To the design of hardware, the filter inductance and capacitance of DC-link are the key parts;
其中，滤波电感和中间直流支撑电容的参数设计是硬件电路设计中的重点；
Major innovation is the power conversion with chopper and controlled converter DC-link in direct current networks.
新加入的是直流路网中用斩波器和中间电路电压可调的功率变换装置。
The simulation demonstrates that the load current feed-forward term can be removed to cut the cost because of the fast DC-link voltage regulation.
从模拟结果可知，由于电压外回路的快速直流链稳压控制，使得负载电流回授电路可予以去除来降低成本。
Secondly, based on the dynamic analysis of the PWM rectifier, a precise analytical expression for the computation of the dc-link capacitance was suggested.
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。
Negative impedances lead to DC-link voltage and current oscillation in metro traction converters and so to reduction of stability of traction drive systems.
负阻抗会引起地铁车辆牵引变流器直流侧电压、电流振荡，降低牵引传动系统稳定性。
On the base of the theory of lowly pulsant output resonant DC-link inverter, the loss in the resonant phase of the resonant DC-link is analyzed and almost calculated.
在分析一种低脉动输出电压的谐振d C环逆变器原理的基础上，对谐振环的谐振阶段的损耗进行了分析与近似计算。
The output waves of traditional resonant DC-Link inverter have too much low frequency harmonic waves which affect the output performance, because it can only use DPM control.
由于传统谐振直流环节逆变器只能采用离散脉冲调制方式，输出波形中含有丰富的低次谐波，严重影响输出性能。
The mechanism of harmonic increments caused by power device forward voltage drop and DC-link capacity voltage variety are analyzed in detail, and the compensation algorithm are proposed.
对由励磁电源管压降所产生的谐波和变频器直流电容电压波动的问题进行了详细的分析并提出了改进方法。
Through the analysis on the turn-on and turn-off transience of NPC three-level MVDs, the corresponding mathematical models are developed, based on which the DC-Link choke value is deduced.
通过分析三电平结构的开关暂态过程，建立了变频器暂态开关数学模型，并设计了直流环节部分的限流电抗。
In this paper the small signal model following the DC-link of the traction converter system is established and the mechanism of DC-link voltage and current oscillation is analyzed in detail.
本文建立地铁牵引变流器关注直流侧的系统小信号模型，详细分析直流侧振荡的产生机理。
The efficiency of a novel aircraft static inverter based on cascaded inverter is mainly rested with its DC link.
基于级联技术的新型航空静止变流器的效率主要取决于其直流变换环节。
The paper detailed the relationship of input resonant voltage, modulation voltage and output sinusoidal voltage of single phase resonant DC link inverter(RDCLI).
详细研究了谐振直流环节单相逆变器的输入谐振电压与逆变器输出调制电压、输出正弦电压的关系；
Resonant dc link inverter is a zero voltage switching inverter.
谐振直流环节逆变器是一种零电压开关逆变器。
In accordance with the characteristics that resonant DC link inverter should adopt discrete pulse modulation, we propose a novel method of soft SPWM waveform synthesis.
针对DC谐振直流环节逆变器须采用离散脉冲调制的特点，提出了一种新型软化SPWM波形合成方法。文中给出了软化SPWM波形合成基本原理、合成方法及实现电路。
The PSE typically includes a controller that controls the DC power provided to the PD at the second node of the communications link.
PSE通常包括控制 器，其控制提供给通信链路的第二节点上的PD的直流电。
The present invention has no intermediate DC link and thus simplified circuit, low cost, less harmonic component in the voltage anc current waveform and high power factor.
本发明所设计的波形变换方法及其装置，省去了中间直流环节，使线路得以大大简化，显著降低了成本，同时使电压、电流谐波得以减小，并可获得较高的功率因数。
Pressure and insulation of solar panels will limit the number of photovoltaic modules in series, so DC/DC boosted link was used generally in photovoltaic power generation systems.
由于光伏电池组件串联的数量受到太阳能电池板耐压和绝缘要求的限制，因此在光伏发电系统中一般采用DC/DC升压环节。
A novel topology of high frequency link DC ac converter with bi directional flyback mode is proposed, and its operational principle and control strategy are introduced briefly.
提出了一种新颖的双向电流源高频链DC A C功率变换器的拓扑结构，并简要地阐述了其工作原理和控制方案。
A novel two-amplitude control strategy for active-clamped resonant DC link inverter is proposed.
针对有源箝位谐振直流环节逆变器提出了一种新的双幅控制策略。
On this basis the telecommunication interference caused by this DC link is calculated and evaluated.
在此基础上对该线路的电信干扰进行了计算和评估。
Following up the change of some parameters in ac systems, it can regulate the active power transmitted by DC link and damp power oscillation in systems.
在交流系统受到扰动后它通过跟踪交流系统某些参数的变化来调节直流输送的有功功率，从而达到阻尼整个系统功率振荡的目的。
The three phase converter soft switch control can be realized by avail of resonant DC link.
谐振直流环可以实现三相变流器的软开关控制。
In order to exert this advantage more effectively, it is necessary to expand the controllability of DC link by appending control methods.
为了更有效地发挥这个优势，常常需要附加控制来拓展直流联络线的控制能力。
The detecting techniques of harmful currents, the modulation methods of novel UPFC and the balancing control of capacitors voltage on DC link are studied thoroughly.
对有害电流检测方法、新型UPFC的变换器的调制方法、新型UPFC直流侧电容电压的平衡控制方法等进行了深入研究。
Using this resonance controller to take a closed loop control to selected harmonic voltage makes DVR with a function of harmonic voltage compensation, which has little influence on DC link voltage.
应用这种静止坐标下的谐振控制器对指定次数的谐波电压进行闭环控制，使DVR具备补偿谐波电压的功能，而对基本DVR的电压凹陷补偿性能的影响很小。
In the source commutation technique, a commutating Thyristor is turned off byforcing the DC link current to zero.
在来源换向技术，一台换向的可控硅整流器被关闭当换向发生时，潮流是近似地恒定的除了山谷。
A novel zero-voltage switching resonant DC link inverter was proposed to improve conversion efficiency of the inverter.
为提高逆变器的转换效率，提出一种新型零电压开关谐振直流环节逆变器。
A novel zero-voltage switching resonant DC link inverter was proposed to improve conversion efficiency of the inverter.
为提高逆变器的转换效率，提出一种新型零电压开关谐振直流环节逆变器。
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