The control scheme and operating principle of a double closed-loop AC/DC power converter system are discussed by using physics.
从物理角度讨论了双闭环交/直流功率变换器系统的控制方案和工作原理。
The d. c. traction portion of which comprises current and voltage feedback to form double closed-loop speed adjustment system.
该机的直流牵引部采用具有电流反馈和电压反馈的双闭环调速系统。
This paper puts forward a voltage and current double closed-loop controlling method based on three-phase voltage source PWM inverter.
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。
Digital PLL and digital filter are built based on conventional double closed-loop control which contains voltage loop and current loop.
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。
By using the fuzzy self-adaptation, this paper adjusts the rate and integral parameters of the speed-adjusting system of DC double closed-loop.
应用模糊自适应对直流双闭环调速系统中的转速调节器的比例、积分参数进行整定。
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.
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。
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.
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。
The working principle of a new double closed-loop thyristor trigger CF6B-2A and its application in the control system of driver motor in the extruder were introduced.
介绍了双闭环可控硅触发器CF 6 B - 2a的工作原理，并将该器件应用于挤塑机主驱动电动机控制系统中。
The design adopts 2407DSP chip of TI Company to realize numerical control of PWM rectifier double closed-loop, and to realize software design to receive preliminary result.
采用TI公司的2407DSP芯片实现PWM整流器双闭环数字控制，并进行软件设计，得到了初步的结果。
In the design of the software part, this paper gives the software design of open-loop control with SPWM and the software design of voltage-current double closed-loop control.
在软件设计部分中，首先进行了开环系统软件设计和电压电流双闭环控制系统软件设计。
The water-curtain controlled cooling process after rolling steel plate in Shougang Group is analyzed, then a double closed-loop fuzzy control scheme for flow ratio is proposed.
分析了首钢中厚板轧后处理中的水幕控冷工艺过程，提出了一种双闭环流量比值模糊控制系统方案。
DIFG double closed-loop vector control strategy is established; regulating principle and dynamic characteristic in active power control mode or speed control mode is discussed.
建立了双馈发电机双闭环矢量控制系统，研究了功率控制模式和转速控制模式下发电机系统的调节原理和动态特性。
To solve the problem, in this paper we put forward a double closed-loop control configuration and a fuzzy control method to ensure the steady output power when the load changes.
针对这种情况，提出了一种双闭环控制结构和模糊控制方法，使得负载变化时保持感应加热电源的输出功率稳定。
To solve this problem, in this paper we put forward a double closed-loop control configuration and a fuzzy control method to ensure the steady output power when the load changes.
针对这种情况，提出了一种双闭环控制结构和模糊控制方法，使得负载变化时保持电磁炉的输出功率稳定。
According to engineering design method a double closed-loop DC motor control system was designed, a modulator structure was selected and computed, and its parameter was corrected.
采用工程设计方法对双闭环直流调速系统进行辅助设计，选择调节器结构，进行参数计算和近似校验。
This paper introduces the design concept of double closed-loop ratio control system as well as the design and the application about acetylene with hydrochloride in chloroethylene synthesis unit.
介绍了双闭环比值控制系统的设计思路以及在氯乙烯合成装置中乙炔和氯化氢比值控制系统的设计和应用，以及在设计比值控制系统时所应注意的有关事项。
The theoretical analysis and field adjustment of a AC cascade speed regulating system with double closed-loop employed in a synthetic fibre bar making unit imported from Switzerland are conducted.
本文对一从瑞士引进的应用于合成纤维成条机的交流串级调速双闭环系统进行了理论分析与现场调试。
The press takes use of advanced two-way cartridge valve system and imported electric pump technology which can realize double closed loop control of pressure and flow rate.
液压系统采用了先进的二通插装阀系统、进口高性能的电子泵技术，实现了主缸压力与流量的双闭环控制；
Then, this thesis applies IP control algorithm to change controller in outer loop but not in inner loop based on basic double closed loop control system.
然后，本文在传统双闭环控制的基础上，内环的控制算法不变，改变外环控制器的设计算法，主要采用IP控制方案。
Double closed loop system has a little overshoot and short transition time, whose performance is better than single closed loop system.
双闭环转速控制系统超调小、过渡时间短，性能要好于单闭环系统。
To improve BLDCM control result, this paper establishes a full digital double closed loop system which USES microprocessor-TMS320LF2407A to control the communication and speed of BLDCM.
为了提高无刷直流电机的控制效果，运用TMS320 LF 2407 A芯片，建立了无刷直流电机全数字双闭环控制系统，给出了硬件电路设计和部分软件编制方法。
In this system we apply the double closed loop theory to guarantee the accuracy of position control.
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。
Double closed loop control is implemented with increment encoder through signal of speed and position.
采用增量式编码器，通过速度及位置信号进行双闭环控制。
The whole system adopts double closed loop control and has good harmonic compensation performance.
整个系统采用双闭环控制，具有较好的谐波补偿性能。
This paper studies a DC double closed loop digital PWM speed adjusting system controlled by 8098 single chip computer to explore the feasibility for the middle or small power motors.
对8098单片机控制的全数字直流双闭环pwm调速系统进行了研究，探讨了该系统在中小型功率直流电机上应有的可行性。
Application of the double closed loop control has already been popular in SMPS, because such a system has a fast dynamic response and good stability.
双闭环控制在开关电源中的应用非常普遍，是因为它使系统具有较好的动态性和稳定性。
Utilizing the information observed, a new type of slip frequency controlled torque-speed double closed loop system is developed.
基于观测出的状态信息，构成了转差频率控制的转矩速度双闭环新型变频调速系统。
This paper advances a simple and effective analytic method and compensating design for the velocity control system of a double closed loop pump control.
本文对双闭环泵控式速度控制系统提供了一种简便而有效的分析方法及校正设计。
This paper advances a simple and effective analytic method and compensating design for the velocity control system of a double closed loop pump control.
本文对双闭环泵控式速度控制系统提供了一种简便而有效的分析方法及校正设计。
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