The whole control unit is divided into the voltage loop control and the current loop control.
整个系统控制分为电压环控制和电流环滑模控制。
The two parts both adopt double loop PWM control mode which consists of outer voltage loop and inner current loop.
该系统包含升压和逆变两个环节，均采用电压外环、电流内环的双环pwm控制方式。
The adopted control mode of previous common frequency converter is usually of open loop constant voltage ratio, which its control curve is not stable.
早期通用变频器大多为开环恒压比的控制方式，控制曲线不稳定。
In the control of voltage source PWM rectifier, direct current control and dual close loop control structure ind-q synchronous reference frame are widely adopted.
在电压型PWM整流器的控制中，广泛采用在同步旋转坐标系下的直接电流控制方法和双闭环控制结构。
The circuit has the function of thermal shutdown, current limiting and closed control loop of current and voltage.
该电路具有过热保护、短路保护功能和电流、电压闭环控制回路功能。
Due to the particular load characteristic, both the current loop and voltage loop control circuits are devised.
并且针对其独特的负载特性，在设计电流闭环控制电路的同时，还设计了电压环控制电路。
The SHC-APF include a selective detection unit and a closed loop for DC voltage control and current control.
这种有源电力滤波器由选择性谐波检测环节、电压控制和电流控制环节组成。
In order to make more effective control of universal power quality controllers (UPQC), an outer loop model for the voltage loop in a three-phase three-wire UPQC is proposed in the paper.
为了对通用电能质量控制器直流侧电压进行更为有效的控制，提出一种用于三相三线通用电能质量控制器(UPQC)直流侧电压控制的外环模型。
Decoupled control structure consisting of current feedback and voltage feed-forward is adopted in the inner current control loop which can track the reference current quickly.
内环电流控制器采用电流反馈和电压前馈的解耦控制策略，实现电流的快速跟踪控制；
According to the characteristic of the control loop, simple voltage control mode and basic PI compensation are employed to ensure the stability of the converter.
在电路设计上，根据环路传递函数的特征，利用简单的电压模式控制和基本的PI补偿器，保证了宽带环路控制的稳定性。
The voltage ratio is derived and the system closed-loop control is realized with PI regulator.
从理论上推导了电压传输比，采用PI调节器实现了系统的闭环控制。
The instantaneous voltage PID control inverter has advantage on circuit and cost, compared with voltage current dual-loop control inverter.
逆变器瞬时电压PID控制与电压电流双环控制相比，在电路结构、成本等方面更具优越性。
To improve the steady state operation and dynamic response, a dual-loop control strategy which incorporates the inductor current and the instantaneous output voltage has been used.
该方案采用电感电流和输出电压瞬时值双环控制，以提高输出稳定性和动态响应。
A DC voltage outer loop control for power balance and PI correction and an ac current inner loop control for feedback are designed to ensure the current quality and stabilize the DC voltage.
通过直流电压外环的功率平衡控制及比例积分校正，配合内环并网电流反馈控制，使并网逆变器在保持并网电流质量的同时更好地控制直流电压。
The single close-loop control method of HFL inverter based on voltage feedback was designed for better performance.
控制系统采用瞬时电压单闭环控制策略，以提高高频链逆变电源的动静态特性。
Flywheel control system has two closed loops, the inner is voltage stabilization loop, other is current loop or is speed loop in different mode.
飞轮控制系统是个多回路系统，内回路为电压稳定回路，外回路在不同的工作模式下分别为电流回路和转速回路。
This paper presents a new method that PIR-P dual loop control based on rotating coordinates to improve the output voltage symmetry of inverter under the serious unbalanced load condition.
为改善逆变器系统在严重不平衡负载情况下输出电压的对称性，文中提出一种新颖的控制策略——旋转坐标系下的PIR - P双环控制。
With the strategy of the UC3525 core as well as an inner current-loop and an outer voltage-loop control, the output stable voltage and limited current are realized very well.
控制电路以UC3525为核心，构成电流内环、电压外环的双环控制模式，实现系统稳压和限流。
The paper takes advantage of a single close-loop control method based on voltage feedback, and enables the inverter to produce steady sine waves by the digital PID adjuster designed.
本文采用电压反馈的闭环控制方式，设计完成了数字PID调节器，使逆变器输出稳定的正弦波。
The closed - loop control of voltage and current differential has being used to depress the current oscillation, and this provides some reference for designing and manufacturing VVVF products.
采用电压和电流微分闭环控制，能有效地抑制电流振荡，为VVVF设计和制造提供了参考。
Based on the discussion on the formation of the main loop and control strategy, the construction scheme of the control system for high-voltage rectifying circuit is presented.
通过对主回路的构成和控制策略的讨论，提出了高压整流电路的控制系统的构成方案。
A closed loop control method for the matrix converter based on double line to line voltage synthesis algorithm is proposed in this paper.
该文提出了一种基于双电压合成矩阵变换器的闭环控制方法。
Aim at the problem, a novel inverter control scheme of DSP-based voltage and current dual loop control with repetitive controller embedded is presented in this paper.
针对此问题，本文提出了一种新的基于DS P带重复控制器电压电流双环反馈控制方案。
Secondly, the DC voltage loop and inner current closed-loop control method, both to ensure zero static error of the inverter output, but also to ensure that the inverter output waveform.
其次，本文采用直流电压外环、电流内环的双闭环控制方法，既保证了逆变器输出的静态误差为零，又保证了逆变器良好的输出波形。
Closed loop structure is adopted in this control system, the current and voltage of welding is used as feedback quantity.
该控制系统采用闭环结构，焊接电流、电弧电压为反馈量。
The voltage converter works in PWM mode. Frequency-control speed regulation, DC voltage supply monitoring of the converter, synchronous motor power-angle close-loop control are combined.
控制策略为逆变器PWM调压、变频调速结合逆变器直流侧电压闭环、同步电动机功角闭环控制。
We can use SPWM to control power tube on or off, can use the double-loop control with the inductance current inner loop and capacitor voltage outer loop is introduced.
可采用SPWM控制功率管的关闭与导通，采用外环电压环，内环电流环的双环控制。
The chip of TL494 functions very strong, and its operation frequency is high. The double closed loop control of output voltage and current is realized by integrating some simple hardware circuit.
TL 494芯片功能强，工作频率高，通过外扩简单的硬件电路即可实现输出电压电流的双闭环控制。
This paper presents a digital multiple-loop control technology of inverters. The scheme incorporates a current loop with an instantaneous voltage loop, while a repetitive control outer loop is added.
本文提出了一种逆变器数字多环控制技术，该方案在电流环和瞬时电压环之外附加了一个重复控制环。
The outer loop of the cascade controller 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；
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