The conditions of voltage between contactors and current in main circuit under different using types are analyzed in detail, then designed the control sequences with working mode AC1-AC4.
详细分析了交流接触器在不同使用条件下的闭合与分断时触点两端电压与回路电流情况,并研究了AC1~AC4工作制下的控制时序。
Repetitive control is used to reduce voltage distortion under nonlinear loads and instantaneous feedback control is designed to quicken the dynamic response process under abrupt load variation.
系统利用重复控制抑制非线性负载下的电压畸变,利用瞬时值反馈控制加快负载突变时的动态响应过程。
At rated control supply voltage less than 35% under-voltage should prevent breaker from closing.
在额定控制电源电压低于35%时,欠电压脱扣器应防止断路器合闸。
This paper presents a new converter control algorithm for the direct drive permanent magnet wind generator under the unbalanced three-phase source voltage.
提出了一种用于电网侧三相电压不平衡情况下的永磁直驱式风力发电机的逆变控制算法。
Full speed within sections of constant flux and constant voltage constant power control, we can get the torque - speed characteristics under the control.
在全速范围内分段进行恒磁通和恒电压恒功率控制,得到控制下的转矩—转速特性曲线。
State feedback pole assignment technique is used to gain fast tracking of the output voltage, and a repetitive control is designed to reduce voltage distortion under nonlinear loads.
系统利用状态反馈极点配置获得了电压跟踪控制的快速性,利用重复控制较好地抑制了非线性负载工况下的电压畸变。
Taking MIG welding as example, under each control modes, the welding parameters such as the welding current, welding voltage, pulse frequency, etc.
以铝合金MIG焊为例,在每种脉冲模式下,分别改善焊接电流、焊接电压、脉冲频率、占空比等参数进行焊接并采集输出电流波形。
Lastly, safety can be increased largely because of using DC electrical source and control voltage under 36v.
最后,由于采用直流电源供电并且电压控制在36伏以下,因此安全性大大提高。
Under this control strategy, the PWM converter output voltage characteristics is improved if load current vary and line voltage vary.
本文提出一种新的非线性控制方法,使得PWM开关变换器的输出电压,在负载干扰和电源电压干扰下,具有优良的动态特性。
Under the actual operation lim its of motor voltage and current , a high-efficiency optimum torque control met hod for poly-phase PMSM is proposed.
在电动机实际工作的电压和电流约束条件下,提出了多相永磁电动机的一种最佳转矩控制方法,该方法能够使电动机在给定的控制电流下获得最大的输出转矩。
The self-adaptable control of output voltage could be realized under certain range by adding a APFC in ultrasonic generator and adjusting voltage feedback network with digital potentiometers.
本文在超声发生器中加入功率因数校正电路(APFC),并利用单片机控制数字电位器实现了对电压反馈网络的调节,从而实现APFC输出电压在一定范围内的自适应控制。
The paper presented a mathematic model and control strategy on a three-phase voltage type rectifier under indirect current control.
该文对基于间接电流控制三相电压型整流器的数学模型和控制策略进行研究。
This paper presents a new method that PIR-P dual loop control based on rotating coordinates to improve the output voltage symmetry of inverter under the serious unbalanced load condition.
为改善逆变器系统在严重不平衡负载情况下输出电压的对称性,文中提出一种新颖的控制策略——旋转坐标系下的PIR - P双环控制。
Under the oxygen activation mode of pulse way, there are two ways to control neutron-emitting :1)neutron tube anode high voltage control, 2)neutron tubetarget voltage control.
在脉冲方式的氧活化工作模式下,控制中子发生器发射中子的方式有两种:控制中子管阳极高压或控制中子管靶压。
The spot welding tests prove the microcomputer control system has satisfactory constant current monitoring effect under different main voltage and load conditions.
并通过不同网压和不同负载下的点焊试验,证明该微机系统可获得满意的恒流监控效果。
PVC insulated cables used to control and jacket for the 450/750 V AC voltage and under control, monitor and protect the loop line and other occasions, the wires used to control a crane control cables.
聚氯乙烯绝缘和护套控制电缆用于交流电压为450/750V及以下控制、监控迴路及保护线路等场合,该电线应用于控制一种吊机用控制电缆。
Under the control of the quality guarantee system of ISO9001:2000, the products of low-voltage assemblies switchgear have passed through the attestation of "3C" by China Quality Attestation Center.
产品在完善的ISO9001:2000质量保证体系中受控,生产的低压成套开关设备均通过中国质量认证中心首批“3C”认证;
Under the control of the quality guarantee system of ISO9001:2000, the products of low-voltage assemblies switchgear have passed through the attestation of "3C" by China Quality Attestation Center.
产品在完善的ISO9001:2000质量保证体系中受控,生产的低压成套开关设备均通过中国质量认证中心首批“3C”认证;
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