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Engineering Review : Međunarodni časopis namijenjen publiciranju originalnih istraživanja s aspekta analize konstrukcija, materijala i novih tehnologija u području strojarstva, brodogradnje, temeljnih tehničkih znanosti, elektrotehnike, računarstva i građevinarstva, Vol. 44 No. 2, 2024.

Izvorni znanstveni članak

https://doi.org/10.30765/er.2470

Study of PLL less DSGTP System using band-pass filter and APC (active power coefficient) control

Saptaparna Basu Roy Chowdhury orcid id orcid.org/0000-0002-4690-4924 ; Department of Electrical Engineering, Cooch Behar Government Engineering College, PIN-736170, West Bengal, India *
Atanu Maji orcid id orcid.org/0009-0007-8260-1684 ; Department of Electrical Engineering, Cooch Behar Government Engineering College, PIN-736170, West Bengal, India
Sk Rabiul Hossain orcid id orcid.org/0009-0004-1364-7644 ; Department of Electrical Engineering, Cooch Behar Government Engineering College, PIN-736170, West Bengal, India
Pritam Kumar Gayen orcid id orcid.org/0000-0003-2599-4905 ; Department of Electrical Engineering, Kalyani Government Engineering College, PIN-741235, West Bengal, India

* Dopisni autor.

Puni tekst: engleski pdf 2.521 Kb

verzije

str. 127-145

preuzimanja: 72

citiraj

Sažetak

This paper represents a study on a grid-tied photovoltaic (PV) system connected to a non-linear load. The system includes a PV array, a boost converter, a voltage source inverter (VSI), and a coupling inductor for grid connection. The maximum power point tracking (MPPT) mechanism based on Perturb and Observe (P&O) method which is used to control the duty ratio of the boost converter. Synchronization is achieved through a second-order band-pass filter instead of a Phase Locked Loop (PLL). However, the non-linear load causes poor current quality, leading to a high Total Harmonic Distortion (THD) in the grid current, which may affect the sinusoidal nature of the grid current and other connected loads. To address the harmonics problem, an Active Power Coefficient (APC) control technique is implemented to control the PV inverter gate pulse. The proposed model has been simulated in Matlab/Simulink, and system output parameters are analysed graphically. The simulation results indicate that the proposed approach maintains the total harmonic distortion (THD) of the grid current below 5% even in changing weather conditions, which satisfies the IEEE 519 standard.

Ključne riječi

double stage grid tied photovoltaic (DSGTP) system; active power coefficient (APC) control; phase locked loop (PLL); band-pass filter; total harmonic distortion (THD)

Hrčak ID:

320425

URI

https://hrcak.srce.hr/320425

Datum izdavanja:

1.9.2024.

Posjeta: 496 *