Application of SENLAN SB60 in Flow Variable Frequency Speed Control System

2013 ◽  
Vol 860-863 ◽  
pp. 2320-2323
Author(s):  
Jiao Yue Liu ◽  
Ju Qing Yang ◽  
Lin Ma
Keyword(s):  
Control System ◽  
Flow Control ◽  
Frequency Converter ◽  
Asynchronous Motor ◽  
Speed Control ◽  
Output Frequency ◽  
Speed Regulation ◽  
Three Phase ◽  
Speed Control System ◽  
Voltage Signal

The frequency speed control system in flow control based on SENLAN SB60 frequency converter is made up of input set value and actual value which is the feedback voltage signal given by flow sensor, then adjusted by process PID automatic control, changes output frequency to regulate the speed of three-phase asynchronous motor to achieve the purpose of speed regulation, thus the tank's flow control can be obtained.

scholarly journals Twin Channel of Speed Control System Based on DSP

2011 ◽  
Vol 2-3 ◽  
pp. 447-451
Author(s):  
Bin Li ◽  
Zheng Feng Cao ◽  
Jin Ping Hong
Keyword(s):  
Control System ◽  
Frequency Conversion ◽  
Speed Control ◽  
Regulation System ◽  
Motor Speed ◽  
The Core ◽  
Speed Regulation ◽  
Speed Control System ◽  
Complex Algorithm ◽  
Exchange Data

A microprocessor as the core of the digital controller has become one of the major features AC speed regulation system in modern. Based on DSP as the core of the speed control system，it can realize complex algorithm. At the same time, it can achieve the diagnosis of system’s fault, and the self-setting of parameters controlled, etc. Thus it can make the motor speed control system have higher performance. This paper introduces the motor speed control system which consists of three DSP. This system is able to adjust two Frequency conversion motor. Division of work to the DSP is according to the function of DSP. Inter-DSP makes use of dual-port RAM to exchange data and communicate. They work together to achieve and improve the performance of the control system.

Low Cost Three-Phase Motor Speed Control System Design for Educational Laboratory Practices

2021 ◽  
pp. 315-324
Author(s):  
Álvaro Michelena ◽  
Francico Zayas-Gato ◽  
Esteban Jove ◽  
José-Luis Casteleiro-Roca ◽  
Héctor Quintián ◽  
...  
Keyword(s):  
Control System ◽  
System Design ◽  
Low Cost ◽  
Speed Control ◽  
Control System Design ◽  
Motor Speed ◽  
Three Phase ◽  
Speed Control System

Modeling and Simulation of Voltage Frequency Ratio Control System for Asynchronous Motor

2013 ◽  
Vol 756-759 ◽  
pp. 768-774
Author(s):  
Jun Rong ◽  
Yue Jiao Ding ◽  
Xi Chen ◽  
Li Wan ◽  
Yi Ming Li
Keyword(s):  
Control System ◽  
Agricultural Production ◽  
Asynchronous Motor ◽  
Simulation Models ◽  
Regulation System ◽  
Ac Machines ◽  
Speed Regulation ◽  
Three Phase ◽  
Voltage Frequency ◽  
Machine Speed

Alternating current (AC) machine speed regulation system plays a very important role in our industrial and agricultural production. This paper focuses on the three-phase asynchronous motor which account for most of the proportion of the AC machines. Firstly, this paper establishes three mathematical models of asynchronous motor based on dq coordinate system and introduces the principle of V/f speed-adjusting for asynchronous motor, and then the paper builds the simulation models of V/f speed-adjusting control system for asynchronous motor based on Matlab/Simulink. The simulation results of the V/f speed-adjusting control system verifies the correctness of the simulation models and the principle of speed regulation.

