Research of Digital Measurement and Control Technology for the Inverter of Power Supply

2011 ◽  
Vol 271-273 ◽  
pp. 797-801
Author(s):  
Huan Qi Tao ◽  
Yu Chuan Wu
Keyword(s):  
Power Supply ◽  
Power Converter ◽  
Present Condition ◽  
Practical Significance ◽  
Digital Measurement ◽  
Engineering Discipline ◽  
Inverter Power Supply ◽  
And Control ◽  
Measurement And Control ◽  
Basic Content

In this paper, basic content and development of power presented; and the present condition of inverter power supply is discussed; then practical significance and developmental prospect to the technology based on digitalization about power converter are described in detail; and new direction of study is explored for the development about electrical engineering discipline and application of the technology about solar energy.

scholarly journals METHOD OF PROCESSING EXPERIMENTAL DATA BY LINEAR FUNCTIONS OF VARIABLE LENGTH

2018 ◽  
pp. 74-82
Author(s):  
А. V. Zatylkin ◽  
D. A. Goluschko ◽  
Y. A. Varenik ◽  
E. S. Dementeva ◽  
B. L. Svistunov
Keyword(s):  
Experimental Data ◽  
Least Squares Method ◽  
Variable Length ◽  
Linear Functions ◽  
Practical Significance ◽  
Automated Processing ◽  
And Control ◽  
Measurement And Control ◽  
The Given ◽  
Accuracy Of Approximation

The purpose of the research is to increase the effectiveness of information and measurement and control systems of vibration testing equipment by introducing automated processing of experimental data allowing to extract with the required accuracy resonant bursts in the investigated amplitude-frequency characteristic section of the developed sample of a technical tool. To achieve this goal, a new method for processing experimental data by linear functions of variable length has been developed. The proposed method is based on the elements of the classical least squares method used to construct single approximating linear functions. The proposed method for processing experimental data differs from the known ones in that the number of linear approximating functions and their lengths vary depending on the required accuracy of approximation. The authors developed a mechanism for the formation of a sequence of linear functions on the considered segment, taking into account the given accuracy of approximation. The proposed mechanism is implemented in the form of algorithms, the description of which is presented in the work. Practical significance of the application of the developed method consists in reducing the processing time of the experimental data and obtaining the information necessary for the development engineers to provide a given level of strength and stability to external vibrational influences of the developed technical tools.

Study on PLC Interference Suppression Technique Monitoring System of the Airport Power Supply Equipment

2013 ◽  
Vol 325-326 ◽  
pp. 1206-1209
Author(s):  
Xiao Bin Wei ◽  
Yi Zhu ◽  
Song Lu ◽  
Wei Zhang
Keyword(s):  
Control System ◽  
Power Supply ◽  
Interference Suppression ◽  
Measurement And Control System ◽  
Suppression Technique ◽  
Supply Equipment ◽  
Software And Hardware ◽  
Electro Magnetic ◽  
And Control ◽  
Measurement And Control

In allusion to the airdrome Electro Magnetic Interference (EMI),researched and designed the software and hardware technique methods on interference suppression for Measurement and control system based on PLC of airdrome power supply equipment.

Design of Full-Digital Measurement and Control System on Grain Situation

2013 ◽  
Vol 765-767 ◽  
pp. 1849-1853
Author(s):  
Xiao Fan Li ◽  
Hui Yuan Li
Keyword(s):  
Control System ◽  
Low Cost ◽  
Network Measurement ◽  
Host Computer ◽  
Digital Measurement ◽  
Measurement And Control System ◽  
Computer Measurement ◽  
Cost Efficient ◽  
And Control ◽  
Measurement And Control

A scheme for measurement and control system on grain situation is presented in this paper. This system is mainly composed of sensor network, measurement and control extension, communication host and host computer. Measurement and control extension centres on microcontroller C8051 to accomplish the measurement of grain temperature and humidity in granary. Instruction is transferred to measurement and control extension by communication host, at the same time, transferring the data measured by extension to host computer. Host computer achieves the regimentation of whole system by applying PC. Compared with traditional ones, this measurement system is much more simple, low-cost, efficient and responsive, with profoundly immediate significance and wide prospect.

