Power supply design for Magnetron power source from single phase supply

A 300 W/ 50 Hz single-phase sine wave with a 555 timer IC controller was designed, simulated, implemented and tested to investigate output AC power quality. An input 12 VDC power supply, which simulates PV-Wind power source, was connected to the inverter circuit and charge-discharge energy storage was also studied. Results of simulation show that as well as the experiment result is obtained.This paper is present the advantage ofhybrid system wind &solar together in power supply system from the integration between time andlocation. It showsthe evolution of wind-solar in single-phase sine wave power inverter and provides the structure of information and communications technology and equipment.Some main techniques such as the circuit topology and operation modes of the key link, algorithm of the intelligent control charging and discharging and so on.

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Design and Construction of a Low-Cost Automatic Single-Phase Transfer Switch

FUOYE Journal of Engineering and Technology ◽

10.46792/fuoyejet.v6i1.579 ◽

2021 ◽

Vol 6 (1) ◽

Author(s):

Abiodun E Amoran ◽

Gerald K Ijemaru ◽

Olaitan Akinsanmi ◽

Watson Agbramu

Keyword(s):

Liquid Crystal ◽

Power Supply ◽

Single Phase ◽

Phase Transfer ◽

Liquid Crystal Display ◽

Power Source ◽

Phase System ◽

Alternative Source ◽

Automated Method ◽

Switch Power

Irregular power supply poses a serious problem in many developing countries with power outage usually experienced on a regular basis. Thus, this challenge necessitates the need for an automated method of power change over to an alternative source during power failure that will be an improvement over the manual change over system. This study aims to design and construct a microcontroller-based Automatic Transfer Switch (ATS) for a single-phase system. Atmega8 microcontroller was programmed to automatically switch power supply between a primary source and a secondary power source through the aid of relays. A modular approach was used in the design of this ATS, which incorporates Atmega8 microcontroller, diodes, resistors, L7805 voltage regulator, PC817 optocouplers, a buzzer alarm, NPN transistors, and a Liquid Crystal Display (LCD) that indicates which power source was available. This design is limited to 30A on full loading due to the power relay used in the design. The testing showed that the design was able to automatically switch power between two supply sources with no external aid and it performed optimally even when loaded to 90% of its maximum bearing-capacity.Keywords: Automatic Transfer Switch, Atmega8 Microcontroller, Liquid Crystal Display, NPN Transistors, PC817 Optocouplers, Relays

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Analisa Perancangan Filter LCL Pada Penyearah PWM Satu Fasa Full Bridge

CIRCUIT Jurnal Ilmiah Pendidikan Teknik Elektro ◽

10.22373/crc.v1i2.2082 ◽

2017 ◽

Vol 1 (2) ◽

Author(s):

Hari Anna Lastya

Keyword(s):

Direct Current ◽

Power Supply ◽

Single Phase ◽

Alternating Current ◽

Power Source ◽

The Other ◽

Lcl Filter ◽

The Third ◽

Pwm Rectifiers

Electronics devices need a direct current power supply although now only one alternating current power supply is available. Therefore, ac-dc converters which can convert an alternating current power supply to a direct current power supply will be needed. However, the use of this ac-dc converters will cause distortion in the form of current waves which are called harmonics. This harmonics can fault the work of the other electric devices which are attached to the same power source. Therefore, it is recommended that the harmonics generated by rectifiers should be under IEC 61000-3-2 standard. In this research will the reduction of harmonics by using LCL filter. At load of 2 kW, R of 5 ï—, L of 0,05 H at PWM rectifiers single phase full bridge with RL load produce the third harmonics current of 2.57 amperes, the installed LCL filter produces the third harmonics current of 1.26 amperes. According to IEC-61000-3-2 standard, the allowed third harmonics current is 2.3 amperes.

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Effect of Maximum Voltage Angle on Inverter Performance Applied in Uninterrupted Power Supply (UPS)

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.793.304 ◽

2015 ◽

Vol 793 ◽

pp. 304-308

Author(s):

Mahrizal Masri ◽

R. Badlisha ◽

Muhamad Irwanto ◽

N. Gomesh ◽

Y.M. Irwan ◽

...

Keyword(s):

Power Supply ◽

Single Phase ◽

Negative Impact ◽

Harmonic Distortion ◽

Power Source ◽

Phase Inverter ◽

Uninterrupted Power Supply ◽

Aquarium Water ◽

Single Phase Inverter ◽

Maximum Voltage

Uninterrupted power supply (UPS) sits between a power supply such as wall outlet and devices to prevent undesired feature that can occur within the power source such as outages, sags, surges and bad harmonics from the supply to avoid a negative impact on the devices. This paper presents a photovoltaic (PV) powered UPS using microcontroller PIC16F628A-I/P. It is a standby UPS whereas if the main power source fails to supply power to loads, a battery powered inverter turns on to continue supplying power. The battery is charged by the PV using solar charger and transfer switch controlled by the microcontroller. In this research, AC three-level waveform single phase inverter was developed and created by a microcontroller PIC16F627A-I/P with varied maximum voltage angle from 200 to 1800 and tested to a load of 240 V, 20 W AC aquarium water pump, and also analyzed effect of maximum voltage angle on the three-level single phase inverter performance. The result showed that maximum voltage angles of the inverter effected on root mean square value of AC voltage, current and power. If the maximum voltage angle was increased, therefore value of the AC voltage, current and power would increase. The maximum voltage angle would effect on the current total harmonic distortion (CTHD), the lowest CTHD of 15.448% was obtained when the maximum voltage angle was 1340.

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