A Versatile Power Source for Teaching Power Electronics

A thyristor power source is described which provides control of ten different power circuits including a.c. regulators, single-phase and three-phase rectifiers. Front panel controls allow for synchronising and optimisation of the servosystem.

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Thermal Equivalent Current of Delta Connected or V Connected Three Phase Power Source for Multiple Intermittent Single Phase Loads

JOURNAL OF THE JAPAN WELDING SOCIETY ◽

10.2207/qjjws1943.33.120 ◽

1964 ◽

Vol 33 (2) ◽

pp. 120-124

Author(s):

Kohei Ando

Keyword(s):

Single Phase ◽

Power Source ◽

Equivalent Current ◽

Three Phase

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Analysis of Two-Phase Operation Mechanism of Three-Phase Motor Based on Capacitor Phase Shift Method

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.556-562.2058 ◽

2014 ◽

Vol 556-562 ◽

pp. 2058-2062

Author(s):

Yu Ping Huang ◽

Yue Zhong ◽

Zai Ping Zheng ◽

Ying Xu ◽

Hong Xing Wu

Keyword(s):

Phase Shift ◽

Induction Motor ◽

Single Phase ◽

Power Source ◽

Simulation Software ◽

Practical Significance ◽

Two Phase ◽

Shift Method ◽

Three Phase ◽

Phase Shift Method

In the absence of a three-phase power source, single-phase operation of three-phase induction motor used single-phase power source had a certain practical significance. In this paper, utilized symmetrical component method analysed the asymmetric circuit system of motor, will be voltage and current of the three-phase stator windings decomposed into positive, negative and zero sequence three groups symmetrical components. The theory is analyzed and the formula is deduced of capacitor phase shift method, solved the problem of starting torque, proposed to add starting capacitors and deduced the optimal value of starting capacitor. Finally, the single-phase operation of three-phase induction motor is simulated and verified by simulation software.

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Taihe Circuit, a Novel Circuit Topology for Conversion from Single-Phase to Three-Phase

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1077.172 ◽

2014 ◽

Vol 1077 ◽

pp. 172-176

Author(s):

Yong Qiang Zhu ◽

Wen Rui Guo ◽

Guan Jie Wang ◽

Guang Quan He ◽

Ya Feng Wen

Keyword(s):

Single Phase ◽

Average Power ◽

Power Source ◽

Small Time ◽

Two Phase ◽

Circuit Topology ◽

Time Period ◽

Three Phase ◽

The One ◽

Symmetrical Load

This paper presents a brand-new splitting phase topology based on three-phase full-bridge inverter, which is named ‘Taihe Circuit’. This circuit topology resembles the traditional three-phase full-bridge inverter except for the direct connection of its two-phase output with the two terminals of the one-phase power source. Its operating principles are as follows: one-phase power source first charges the DC capacitor through three-phase full-bridge inverter in a small time period. After the voltage of the DC capacitor reaches stability, three-phase full-bridge inverter can output three-phase symmetrical AC voltage. The average power of the one-phase AC source equals to the power consumed by the three-phase symmetrical load, and the fluctuation of the power of the AC source corresponds to the charge and discharge of the capacitor on the DC side of the inverter. This circuit topology can achieve the conversion from one-phase AC source to three-phase symmetrical AC source when knowing three-phase load and can be used cooperatively with other circuits in some situations. In comparison to traditional scheme, a combination of one-phase rectification and three-phase inversion, the proposed brand-new topology requires less power electronic devices, as is more economically practical. As a final note, feasibility of the topology is verified through simulation.

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A Novel Power Factor Corrected Converter For Solar Pv Emulator

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.e7713.088619 ◽

2019 ◽

Vol 8 (6) ◽

pp. 370-374

Keyword(s):

Single Phase ◽

Power Source ◽

Boost Converter ◽

Solar Pv ◽

Photovoltaic Modules ◽

Pv Panel ◽

Three Phase ◽

In Series ◽

Converter Design ◽

Simulation Results

This Paper Presents A Pfc Converter Design For A Solar Pv Emulator. A Boost Converter Is Proposed As A Pfc Converter. The Photovoltaic Modules Are Connected In Series As An Array. The Pfc Buck-Boost Converter Circuit Provides The Compensated Voltage To The Pv Panel. The Pfc Converter Circuit Has Been Simulated In Simulink/Matlab. The Simulation Results Shows The Single Phase And Three Phase Output Voltages Along With The Pfc Correction.. The Pv Panel Compensates The Voltage Provided By The Power Source After Conversion From Ac To Dc.

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