状态反馈所需的变量为电容电压和电容电流。
The state variables to be fed back are output voltage and capacitor current.
外环则采用PI控制算法，以电容电压为被控量。
The outer one adopts conventional PI control algorithm and takes the capacitor voltage as the controlled variable.
控制器的外环采用PI控制算法，以电容电压为被控量；
The outer loop of the cascade controller adopts conventional PI control algorithm and takes the capacitor voltage as the controlled variable;
主要讨论了单位功率因数实现和电容电压平衡问题及其关系。
The relationship between the unity power factor and the voltage balance of the capacitor was discussed.
只要电容电压比系统电压高，则电能开关就能控制能流方向。
The power switches is able to control the direction of power flow as long as the capacitor voltage is kept higher than the system voltage.
在对电容电压进行动态维持的同时，实现高效的PWM调制。
While the PWM is implemented with high efficiency, the capacitor voltage is dynamically maintained.
不对称度的增加将进一步增大电容电压的脉动和负序电流的大小。
Larger system voltage unbalance degree causes larger capacitor voltage pulsation and negative sequence current.
在满足有关条件下，得到了计算电容电压稳态波形极值的两个公式。
Two formula calculating the extremum values of the steady-state waveform of the capacitance voltage are obtained in certain conditions.
本文应用状态方程推导出tsc投入过程中电流、电容电压的变化规律。
This paper gives the changing law of the current and capacitor voltage in the process of the connection of TSC by means of the state equations.
控制悬浮电容电压的平衡是保证悬浮电容多电平逆变器运行安全的关键。
Controlling voltage balancing of flying-capacitor multilevel inverter is very important to its safe operation.
通过两输出电容电压的偏差改变电流参考给定来实现整流器输出中点平衡。
The problem of neutral-point balance is resolved by changing the amplitude of current reference according to the voltage error of two capacitors.
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 stability of the dc bus capacitor voltage is directly connected with the compensatory capability of an voltage source active power filter.
如为提高系统的可控性，设想了一种点火装置储能电容电压的光信号反馈方法。
For example, an assumption of a optical signal feedback method is used for energy storage in the capacity of the ignition device for more controllability.
基于PWM整流技术，并通过控制逆变器开关的导通顺序调节逆变器直流侧的电容电压。
Based on the technique of PWM rectifier, the DC voltage of the inverter was adjusted by controlling the switch order of the switching elements.
应用PI控制使逆变器直流侧电容电压保持稳定，保证DSTATCOM良好的电流跟踪性能。
The voltage of the capacitance which is on the DC side of the inverter is stabilized by using PI control strategy, which ensures the DSTATCOM 's good current tracking performance.
直流侧电容电压平衡问题是三电平逆变器的研究重点之一，本文对其提出了一种改进的控制方法。
One of the research emphases of three-level inverter is the DC capacitor voltage balancing problem. In this paper this problem is studied thoroughly and a new method to solve it is proposed.
电容电压与电感电流不能跃变的换路定率，是在电容电流与电感电压为有限值情况下推导出来的。
The law that the voltage on a capacitance and the current in a inductance can't leap is deduced in the case that the voltage and the current are finite.
结果表明：变压器层间电压分布随时间变化，且与电路外部参数如失谐、原边电容电压等存在关系。
The results show that the voltage distribution varies with time, and it is influenced by circuit extrinsic parameters such as circuit mismatch, primary capacitor voltage, etc.
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。
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.
借助该模型可分析影响暂态过程的相关因素，进而从本质上揭示了电容电压同步下TCSC的暂态机理。
Based on the derived model, the factors affecting TCSC transient characteristics are discussed. Also the transient mechanism of TCSC is revealed under capacitor voltage synchronization mode.
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。
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.
采用编程仿真的方式，对单级电路和多级电路分析后，提出了晶闸管开关最佳接入时刻为被短接电容电压为零时；
By programming simulation, the single-grade and multi-grade circuits are analyzed, and it is the best moment for thyristor to switch on when the voltage of capacitor to be shorted is zero.
该文基于TCSC的开关函数模型并借助MATLAB仿真工具，提出了研究电容电压过零点特性的数字仿真方法。
Based on switch function model of TCSC and MATLAB, the digital simulation method in researching zero-crossing point characteristic of the capacitor voltage is put forward.
建立了电容电压模型，提出了一种新型运行策略，对系统中的能量进行吸收和释放，实现对电容电压进行充放电控制。
The capacitor voltage model is established and an operating strategy is proposed to control the capacitor voltage by absorbing and releasing the energy in converter.
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。
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.
该方法以电网电压为同步信号，在电网电压信号的过零点采样直流侧电容电压，并通过周期离散控制可以获得负荷电流有功分量。
The new control way can realize linear control for DC-bus voltage and get the fundamental component of the load current synchronously with a little of calculation.
功率变换器主电路采用电压电流双闭环瞬时值反馈控制方式，电容电压和电流瞬时值控制环提高了系统的稳定性、硬特性、稳态特性及动态特性。
The voltage and current real-time feedback control method is adopted, which improves the stability, the stiffness, the static characteristics, and the dynamic characteristics of the system.
功率变换器主电路采用电压电流双闭环瞬时值反馈控制方式，电容电压和电流瞬时值控制环提高了系统的稳定性、硬特性、稳态特性及动态特性。
The voltage and current real-time feedback control method is adopted, which improves the stability, the stiffness, the static characteristics, and the dynamic characteristics of the system.
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