ABSTRACT Based on the analysis of principle of UPFC in detail and by use of horizontal and vertical components of the series output voltage and shunt output current as controlling inputs a UPFC controller is put forward in this paper. The influence of UPFC and its controlling parameters on power system stability, capability of voltage regulation and power flow control are overall simulated on a one-machine to infinitive-bus system.
通过详细的理论分析，考虑统一潮流控制器的电压调节和潮流控制作用，以UPFC串联侧输出电压的横向分量和纵向分量以及并联侧输出电流的横向分量为控制输入，设计了UPFC的控制器；以单机无穷大系统为例，较全面地仿真了UPFC及其控制参数对系统暂态稳定性的影响以及UPFC的电压调节和潮流控制能力。
The polarization controller using fiber squeezers is improved under prevenient groundworks. Restoration units are cancelled, so that the squeezers are decreased from five to three. Half-wave voltage reaches 15V.
论文在前期研究工作的基础上对光纤挤压式偏振控制器进行了改进，取消了复位单元，使挤压器从五个减为三个，半波电压达到 15V。
The thesis discusses wind turbine system`s PID control strategies design based on genetic algorithm, and applied the superconducting magnetic energy storage to the MW scale wind power pitch regulation system. The MATLAB simulation results of the controller show the validity and. it can improve the stability of the output voltage and frequency.
本文应用基于遗传算法的自适应PID 控制策略，并将 SMES单元应用到兆瓦级并网型风力发电系统的变桨控制，借助于MATLAB 软件包设计控制器，仿真结果表明了算法的有效性，可显著改善风电系统输出的电压、频率的稳定性。
Simulation and experiment show that the DSP controller can meet the requirements of the variable-voltage and variable-frequency system.
实验研究表明设计的DSP控制器完全满足变压变频系统的要求。
Since this system uses a combination of the most advanced controller series battery circuit homogeneous grouping of small potential difference of solar cells and batteries are not high-voltage differential impact, there should be no hot spots and solar batteries inverse power series in such a problem might arise.
由于本系统使用国内最先进的组合控制器，使串联电路中的蓄电池充电均匀，分组电位差小，对太阳能电池和蓄电池都没有高电压差影响，因此不会出现太阳能电池热斑和蓄电池逆反等这些串联供电中会出现的问题。
Simulating based on a Double- Generator-Infinite Bus Power System shows that the the voltage is well regulated by the improved exiting controller.
以双机—无穷大系统进相运行的仿真验证了改进的励磁策略的优越性。
Solar controller has the function of LED, LCD display that can display the current battery voltage, solar array output current, load and discharge current to the current rechargeable batteries.
太阳能控制器具有 LED、LCD 显示功能，可显示当前蓄电池组的电压、太阳能电池阵列输出电流、负载放电电流及向蓄电池充电的电流。
The major categories of soft starter has dominated the high-low-voltage distribution cabinet series product; RC has to over-voltage protection and neutral grounding resistors, transformer-based relay protection series products; have to multi-way, single-channel microcomputer-based Flash Alarm and supporting industrial control products; have to adjust intelligent digital display device, data logging devices, controller-based digital instrumentation products; have to power-based series of electrical instrumentation table Products; have intelligent flow meter, differential pressure, the transmitter of the sensor-based instrumentation product line.
主要分类有以软起动器为主的高低压配电柜系列产品；有以阻容过电压保护器和中性点接地电阻器、互感器为主的继电保护性系列产品；有以多路、单路微机闪光报警器为主及其配套的工业控制系列产品；有以智能数字显示调节仪、巡检仪、控制仪为主的系列数字仪表产品；有以电力为主的系列电工仪表表产品；有以智能流量计、压差计、变送器为主的传感仪表系列产品。
The paper introduces a new current type PWM controller with both current control loop and voltage control loop.
电压型PWM是指控制器按反馈电压来调节输出脉宽，电流型PWM是指控制器按反馈电流来调节输出脉宽。
CIP cleaning system collocates cleaner automatically and accomplishes cleaner transportation and circumfluence cleaning, releasing and cycling in circulation through gasdrive control valve, voltage plus pump, circumfluence pump and accomplishes automatic online cleaning through system composed of electric-induced rate detector, temperature controller, acid and alkali measure pump and PLC touch screen.
