PFC circuitry operates in critical conduction mode(CCM)and provides for high PF, low THD and DC bus regulation.
内部的功率因数校正（PFC）电路以临界导通模式（CCM）工作，可获得高功率因数、低总谐波失真（THD）及直流电压调整。
AC power is rectified and filtered by BR1 and C1 to create the high voltage DC bus applied to the primary winding of T1.
交流电源停止整流和滤波即br1和C1创立高压直流总线应用到T1的初级绕组。
Linking of the host and extensions is based on DC bus mode, both energy and communication signal transfer through DC bus.
主机和分机采用直流母线的方式连接，能量和通信信号都通过母线传递。
To make the servo system have the expected its, it s especially important for selection of DC bus voltage in servo driver.
在伺服系统中要使系统能够满足所期望的性能，伺服系统驱动器直流母线电压的选择尤为重要。
The DC bus voltage and the power factor of the PWM rectifier are regulated by three nonlinear PI controllers with high performance.
采用双环结构，用三个非线性PI环节实现了对整流器直流电压与功率因数的高性能控制。
The shunt switching unit was designed to maintain the stability of DC bus and test the performance of DC bus of the solar array simulator.
为了维持直流母线的电压稳定，还设计了稳压调节器，并对太阳电池模拟器进行单支路和阵列实验来测试其直流母线特性。
Furthermore, the method is used to control the DC bus voltage of the VIENNA rectifier, with enhanced control accuracy and system stability.
然后将所提方法应用到VIENNA整流器直流母线电压控制中，提高了控制精度，并增强了系统的稳定性。
One of the advanced features of the Common DC bus components is the Vacon-patented methodology of using parallel Active Front-End (AFE) units.
普通DC总线产品零件的其中一个优势是伟肯专利的使用平行的(afe)主动前端理论。
The stability of the dc bus capacitor voltage is directly connected with the compensatory capability of an voltage source active power filter.
电压源型有源电力滤波器直流侧电容电压的稳定程度对补偿性能有直接的影响。
The equipment which connected in the DC bus includes smoothing reactors, capacitors, voltage dividers, optical current transducers and arresters.
连接于极线的输电设备主要有平波电抗器、滤波电容器、直流电压分压器、光学电流传感器、直流避雷器等。
Experiment results show that the proposed method can support the inverter DC bus voltage, and reduce the impact of voltage sags on VFD effectively.
试验证明上述方法在发生电压暂降时，很好的支撑了变频器直流母线电压使其保持基本不变，有效地降低了电压暂降对变频调速装置的影响。
It has introduced the survey method for bus parameter, advances a simple and practical survey method of insulating resistor to the ground for DC bus;
介绍了母线参数的测量方法，提出了一种简单、实用的测量母线对地绝缘电阻值的方法；
The7years 'applicable practices indicate that the frequency modulation technology with dc bus voltage ripples is very effective to suppress acoustic resonances.
7年的使用实践表明，直流脉动电压频率调制技术对抑制声谐振现象十分有效。
The duty ratios of switches in each switching cycle can be directly obtained by simple calculation using two phases source currents and dc bus capacitor voltage.
只需检测两相电源电流和直流侧电容电压，通过简单计算就可直接求出每个开关周期内各开关的占空比。
SVPWM technique have many good qualities, such as less pulsating torque, high usage of DC bus voltage, less switching loss, better high-speed regulation performance.
SVPWM具有较高的直流电压的利用率，开关损耗小，从而实现了高性能的逆变输出。
It is proposed a novel hybrid asymmetric 9-level inverter in which an asymmetric 5-level inverter and an H-bridge inverter with equal dc bus voltage are series connected.
介绍了一种新型混合不对称九电平逆变器，它由一不对称五电平逆变器和一全桥逆变器级联而得，级联逆变器的直流母线电压相等。
The simulation results indicate that the system has good dynamic performance, DC bus voltage is stable and has small fluctuations, and it satisfies the demand of DFIG excitation.
仿真结果表明，双馈发电机控制系统具有良好的动态控制性能，直流母线电压稳定，波动小，能够满足双馈发电机交流励磁的需要。
Additionally, damage may occur to the precharge circuitry if this is attempted because the precharge resistor will remain in circuit with the DC bus, and precharge never completes.
此外，损害可能发生的预充电电路如果试图这样因为充电电阻将保持电路的直流总线，和充电没有完成。
According to the relationship of rotational speed, power and DC bus voltage, observing rotational speed by using DC bus voltage is proposed to realize none direct speed measurement.
从发电机转速、功率和直流母线电压之间的相互关系出发，提出利用直流母线电压进行转速观测实现无速度传感器。
In this paper, soft startup and impact suppression techniques are proposed to guarantee no voltage overshoots or sags in DC bus during startup and grid connection dynamic processes.
本文提出了一种软启动和并网冲击抑制技术以解决启动和并网过程中直流电压大幅波动的问题。
The all-digital ac frequency conversion control system based on the common DC bus can meet the requirements of high speed and high reliable control performance of the high-speed paper machine.
这种基于公共直流母线的全数字交流变频控制系统适用于高速纸机的高速度、高可靠性控制性能的需要。
The PWM control strategy with 3-th harmonic in addition is presented for four-leg three-phase inverter, the inverter can deal with unbalanced load and has a high utilization of dc bus voltage.
本文将三次谐波注入的PWM控制方案应用到四桥臂三相逆变器中，可以带非对称负载且具有较高的电压利用率。
This paper describes a new method by which the positive, negative resistance to ground of DC bus and branch could be tested precisely by mere use of universal instruments and standard resistors.
提出一种仅用万用表和标准电阻就可以准确测量出直流母线和支路负荷正对地电阻、负对地电阻的新测量方法，这种方法能准确查找绝缘低故障支路；
The experimental and simulative waveforms of magnet current and DC bus current inosculate well, which indicates the validity of the proposed mathematical model of chopper and its control method.
磁体电压、磁体电流及直流母线电流仿真与实验波形吻合较好，所应用的斩波器数学模型及其控制方法能实现对超导磁体快速稳定地充、放电和续流。
Subsequently, a novel controller for DC bus voltage regulation is put forward according to the small signal model based on the instantaneous power balance in AC and DC sides of three-phase SAPF.
然后根据交流侧和直流侧的功率平衡方程，推导了电压环的小信号模型。最后基于该模型设计了一种高动态性能的直流电压调节器。
Three soft start-up technique for voltage loop are compared with each other, which are the reference of DC bus voltage gradually increasing, constant charging current and different PI modulation.
电流环软启动通过输出电流指令递增实现，电压环软启动则比较了直流侧电压指令逐步升高法、恒定电流充电法、变PI参数调节法三种策略。
This invention discloses an assembly method of aluminum electrolytic rectifier DC bus-bar, especially to an indoor aluminum electrolytic rectifier DC bus-bar magnetic vortex defend solving method.
本发明公开了一种铝电解整流所直流支母线的配置方法，特别是涉及一种户内式铝电解整流所直流支母线防磁涡流的解决方法。
This invention discloses an assembly method of aluminum electrolytic rectifier DC bus-bar, especially to an indoor aluminum electrolytic rectifier DC bus-bar magnetic vortex defend solving method.
本发明公开了一种铝电解整流所直流支母线的配置方法，特别是涉及一种户内式铝电解整流所直流支母线防磁涡流的解决方法。
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