as the output and thermocouples as the input.
应用AL808智能仪表,采用先进的专家智能PID自整定技术,自动整定加热系统的PID参数。 模块输出为可控硅过零触发,输人为热电偶信号。
In the developing course, the main technique measures are: improving the trigger circuit of thyristors to eliminate the unsymmetry of the trigger pulse phase;
在研制过程中采取的主要技术措施是:改进晶闸管触发电路,消除了触发脉冲相位的不对称;采用霍尔元件作为电流检测元件,能检测出变压器的实际电流值;
This paper analyses the blocking voltage, forward voltage drop, photoresist mask design and gate-triggering and dynamic characteristics of high-power thyristors.
本文对大功率可控硅的阻断电压问题、正向压降问题、光刻掩模板的设计问题、控制极特性问题以及动特性问题进行了分析。
This paper presents reversible digital field regulator with DSP and IGBT, which is substituted for current analogue field regulator with thyristors as power element.
本文提出以DSP和IGBT为核心来设计数字式可逆励磁调节器,以取代现有的以晶闸管为功率元件的模拟控制的励磁调节器。
The main control system includes the synchronous signal generating circuit, the testing circuit of thyristor cut-off voltage and the trigger circuit of the thyristors etc.
论述了主要硬件电路的设计方案,其中包括晶闸管两端电压检测、三相电源同步信号检测等。
To the scheme of mechanical on load tap changer combined with thyristors, its characteristic of arc suppression is analyzed in details, and a corrected scheme is then present.
介绍了有载分接开关切换波形测试的意义、原理和方法,指出现场测试经常遇到的问题并分析了其原因,提出了根据现场所测波形判断有载分接开关能否正确切换的方法。
The paper presents a new PWM CSI using only one gate turn off switch and six thyristors. The converter uses active commutation to realize PWM in a conventional thyristor-based CSI.
该文提出一种采用一个门极可关断开关和六个晶闸管的新的PWM电流源逆变器,此电路通过有源换流来实现传统的晶闸管CSI的脉宽调制。
The theory of ground automatic convert method is detailed in the paper, is analyzed how to select capacity of thyristors and transformers, and analyzed process of turning off thyristors.
本文对这种新的地面自动过分相方案,进行详细的解释,对晶闸管和变压器容量的选择进行分析,对晶闸管关断过程进行详细的分析。
This paper researches on three phase capacitor transients, presents a combined switch constructed of contactor and low current thyristors to realize non surge close and non arcing break.
对三相电容器的暂态过程进行了研究,提出采用接触器和小电流晶闸管组成混合开关,实现了合闸时无冲击电流及分断时无电弧。
According to the arrangement of thyristors in HVDC converter valve, the configuration of a high voltage resistive probe used for impulse voltage measurement has been designed especially.
根据高压换流阀中晶闸管的布置情况,设计了冲击电压测量用电阻型传感器探头的外形结构。
The power electronic model of thyristor controlled series compensation (TCSC) consisting of capacitors, inductors, thyristors, metal oxide varistors (MOV) is led into digital simulation.
在可控串联电容补偿装置(TCSC)的研究中,用电容、电感、晶闸管、MOV等元件构造TCSC器件模型。
The power electronic model of thyristor controlled series compensation (TCSC) consisting of capacitors, inductors, thyristors, metal oxide varistors (MOV) is led into digital simulation.
在可控串联电容补偿装置(TCSC)的研究中,用电容、电感、晶闸管、MOV等元件构造TCSC器件模型。
应用推荐