根据设置程序由CIP 清洗系统自动配制清洗液，经气动控制阀与增压泵、回流泵来完成清洗液的输送及回流循环清洗、排放、回收整个清洗过程。通过电导率、温度控制仪、酸碱计量泵及 PLC 触摸屏组成的控制系统达到了自动在线清洗。
To realize the frequency converter's failures recurrence test and parameter adjustment, the paper models the vector frequency converter based on the closed loop speed control according to constitute circuits of the converter and mathematical model of the controller with Matlab/Simulink software. It simulates the failure of the DC bus under-voltage due to the rectifier trigger circuit open. The simulating result shows that the middle voltage pressure drop caused by no triggering of the rectifying element is greater than normal condition one. It explains why the failures happen.
为了实现变频器各种故障复现试验和参数调整的需要，根据变频器的组成电路和控制器的数学模型，应用Matlab/Simulink软件，建立了基于转速闭环控制的矢量变频器，并利用模型就一起由于整流器触发电路开路引起的直流母线电压欠压故障进行了仿真，仿真结果表明，对于矢量变频器、整流元件没有触发造成的缺相使中间直流母线电压下降较正常情况明显，从而解释了故障发生的机理，同时验证了模型的正确性。
Voltage sampling circuit, switching network of the equaling power supply and the FPGA-based controller of the monitoring system are given.
通过电阻分压采样电路和继电器矩阵式均衡电源投切网络的设计，以FPGA为核心构成了均衡充电系统监控单元。
For a deflective routing network we propose the design of a central controller for dynamic frequency and voltage scaling.
对于有缺陷的路由网，我们提出了对用于动态频率和电压变标的中央控制器的设计。
According to application of new type generator and the new requirement of power supply to new type of carriage train, The KP-3 type carriage generator and control system for this train based on 80c196 single-chip computer was designed, the main controller of which depends on IGBT. The system uses the output voltage and current from generator and the charging current as feedback variable.
针对铁路新型客车发电机的应用和供电系统的新要求，研制开发出以80C196单片机为控制核心，以IGBT为主控元件，以发电机输出电压、输出电流和充电电流为反馈变量的KP-3型铁路客车发电机控制系统。
Adopted specially-made temperature controller which could be worked in very low voltage.
采用压力式温控器能在特低的电压下工作，不受电压的波动而影响电气性能。
The fuzzy controller can meet the need of intelligent operation of high voltage circuit breaker in speed and reliability.
模拟控制表明，该模糊控制器具有优良的控制性能，其精度和速度完全能满足断路器智能操作的要求。
On this foundation, we have carried out the hardware algorithm/control unit such as chip systematic function partition, DDS standard sine wave generator, voltage current double-loop controller algorithm unit, PI hardware algorithm unit, SPWM producing unit, triangle wave occurs unit and the control unit of dead band, etc. Their hardware algorithm have been studied.
在此基础上，进行了芯片系统功能划分，针对：DDS 标准正弦波发生器，电压电流双环控制算法单元，硬件PI 算法单元，SPWM 产生器，三角波发生器，死区控制器，数据流/控制流模块等逆变器控制硬件算法/控制单元，研究了它们的硬件算法，完成了模块化设计。
On the basis of it, two controllers are designed respectively, which are fuzzy logic controller and artificial neural network voltage space vector controller by use of BP network.
本文阐述了智能控制技术，包括模糊控制和神经网络控制技术，在此基础上，一是设计了模糊控制器，二是利用BP网络设计人工神经网络控制器。
The intelligence soft starters software part mainly is calculates the voltage error and the error rate of change according to the sampling signal and the keyboard setting value, by Nine-Point controller algorithm control triggering angle size, thus achieves the control motor voltage slow rise the goal, thus enhanced the soft starters reliability, the stability and the accuracy.
智能型软起动器的软件部分主要是根据电压采样信号和键盘的设定值计算出电压偏差和偏差变化率，由九点控制算法计算出触发角的大小，从而达到控制电机电压缓慢上升的目的，从而提高了电机起动的可靠性、稳定性和准确性。
This circuital purpose depends on the voltage restoring trigger pulse and the electric motor ring compensates a phase difference, time controller in PLC interposes to whose go along.
这个电路的目的在于修复触发脉冲和电机环电压补偿相差，PLC中的时间控制器对其进行设置。