介绍一种双闭环控制变频调速系统。
系统采用电流和速度的双闭环控制。
The speed and electric current double closed-circle is adopted in the system.
分析了双闭环控制回路。
Then the double closed control circuits of this system are analyzed.
论述了转速双闭环控制的基本原理及方法。
Basic principles and the method of double-closed-loop PID control of rotation rate are discussed.
该系统用双闭环控制。
整个系统采用双闭环控制，具有较好的谐波补偿性能。
The whole system adopts double closed loop control and has good harmonic compensation performance.
软件部分主要研究了模糊自整定PI双闭环控制算法。
The software system includes the algorithm of double close loop based on fuzzy self tuning PI.
采用增量式编码器，通过速度及位置信号进行双闭环控制。
Double closed loop control is implemented with increment encoder through signal of speed and position.
并且对模糊自整定PI双闭环控制设计方案进行了实验研究。
The paper makes experimental research for its designing scheme of double close-loop control based on fuzzy self-tuning PI.
该文采用了DSP作为控制芯片，实现了系统的双闭环控制。
This paper uses DSP as control chip, and has achieved double control for system.
系统采用双闭环控制，内环采用电流负反馈对电机转矩进行调节；
Two closed loops are constructed in the control system; the inner loop is currentfeedback that is to adjust the torque of the motor.
提出了一种基于三相电压型PWM逆变器的电压电流双闭环控制方法。
This paper puts forward a voltage and current double closed-loop controlling method based on three-phase voltage source PWM inverter.
拥有双闭环控制功能，最大程度高效快速加热，优化金属工件的加热过程。
Having double close-loop control function may heat rapidly with high efficiency furthest and optimize the heating process of metal workpiece.
在本系统中，我们应用了双闭环控制理论，以保证位置控制系统的稳定性。
In this system we apply the double closed loop theory to guarantee the accuracy of position control.
论文采用了平均电流模式下的双闭环控制，提高了变换器的动态性能和稳态性能。
The paper takes advantage of a double closed-loop control method based on average-current mode and improves the static and dynamic performance of the converter.
为了达到更优的制动效果，通过分析提出了气压反馈、减速度反馈的双闭环控制策略。
In order to reach more excellent result, we gave a control strategy of atmospheric pressure feedback and acceleration feedback.
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.
送丝速度通过两个PI调节器进行双闭环控制，分别进行电枢电压反馈和电弧电压反馈。
Two PI adjustors were applied for wire feeding velocity control, one performed motor armature voltage feedback, the other one executed arc voltage feedback to determine the given velocity.
送丝速度通过两个PI调节器进行双闭环控制，分别进行电枢电压反馈和电弧电压反馈。
Two PI adjusters were applied for wire feeding velocity control, one performed motor armature voltage feedback, the other one executed arc voltage feedback to determine the given velocity.
论述了基于C8051的直流无刷电机控制系统设计，实现了速度、电流的双闭环控制。
Brushless motor control system design based on C8051 was introduced, speed and current double close loop control was realized.
介绍了反电动势过零位置检测的原理及实现方法，并采用了数字式转速、电流双闭环控制。
One kind of sensorless control system for brushless DC motor based on DSP was introduced and the principle of back-EMF zero-crossing detection and realization method was discussed in detail.
前者在常规的采用电压外环、电流内环的双闭环控制基础上，搭建数字锁相环、数字滤波器。
Digital PLL and digital filter are built based on conventional double closed-loop control which contains voltage loop and current loop.
对电源系统进行分析，选择合适变量设计一个稳定性好、动态响应快的电压电流双闭环控制。
Then this paper chooses the suitable variable to design the voltage and current double closed-loop controller, which has well stability and fast transient response.
软件部分是主要是实现对直线电机电流和速度的双闭环控制，电流和速度的调节均采用PI调节。
Software of the drive and control system realizes the current and speed closed-loop control, which contain PI adjuster.
系统采用电流、速度双闭环控制，电流、速度的调节采用PI调节，转子磁极位置通过霍尔元件检测。
The double close loops of speed and current control is introduced in the system and the PI control is implemented in the current and speed loop, the position of rotor pole is detected by hall element.
本文将三相四桥臂逆变器与重复控制技术、PI双闭环控制相结合，满足了非线性不平衡负载的要求。
In order to solve the problem mentioned above, a novel design which combines three phase fourlegs inverter, repetitive controller and PI double loop control.
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。
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.
研究表明，SLS快速成形的双闭环控制能够获得较好的控制稳定性并能进一步提高原型件的成形精度。
The investigation shows that the dual-closed-loop control for SLS rapid prototyping can obtain fine control stability, and can improve the accuracy of prototyping parts.
研究表明，SLS快速成形的双闭环控制能够获得较好的控制稳定性并能进一步提高原型件的成形精度。
The investigation shows that the dual-closed-loop control for SLS rapid prototyping can obtain fine control stability, and can improve the accuracy of prototyping parts.
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