Single-phase control of three-phase fuelcell-battery under unbalanced conditions considering off-grid and grid-tied states

2021 ◽  
Vol 194 ◽  
pp. 107112
Author(s):  
Reza Hemmati ◽  
Hossien Faraji
Keyword(s):  
Single Phase ◽  
Phase Control ◽  
Three Phase

scholarly journals Circuito de arranque suave para un motor monofásico de corriente alterna conectado a un Sistema Fotovoltaico

2019 ◽  
pp. 27-39
Author(s):  
Jeremías Bravo-Tapia ◽  
Eric García-Martínez ◽  
Francisco Ramos-Guzmán ◽  
Yoxkin Estévez-Martínez
Keyword(s):  
Single Phase ◽  
Phase Control ◽  
Photovoltaic System ◽  
Washing Machine ◽  
Digital Oscilloscope ◽  
Soft Start ◽  
Ac Motor ◽  
Soft Starter ◽  
Three Phase ◽  
Frequency Variations

This work presents the study of a circuit used as a Soft Starter for a single-phase AC motor connected to a photovoltaic system. The direct start of a motor connected to an inverter activates its protection because it is not able to withstand the current that the motor demands in its start, that is why a technique is proposed that minimizes and eliminates the high peaks of current that generate Currently there are soft starters or frequency variations and other soft start techniques that are used for three-phase motors, what is required for this case is a soft starter for single phase motors. The circuit used as a test for Soft Starter allows performing the phase control by varying the firing angle. The photovoltaic system with which the soft starter tests were carried out has an inverter of 1,500 W to which a single-phase motor of a quarter of Hp was connected. Measurements were made with a digital multimeter, a hook Wattmeter, a digital oscilloscope and a washing machine motor. The main bases for the development of Soft Starters are left connected to a photovoltaic inverter for the start of single-phase motors.

Three-phase to Single-phase Matrix Converter for Improvement of Three-phase Voltage Unbalance in Distribution System

2015 ◽  
Vol 135 (3) ◽  
pp. 168-180 ◽  
Author(s):  
Ryota Mizutani ◽  
Hirotaka Koizumi ◽  
Kentaro Hirose ◽  
Kazunari Ishibashi
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
Matrix Converter ◽  
Phase Voltage ◽  
Voltage Unbalance ◽  
Three Phase

Analysis of a Novel Three-phase Asynchronous Generator Based on Graph Theory for Supplying Single-Phase Load

2021 ◽  
pp. 1-18
Author(s):  
Sambaran Ray ◽  
Himadri S. Chatterjee ◽  
Sankar N. Mahato ◽  
Nirmal K. Roy
Keyword(s):  
Graph Theory ◽  
Single Phase ◽  
Three Phase ◽  
Asynchronous Generator

Design and Implementation of Wireless Voltage Monitoring System Based on Zigbee

2017 ◽  
Vol 12 (3) ◽  
pp. 83-96 ◽  
Author(s):  
Luo Xiaohui
Keyword(s):  
Monitoring System ◽  
Single Phase ◽  
Low Cost ◽  
Moving Average ◽  
Voltage Sensor ◽  
Wireless Transmission ◽  
Phase Voltage ◽  
Medium Voltage ◽  
Wireless Monitoring ◽  
Three Phase

This paper proposed a low cost wireless monitoring system based on ZigBee wireless transmission, and designed a new floating voltage sensor which is suitable for the monitoring of medium voltage and high voltage(MV/HV) public equipment. The system used TI-CC2530 as the controller, proposed a new moving average voltage sensing(MAVS) algorithm by reasonable assumptions, and adopted algorithms to perform the theoretical analysis for the single phase and three-phase voltage. At last, the author carried out a practical experiment on the wireless floating voltage sensor under the voltage up to 30kV, the experimental results showed that the proposed low cost wireless sensor can achieve a good voltage monitoring function, and the error is less than 3%.

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