电流建立阶段的电流响应主要取决于直流母线电压。
In the current set-up phase, the current response mainly depends on the DC voltage.
直流母线电晕特性是换流站选择母线的主要考虑因素。
The HVDC busbar corona characteristic is the main factor taken into account for choosing busbar of HVDC converter substation.
由此,高精度地检测直流母线电流,抑制高次谐波成分。
Thus, a direct bus current can be detected precisely and an upper harmonics component is inhabited.
确定了直流母线电压线性采样电路以及迟滞电压比较电路。
The linear sampling circuit of direct current bus and the hysteresis voltage comparator circuit are confirmed.
通过这两种抑制策略的叠加,大幅减小了直流母线电压的波动。
Through the superposition of these two strategies, the fluctuation of DC-bus voltage was significantly reduced, which was valid by simulation results.
降低漏源极直流母线电压影响干扰信号按傅立叶展开式的全部频带。
The decrease of the drain-source voltage or bus voltage affects the entire spectrum evenly according to Fourier theory.
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。
Linking of the host and extensions is based on DC bus mode, both energy and communication signal transfer through DC bus.
交流电动机所转换的能量可以通过在与直流母线电容并联一个电阻来消耗。
The energy recovered during the braking of the ac motor can be dissipated in a resistor, which can be switched in parallel with the dc-bus capacitor for this purpose in Fig. 1-5B-1.
并提出直流系统应尽量按分段直流母线进行配置,从而使查找环境得到优化。
It also suggests that the DC feeders apart connecting to detached bus should better for detection condition.
实际运行表明基于该技术构建的直流母线绝缘检测系统运行稳定、可靠、精度较高。
The transforming enhanced system stability and anti-disturbing. Actual application shows that the system is steady, reliable and high accurate.
并以多台ept交直流母线混合并联系统为基础分析了并联ept的输入级控制策略。
And the load sharing control of the input stage is also analyzed by the AC and DC hybrid parallel system with several EPTs.
其次在对PWM整流器动态分析的基础上,提出了直流母线电容准确计算的解析表达式。
Secondly, based on the dynamic analysis of the PWM rectifier, a precise analytical expression for the computation of the dc-link capacitance was suggested.
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。
To make the servo system have the expected its, it s especially important for selection of DC bus voltage in servo driver.
它们都工作在300千赫兹,直流母线电压400伏特,输出功率120瓦特,输出电压16伏特。
All of them have been operation at 300 kHz, bus voltage of 400 V, output power of 120 W, output voltage of 16 V.
此外,辅助谐振单元中的开关器件和谐振电感都没被设置在直流母线上,降低了辅助谐振单元的损耗。
In addition, switching devices and resonant inductors in the auxiliary resonant unit were not placed on DC-bus to reduce losses of auxiliary resonant unit.
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 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.
交流电网侧通过双闭环控制,实现有功功率和无功功率的解耦控制,同时具有稳定直流母线电压的能力。
The alternate current line side realizes the decoupling control of active power and reactive power through double closed loop and the stability of direct current voltages at the same time.
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。
Furthermore, the method is used to control the DC bus voltage of the VIENNA rectifier, with enhanced control accuracy and system stability.
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。
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.
消除过电压主要通过设置变频器的减速时间、能量消耗、回馈电网制动以及共用直流母线吸收再生能量几种方法消除。
The ways of cancelling over voltage are setting up deceleration time, consumption of energy, feedback electric network brake and Shared direct current bus bar soaking regenerated energy.
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。
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.
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。
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.
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。
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.
将这种过调制算法应用于永磁同步电机矢量控制系统中,提高了逆变器直流母线电压利用率,实现了对永磁同步电机弱磁运行区域的扩展。
The overmodulation algorithm is applied in the PMSM vector control system to increase output voltage of SVPWM inverter, and to extend the PMSM operation range.
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。
Experiment results show that the proposed method can support the inverter DC bus voltage, and reduce the impact of voltage sags on VFD effectively.
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;
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.
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。
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.
实验结果证明,系统电动机电流的谐波失真较小,直流母线电压利用率比常规的正弦波脉宽调制(SPWM)有了较大的提高,功率器件的开关损耗较小。
Test results proved that the motor had lower current harmonic, more efficient use of DC supply voltage than SPWM, less switch loss of power switch.
实验结果证明,系统电动机电流的谐波失真较小,直流母线电压利用率比常规的正弦波脉宽调制(SPWM)有了较大的提高,功率器件的开关损耗较小。
Test results proved that the motor had lower current harmonic, more efficient use of DC supply voltage than SPWM, less switch loss of power switch.
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