The general inverter designed in this dissertation is a 220v voltage type AC-DC-AC modal.
本文设计的通用变频器为单相220V交-直-交电压源型变频器。
Main circuit adopts the AC-DC-AC structure and uses IPM(Intelligent Power Module) as main switch.
主电路采用交—直—交电压源型变频器，功率器件采用智能功率模块IPM。
A separate-controlled AC-DC-AC power load simulator is designed adopting the principle of voltage-type PWM convertor.
本文运用PW M电压型变流器的基本原理，设计了一种分离控制式交-直-交功率负荷模拟器。
In this paper, the AC-DC-AC structure commonly used in wind turbine is introduced, and introduce the concept of power balance control.
本文结合风力发电机组中常用的交直交结构，将功率平衡概念引入并网变流器控制。
A direct harmonic analysis approach for AC-DC-AC conversion system was presented to simplify the complicated harmonic calculation process.
为了简化ac - DC - AC变换器复杂的谐波计算过程，采用直接谐波计算对变换器进行了谐波分析。
The complexity of control strategy is equivalent with that of ac-dc-ac converter, and the voltage transfer ratio is theoretically up to 0.955.
其控制算法与交—直—交变换器控制算法的复杂度相当，电压传输比在理论上可达到0.955。
The AC servo system of FANUC 11 series is a AC-DC-AC conversion frequency speed adjusting system, which use PWM as the speed-adjusting control method.
FANUC一11型交一直一交频调速系统，调速的控制方法为脉冲宽度调制(pwm)法。
Moreover, compared with the traditional AC-DC-AC converter, it removes the huge capacitance, then the volume is reduced and the efficiency is enhanced.
相比于传统的交-直-交变换器去掉了体积庞大的电容，使得体积减小，效率提高。
The paper establish main circuit which use AC-DC-AC inverter. To TMS320LF2407A as the core of control circuit, low-frequency inverter technology has been studied.
本文建立以“交-直-交”逆变桥为主电路，控制电路以TMS320LF2407A为核心，对低频逆变技术进行研究。
This paper introduces a microprocessor controlled PWM real time controller used in AC-DC-AC electric locomotive. A real-time forming method of multi-mode PWM waveform is described.
介绍了一种用十六位单片机实现的用于控制交-直-交电力机车道变器的PWM实时控制器，论述了PWM波形的实时生成方法。
In AC-DC-AC VVVF, We can accurately measure voltage, current, power and frequency with The HIOKI3164 and TOPVIEW31 analysis software, even if the wave is irregularities and distortion.
利用HIOKI3164和TOPVIEW31分析软件，可对交-直-交变频器中电压、电流、功率、频率进行准确测量，不论它是不规则波形还是畸变波形。
Electric power is output to the oil tube, which is connected with the bushing by the oil bushing connecter on the bottom of the oil tube, via a 3-phase transformer after AC-DC-AC inverse circuit.
电能由三相配电变压器经AC DC AC逆变电路输出传送到油管，经油管下部的油套管接触器连接到套管，形成一个完整的回路。
For AC voltage measurement, an RMS converter circuit or a precision rectifier circuit convert the AC signal into a DC voltage.
对于交流电压测量﹐利用有效值转换电路或精密整流器电路将交流信号转换成直流电压。
By comparing the heating effect of an unknown AC signal to that from a known DC reference, metrologists can determine the RMS AC quantity (voltage or current) in terms of the DC quantity.
为了对比一个已知直流参考的未知交流信号热效应，计量人员可以确定在一段时间内直流的交流有效值(电压或电流)。
By digital simulation, the Ac carried wave system and its equivalent Dc system are checked and the feasibility of Dc method equivalent to the Ac carrier wave system is verified.
通过数字仿真，比较了交流载波系统和其等效直流系统，验证了交流载波系统等效直流方法的可行性。
The ac adapter (as it's more accurately known) simply converts the ac current from a wall outlet into low-voltage, low-amperage DC current that it provides via a USB port.
