scholarly journals Design and Simulation of Enhanced Adaptive Perturbation and Observe MPPT Algorithm for PV Fed DC to DC Boost Converter System

In this paper enhanced adaptive Perturb and Observe maximum power point tracking algorithm is presented for solar PV fed DC-DC to boost converter system. This proposed MPPT algorithm overcome the problem in conventional perturb and observe MPPT technique. The proposed system is modelled in MATLAB Simulink software package. System analyzed with various operating conditions and corresponding results are analyzed. The simulation results were compared with experimental results.

Author(s):  
Mohamed Mahmoud Ismail

This paper presents 200 KW three phase standalone photovoltaic systems supplying pumping station consist of four pumps 40 KW rating. The system utilizes a two stage energy conversion power conditioning unit topology composed of a DC-DC boost converter and three level-three phase voltage source inverter (VSI). The Boost converter in this paper is designed to operate in continuous mode and controlled for maximum power point tracking (MPPT). The fluctuating output power of the PV array system during the day is the commonly problem in the power system.  In this paper a nickel-Cadmium battery will be used to maintain the output power generated from the PV array supplying the pumps to be constant all the day under different operating conditions. The system is modeled and studied using MATLAB/Simulink


TRANSIENT ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 918
Author(s):  
Akhmad Fauzi ◽  
Mochammad Facta ◽  
Sudjadi Sudjadi

Potensi energi matahari di Indonesia sangat melimpah, hal ini menguntungkan dalam pembangkitan energi listrik dengan panel surya. Energi matahari yang tidak tetap membuat efektitifitas panel surya berkurang.  Terdapat dua metode dalam memaksimalkan keluaran panel surya yaitu, metode dinamis dengan menggunakan motor listrik untuk mengarahkan panel surya ke matahari dan metode statis  atau Maximum Power Point Tracking (MPPT) menggunakan konverter daya. MPPT digunakan untuk mencari titik daya maksimum dari kurva karakteristik P-V pada panel surya. Pengaruh perubahan irradiasi dan suhu sehingga titik daya maksimum panel surya berubah-ubah. Pada penelitian ini dilakukan perancangan MPPT dengan metode Perturb and Observe (P&O) dengan Buck Boost Converter untuk mencari titik daya maksimum panel surya. Pada pengujian sistem didapatkan hasil sistem MPPT mampu mencari titik daya maksimum surya sebesar 5.71 watt pada irradiasi 1000 watt/m2 temperatur 29oC, sedangkan tanpa MMPT rata-rata daya maksimum pada beban 50Ω sebesar 5,22 watt, 39Ω sebesar 4,99 watt. Irradiasi 750 watt/m2 temperatur 29oC dengan MPPT mampu mencari titik daya maksimum surya sebesar 3.92 watt,sedangkan tanpa MPPT rata-rata daya maksimum pada beban 50Ω sebesar 3.56 watt, 39Ω sebesar 3.38 watt.


Author(s):  
Hussain Attia ◽  
Suleyman Ulusoy

Based on the fact that the effectiveness of perturb and observe algorithm in a maximum power point tracking maximum power point tracking (MPPT) in a photovoltaic array is a tradeoff between the tracking speed during the transient response and the oscillation around the stable level during the steady state response. To have a high tracking speed, incremental step should be high, but this high incremental step increases the oscillation level around the steady level of MPPT, whereas adopting low incremental step reduces the algorithm response time but improve the response during the steady state condition. This paper presents a new perturb and observe algorithm based on two step variable control for MPPT applications. A two variable incremental step control is proposed to gain the merit of high step for guaranteeing a fast response during tracking process, and also for guaranteeing the merit of low oscillation during the steady state working condition through adopting a low step during steady state response. The effectiveness of the proposal is proved by the analysis of the simulation results via MATLAB/Simulink software, and by the comparison of the simulation results with a conventional perturb and observe MPPT algorithm.


Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3182 ◽  
Author(s):  
M. Bani Salim ◽  
H. S. Hayajneh ◽  
A. Mohammed ◽  
S. Ozcelik

Tracking the maximum output power of a photovoltaic (PV) cell is an important problem to harvest more energy at different weather and load conditions. This paper presents the design and simulation of a robust direct adaptive controller (RDAC) for maximum power point tracking (MPPT) device based on boost converter topology. A mathematical model is developed, and a suitable RDAC is designed for MPPT device, and simulations are performed using MATLAB/Simulink to verify the controller’s robustness at varying operating conditions. The real-time irradiance and temperature data are used on an hourly basis to test the suggested MPPT adaptive controller for a typical sunny day in summer and winter. The simulation results show that the RDAC performs excellent tracking under varying conditions such as irradiance, temperature, load, boost converter inductance, and capacitance.


Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 108 ◽  
Author(s):  
Hina Gohar Ali ◽  
Ramon Vilanova Arbos ◽  
Jorge Herrera ◽  
Andrés Tobón ◽  
Julián Peláez-Restrepo

In this paper, nonlinear sliding mode control (SMC) techniques formulated for extracting maximum power from a solar photovoltaic (PV) system under variable environmental conditions employing the perturb and observe (P and O) maximum power point tracking (MPPT) technique are discussed. The PV system is connected with load through the boost converter. A mathematical model of the boost converter is derived first, and based on the derived model, a SMC is formulated to control the gating pulses of the boost converter switch. The closed loop system stability is verified through the Lyapunov stability theorem. The presented control scheme along with the solar PV system is simulated in MATLAB (matric laboratory) (SMC controller and PWM (Pulse Width Modulation) part) and PSIM (Power electronics simulations) (solar PV and MPPT algorithm) environments using the Simcoupler tool. The simulation results of the proposed controller (SMC) are compared with the classical proportional integral derivative (PID) control scheme, keeping system parameters and environmental parameters the same.


Transmisi ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 96-102
Author(s):  
Machmud Effendy ◽  
Rosyadi Nur Syahputra ◽  
Khusnul Hidayat

MPPT (maximum power point tracking) merupakan cara untuk memaksimalkan daya keluaran pada pembangkit listrik tenaga bayu (PLTB). Sistem MPPT pada PLTB terdiri dari DC-DC converter dan metode kontrol. Pada penelitian ini, sistem MPPT menggunakan Four Switch Buck Boost (FSBB) converter, dimana converter ini memiliki polaritas tegangan yang sama antara input dan output, ripple tegangan rendah, dan efisiensi daya lebih besar dibandingkan dengan Buck Boost Converter. Metode kontrol yang digunakan adalah  Perturb and Observe (P&O)- ORB (Optimum Relations-Based) yang memiliki tingkat osilasi lebih rendah dan efisiensi lebih tinggi dibandingkan dengan metode P&O.Sistem MPPT disimulasikan menggunakan software PSIM untuk mengetahui performa P&O-ORB dan FSBB converter. Evaluasi kinerja  P&O-ORB dan FSBB diuji dalam kondisi kecepatan angin 5 m/s. Hasil simulasi menunjukkan FSBB memiliki tingkat kesalahan yang lebih kecil daripada Buck Boost yaitu 0,02%. Dan sistem MPPT dengan metode P&O-ORB memiliki tingkat efisiensi yang tinggi mencapai 98,01 %.


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