Informatics Publishing Limited

Sobhy S. Dessouky ¹, Adel A. Elbaset ², Ali H. Kasem Alaboudy ³, H. A. Ibrahim ³, Saad A. Mohamed Abdelwahab ⁴

Affiliations
1 Port Said University, EG
2 Minia University, EG
3 Electrical Department, Suez University, Suez, EG
4 Electrical Department, Suez University, Suez, IN

Abstract

In this paper, a PV array is used for water pumping purposes at remote or abandoned locations. This paper focuses, matching the on-site induction-motor (IM) pumping loads with the given PV power for the most optimal operation using maximum photovoltaic power tracking (MPPT) based on perturb and observe (P&O) algorithm and technique with dynamic error driven PI controllers is introduced. A PV array subjected to constant and variable solar irradiations is designed to feed a water pumping load driven by a 3-phase IM.  A dc/dc boost converter, dc link capacitor, dc/ac, 3-arm, 6-pulse, 3-phase inverter are used as a power conditioning unit between the motor and PV array. The proposed inverter control selects the suitable operating point for PV voltage, current and power. MPPT based on perturb and observe (P&O) algorithm for the purpose of improving efficiency of the system is connected to the system. Simulation results demonstrate the operation of the unified system with and without controller under constant and variable solar irradiations. The main control objective is to run system as close as possible to the maximum power point operation under constant and variable solar irradiations.

Keywords

PV Pumping System, MPPT, and 3-Phase Induction Motor.

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Sobhy S. Dessouky ¹, Yasser S. Abdalla ², Khairy F. Sayed ³, Wessam A. Hafez ⁴

Affiliations
1 Electrical Engineering Department, Por Said University, EG
2 Electrical Engineering Department, Suez University, EG
3 Electrical Engineering Department, Sohag University, EG
4 Electrical Department, Sohag University, EG

Abstract

This paper introduces a design and simulation of an adaptive shunt active filter (SAF) for harmonic mitigation of an arc welding machine. This type of welding machines causes unacceptable current distortions in the utility electrical distribution system, especially when an adjacent manufacturing facility with extensive electronic controls exists. This work demonstrates effective use of active low-pass filter with the pulse width modulator PWM carrier strategy to control the current of active filter. The method is based on frequency domain. A model of a typical power system coupled with arc welding machine is presented. The active filter are implemented in power electronic simulation software, representative waveforms and spectral analysis is presented, simulation results show that the proposed active filter is very effective in harmonic elimination of an arc welding machine.

Keywords

Active Power Filter, Resistance Spot Welder, Low-Pass Filter, Harmonic Mitigation Techniques and Power Quality.

Full Text

     

Sobhy S. Dessouky ¹, Yasser S. Abdalla ², Khairy F. Sayed ³, Wessam A. Hafez ⁴

Affiliations
1 Electrical Engineering Department, Por Said University, EG
2 Electrical Engineering Department, Suez University, EG
3 Electrical Engineering Department, Sohag University, EG
4 Electrical Department, Sohag University, EG

Abstract

This paper introduces a design and simulation of an adaptive shunt active filter (SAF) for harmonic mitigation of an arc welding machine. This type of welding machines causes unacceptable current distortions in the utility electrical distribution system, especially when an adjacent manufacturing facility with extensive electronic controls exists. This work demonstrates effective use of active low-pass filter with the pulse width modulator PWM carrier strategy to control the current of active filter. The method is based on frequency domain. A model of a typical power system coupled with arc welding machine is presented. The active filter are implemented in power electronic simulation software, representative waveforms and spectral analysis is presented, simulation results show that the proposed active filter is very effective in harmonic elimination of an arc welding machine.

Keywords

Active Power Filter, Resistance Spot Welder, Low-Pass Filter, Harmonic Mitigation Techniques and Power Quality.

Full Text