伺服电动机更容易控制，但是他们的功率都比较小，需要明确的电压，andarelessintuitive。
Servos are much easier to control, but they generally are less energy efficient, have explicit voltage requirements, and are less intuitive.
电压控制和无功功率的控制是分不开的。
它具有输入阻抗高、电压控制和用低压控制大功率输出的特点。
It is a voltage-controlled device with high input impedance, which makes it possible to control higher output power with a lower input voltage.
提出了APU的电压和功率控制策略，并进行了试验验证。
Control strategies of APU voltage and power are proposed and proved by experiment.
为提高光伏电池的光电转换效率，设计一种基于开路电压法的光伏电池最大功率点跟踪(MPPT)控制芯片。
An analog maximum power point tracking (MPPT) controller integrated circuit (IC) based on open-circuit voltage method was proposed to enhance the photovoltaic conversion efficiency of solar cell.
本论文结合灵敏度方程式及九区图法理论，运用于变电所电压及虚功率控制；
The thesis focused on testifying the impact of the sensitivity equation and the Nine-Area Theory on voltage control and reactive power dispatch.
如此，在容限电压法当中，直流电压和和有功功率分别被整流器和反相器所控制。
Thus, in the voltage margin method, the dc voltage and the active power are separately controlled by the rectifier and the inverter, respectively.
既要保持电压而在限制范围内的频率，需要良好的功率控制和负载调节。
To maintain both the voltage and the frequency within limits requires fine power control and load regulation.
在飞轮能量释放过程中，利用电压反馈控制，负载能获得恒定的电功率。
Using voltage feedback control, the constant power output is achieved during the flywheel discharging period.
提出了采用滑模变结构电流内环与由PI调节器和数字低通滤波器组成的电压外环相结合的控制系统，以实现高性能高速度的功率因数校正。
This PFC was realized by employing sliding-mode variable-structure inner current loop control and outer voltage loop PI control with digital low-pass filter to achieve high performance.
通过反馈电压控制可控硅的导通角来实现对工业大功率整流电路的恒流控制。
It's possible to control the industry powerful constant circuit of commutating circuit through controlling the guide circuit Angle of controllable silicon by feedback pressure.
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 DC bus voltage and the power factor of the PWM rectifier are regulated by three nonlinear PI controllers with high performance.
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。
Full speed within sections of constant flux and constant voltage constant power control, we can get the torque - speed characteristics under the control.
所以，现代电力系统中的无功功率与电压控制是一个非常重要的问题，需要很好地解决。
So reactive power and voltage control in modern power system is a very important problem that need to solve well.
容压法电力交换控制已经应用于终端控制器的直流电压控制部分和有功功率控制部分。
The voltage margin method for interchange power control was applied to the dc voltage control block (DC-AVR) and the active power control block (APR) in the terminal controller.
依据新的输入电压空间划分及合成空间矢量，确定了新的功率控制开关表。
A new power control switching table is set up according to new dividing of input voltage space and resultant voltage space vectors.
在功率和电压控制中采用了级联控制方法。
Cascade control scheme to be applied to develop power and voltage control.
通过对高功率因数变流器网侧指令和实际电流的预测，提出了一种采用变流器电压矢量优化控制策略的电流跟踪新方案。
This paper discusses a new control tactics of the converter which adopt voltage vector optimum control tactics by predicting the current of high power factor converter.
基于电压源逆变器（V S I）的静止无功发生器（SVG）直接应用PWM控制技术，具有结构紧凑、易于控制、谐波含量小以及功率密度大等优点。
VSI-based SVG using PWM technology has some advantages such as compact structure, simple control, little harmonics and high power density.
介绍了一种基于零电压软开关技术和双闭环控制模式的大功率等离子喷涂高频开关电源。
A novel plasma spray power supply based on ZVS soft-switching technology and double close loop control mode is presented in this paper.
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.
然后对DVR进行电压补偿过程中涉及到的对功率管、补偿电压输出以及整个DVR系统等的控制策略进行了探讨和分析。
Provided discussion and analysis for the control of IGBT, output of compensatory voltage and the control strategy of the whole DVR system.
但如果设计反激有源箝位电路工作在电流连续模式，控制占空比，使输入电流跟随输入电压，可以提高输入功率因数。
However if the active clamp flyback converter is designed to operate in CCM, and the duty cycle is controlled to make the input current track input voltage, the input power factor can be improved.
通过控制电压偏置方向，利用电渗流效应使毛细管多孔导电膜的刻蚀成功率得到显著提高。
The success rate of porous conductive membrane preparation on fused silica capillary was greatly improved by control of voltage bias and electroosmosis effect.
应用连续变量线性反馈对一类由负荷无功功率变化引起的电压崩溃进行控制，仅用单个变量即可实现。
This paper applies a method of linear continuous variable feedback to the control of a kind of voltage collapses induced by reactive power changes, which only USES a single variable to feed back.
在喷泉控制系统中，采用单片机控制原理，以可控硅作为功率开关元件，由于可控硅承受过电压、过电流的能力较差，因而不能长时间运行。
In fountain control system, the controllable silicon is used as power switch unit with the control principle of monolithic processor, which cannot run for a long time.
在基于电压源换流器的高压直流输电(VSC -HVDC)交直流混合风电场并网系统中，控制VSC - HVDC送端站注入到PC C点的无功功率可以抑制电压波动。
In hybrid wind farm integration system based on HVDC of voltage source converter (VSC-HVDC), the voltage fluctuation can be alleviated by compensating reactive power to PCC from VSC-HVDC sending end.
该系统可以测量电机的电压、电流、功率因数、功率、温度、转矩和转速，能够对电机参数进行快速准确地测定分析，用于电机的控制和智能保护。
The system can be adopted to measure electrical machine parameter quickly and accurately as well as analyse measuring data, so it can be used in electrical machine control and intelligent protection.
实验与分析表明，高压直流放大器采用功率场效应管和电压闭环控制后，可拓展放大器通频带，提高放大器输出能力和长时间稳定性。
The experimental and analytical results demonstrate that wide bandwidth, high voltage output and long-time stability can be achieved with power MOSFETs and a closed-loop scheme.
实验与分析表明，高压直流放大器采用功率场效应管和电压闭环控制后，可拓展放大器通频带，提高放大器输出能力和长时间稳定性。
The experimental and analytical results demonstrate that wide bandwidth, high voltage output and long-time stability can be achieved with power MOSFETs and a closed-loop scheme.
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