A Study on Speed Control System Based on STC89C51

2015 ◽  
Vol 713-715 ◽  
pp. 723-725 ◽  
Author(s):  
Jun Hai Jiang ◽  
Ming Hui Liu
Keyword(s):  
Control System ◽  
Engine Performance ◽  
Sensor Data ◽  
Digital Measurement ◽  
Motor Speed ◽  
Actual Measurement ◽  
Measurement And Control System ◽  
And Control ◽  
Measurement And Control ◽  
Made In

Introduces a STC89C51 microcontroller core with the speed of measurement and control system, the system can control the motor starts and stops, either manually or automatically adjust the duty cycle to control the motor speed is set by the Hall sensor data, for motor speed is measured to calculate and display the current motor speed in real time on the LCD. The system is made in the actual measurement with good results, as the research engine performance provides an important reference, so that the entire digital measurement speed system can be widely used, there is a strong practicality.

Inverter power supply and control system for high pulse energy laser shock processing

2012 ◽  
Vol 10 (s2) ◽  
pp. S21418-321422
Author(s):  
Haiying Xu Haiying Xu ◽  
Zhifei Miao Zhifei Miao ◽  
Zhigang Che Zhigang Che ◽  
Wei Zhang Wei Zhang ◽  
Shikun Zou Shikun Zou ◽  
...  
Keyword(s):  
Control System ◽  
Power Supply ◽  
Laser Shock ◽  
High Pulse Energy ◽  
Laser Shock Processing ◽  
Inverter Power Supply ◽  
High Pulse ◽  
Energy Laser ◽  
And Control ◽  
Shock Processing

Digital Measurement and Control Technology of Grey Predictor-Based Inverse Hyperbolic Sliding Function for Solar PV Inverters

2017 ◽  
Vol 870 ◽  
pp. 323-328
Author(s):  
En Chih Chang ◽  
Rong Ching Wu ◽  
Guan Yu Chen ◽  
Pei Shan Wang ◽  
Kuo Yuan Liao
Keyword(s):  
Steady State ◽  
Tracking Error ◽  
Harmonic Distortion ◽  
Digital Measurement ◽  
Control Technology ◽  
Solar Pv ◽  
Pv Inverter ◽  
Highly Nonlinear ◽  
And Control ◽  
Measurement And Control

This paper develops a digital measurement and control technology of grey predictor-based inverse hyperbolic sliding function for solar PV inverters. The advantage of inverse hyperbolic sliding function (IHSF) is very low sensitivity to system uncertainties. However, when a large parameter variation or a sudden external load interference is applied, the steady-state errors still occur in the IHSF controlled solar PV inverter and incur high total harmonic distortion (THD), even deteriorate control accuracy. To eliminate steady-state errors, a grey predictor is used for the prediction of voltage THD. Once a high voltage THD of the solar PV inverter output is detected and then measured by grey predictor, the tracking error of the IHSF controlled system will gradually decrease to zero, thus achieving zero steady-state errors. With the proposed measurement and control technology, a digital closed-loop solar PV inverter system will yield high-quality AC output voltage with low THD and fast dynamic response even under highly nonlinear loading. Experimental results for the solar PV inverter are performed in support of the proposed technology.

Study on the Electronic Ignition System Bench on SCM

2012 ◽  
Vol 590 ◽  
pp. 212-215
Author(s):  
Shan Zhen Xu ◽  
Hong Lei Gu ◽  
Cheng Wang
Keyword(s):  
Signal Processing ◽  
Power Supply ◽  
Supply Voltage ◽  
Power Supply Voltage ◽  
Ignition System ◽  
Voltage Signal ◽  
Temperature Signal ◽  
The Moment ◽  
And Control ◽  
Measurement And Control

To enhance the power of the engine and improve the emissions performance, The Intake air temperature signal , knock signal, throttle signal and power supply voltage signal were used as the correction references for the ignition advance angle. According to the parameter characteristics, the schemes of the measurement and control were proposed. The sensors were selected and corresponding parameters were determined. And then parameters of signal processing circuits designed, so that determined the moment of ignition. The experiment proved that the electronic ignition system designed in this paper, can meet the expected demand.

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