Motor Control System Based on DSP Four-Bridge Arm Topology

2014 ◽  
Vol 644-650 ◽  
pp. 553-558
Author(s):  
Juan Feng
Keyword(s):  
Motor Control ◽  
Control System ◽  
Control Method ◽  
Dimensional Space ◽  
Asynchronous Motor ◽  
Speed Control ◽  
Torque Ripple ◽  
Space Vector ◽  
Speed Control System ◽  
Motor Control System

This paper proposes a space vector motor control system based on DSP four-legged bridge topology A three-dimensional space vector control principle based on four-bridge arm three-phase inverter is introduced with a MATLAB model using space vector Motor Control Algorithm instead of traditional Motor Control method. A DSP experimental setup is also carried out to verify the control theory and simulation result. The experiment and simulation results show that the speed control system helps the asynchronous motor to achieve the consistent response characteristics with separately excited DC machine. When the motor doesn't work or the load is unstable, asynchronous motor can still achieve excellent electrical characteristics with the proposed speed control system, such as quick start, small overshoot and static torque ripple.

Study of the Speed Control System of a Heavy-Duty Gas Turbine

2015 ◽  
Author(s):  
Yue Cao ◽  
Jiaying Wang ◽  
Yiping Dai ◽  
Danmei Xie
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Power Grid ◽  
Frequency Converter ◽  
Speed Control ◽  
Frequency Regulation ◽  
Heavy Duty ◽  
Speed Control System ◽  
Heavy Duty Gas Turbine ◽  
Run Up

Gas turbine plays an important role in both the power generation and the frequency regulation of the power grid. In this paper, we have designed a speed control system for the heavy-duty gas turbine. Specifically, the speed control can be organized into four phases, including startup frequency converter (SFC), run-up ramp controller, speed/load controller and grid control center. Firstly, SFC determines the speed during the initial start-up period as the gas turbine and SFC are coaxial. Secondly, after SFC stops, the run-up ramp controller takes over the speed control until near the rated speed. Then, the speed/load controller is selected by a minimum selector to control the speed of the gas turbine. Finally, after synchronization with the power grid, the speed of the gas turbine depends on the frequency of the grid. In order to study the dynamic characteristics of the speed control system, a model of the gas turbine with its control system has been designed in SIMULINK based on the modular modeling method. The simulation results showed that the transient responses had good performances. So it seems that the speed control system that we designed could regulate the gas turbine during a variable condition.

Analysis on Failure of Alternate Control between Electronics and Hydraulic Adjustment System for a Type of Engine

2015 ◽  
Vol 778 ◽  
pp. 225-228
Author(s):  
Yan Fei Liu ◽  
Xiao Ming Wang ◽  
Shu Yun Wang ◽  
Qi Wei Wang ◽  
Chao Ji Zhou ◽  
...  
Keyword(s):  
High Pressure ◽  
Control System ◽  
Speed Control ◽  
Engine Fuel ◽  
Hydraulic Actuator ◽  
Speed Regulation ◽  
Speed Control System ◽  
Alternate Control ◽  
Adjustment System

This article briefly describes the main characteristics of a certain type of engine fuel control system, deeply researches the alternate control of electronics and mechanical hydraulic actuator in the throttle and the largest state of the high-pressure speed regulation aiming at the speed control system malfunction,and avoid the such failure of the engine.

The Analysis on the Effect of Speed Regulating System on Low Frequency Oscillation

2015 ◽  
Vol 737 ◽  
pp. 220-225
Author(s):  
Tong Tian Deng ◽  
Jia Sheng Wang ◽  
Xiao Jun Li ◽  
Xi Tian Wang ◽  
Jin Fu Liu ◽  
...  
Keyword(s):  
Control System ◽  
Forced Oscillation ◽  
Oscillation Mode ◽  
Low Frequency ◽  
Speed Control ◽  
Regulation System ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Speed Regulation ◽  
Speed Control System

With the strengthening of interconnected power grid connection, interval oscillation mode damping continue to improve, interval power oscillation accidents still occur, however, the negative damping mechanism of the classic cannot be satisfactorily explain these phenomena, this paper provides the researches forced oscillation mechanism of the low frequency oscillation, the speed control system is likely to form the forced oscillation source, speed regulation system and low frequency oscillation formed an adverse coupling effect. In this paper, based on the mechanism of their method, speed control system are analyzed, the effect of various parameters on the low frequency oscillation in order to avoid speed regulation system to participate in the low frequency oscillation provides technical support.

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