AC适配器(这是交流电源更准确的说法)只是把来自墙上插口的交流电转化为低伏特、低安培的直流电源，并通过USB接口充入手机。
The problem of oversimplification and improper selection of DC model, which exists in the DC modeling when AC and DC systems interact in AC/DC hybrid power system, is discussed.
讨论了目前研究交、直流混合电网交直流系统相互作用时在直流建模上存在的模型过度简化及模型选用不恰当的问题；
Its software is designed to calculate the running parameters of the AC drive system, including transformer, quadrant rectifier, DC circuit, inverter, AC motor and train load.
系统采用软件方式实时计算交流传动系统的运行参数，包括变压器、四象限整流器、直流中间回路、逆变器、电机及负载。
The DC signals after demodulation still contain AC component of one or several frequencies respectively for multiplication or diode methods, but no AC component for multiplication-Division one.
对静态位移的测量，二极管检波或乘法检波后分别得到的是一含多频或单频交流成分的脉动直流信号，而乘除法检波后信号不含交流成分。
The single AC power input voltage frequency, the internal AC to DC after; DC converter rectifier exchange conversion, self-produced - very stable, pure sine wave.
该电源输入单一交流电压和频率，内部经过交流对直流；直流对交流的变流整流转换后，自行产生-非常稳定纯净的正弦波。
The current controller on the HVDC line can do AC/DC parallel tie-line local control or improve the stability of AC/DC hybrid power systems.
直流功率调制器可以对交直流联络线进行局部控制或改善交直流混合系统的运行特性。
The paper presents a method to determine equivalent DC impedance and equivalent AC impedance of HVDC converter viewed respectively from DC side and AC side based on switching function theory.
文中提出了基于开关函数理论的HVDC换流器直流等值阻抗和交流等值阻抗计算方法。
The improved AC/DC comparator consists of a self balancing DC comparator and an electronically compensated AC transformer.
这种新型电流比较仪实际上包含了自平衡直流比较仪和电子补偿式交流电流互感器的所有功能。
AC network with DC network are also combined in a AC-DC iterative power flow calculation program through the detailed model of 24-pulse bridge rectifier.
通过对24脉波换流站进行精确建模，将换流站两侧的直流网络和交流网络联系起来，运用交直流潮流迭代计算的方法计算地铁供电网络的潮流分布。
Thus, the object of the power system analysis software has been changed from AC power system into AC-DC hybrid power system, which requires the software for the AC power system to be improved.
这样，电力系统分析软件的分析对象从纯交流系统变为交直流混联电力系统，这就要求对纯交流系统的分析软件进行改进。
In the system, Intel 80c196mc is used as control center and IPM is used as an intelligent power device in the main circuit of AC DC AC voltage type inverter.
该系统以80c 196MC为控制核心，采用IPM智能功率模块为功率元件，组成了交直交电压型逆变器主回路。
A generator system that includes a three-phase ac machine and an active rectifier bridge employing low on-resistance MOSFET switches for converting the ac current from the machine to a DC current.
高效发电机。一种发电机系统包括三相ac电机和应用低导通电阻MOSFET开关的有源整流器电桥，用于将来自电机的AC电流转换为DC电流。
The leakage current through DC-AC etched aluminum foil when anode finishing is least, while the tensile strength and bending property of hard AC-etched aluminum foil are best.
直-交流腐蚀箔的漏电流最小，硬质交流腐蚀箔的抗拉强度及折弯次数最大。
With the continuous improvement of the AC motor control technology, many items of AC motor performance can be matched with DC motor.
近年来交流电机控制技术不断完善，交流电机的多项控制指标均能与直流电机控制性能相媲美。
With the continuous improvement of the AC motor control technology, many items of AC motor performance can be matched with DC motor.
近年来交流电机控制技术不断完善，交流电机的多项控制指标均能与直流电机控制性能相媲美。
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