Statistical modeling of DSP-based Hill-climbing MPPT algorithms in noisy environments

Al-Atrash, H.; Batarseh, Issa; Rustom, K.

doi:10.1109/apec.2005.1453286

Cited by 65 publications

(25 citation statements)

References 6 publications

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“…This method works on the basis of the principle that in the MPP. The hill climbing algorithm was proposed in [14]. In this method, the duty cycle of the power converter can change one unit in any stage and the power is absorbed from the array compared to the previous stage.…”

Section: Wearinessmentioning

confidence: 99%

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The Design and Construction of a High Efficiency Satellite Electrical Power Supply System

Mousavi¹

2016

Journal of Power Electronics

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In this paper, a high efficiency satellite electrical power supply system is proposed. The increased efficiency of the power supply system allows for downscaling of the solar array and battery weight, which are among the most important satellite design considerations. The satellite power supply system comprises two units, namely a generation unit and a storage unit. To increase the efficiency of the solar array, a maximum power point tracker (MPPT) is used in the power generation unit. In order to improve the MPPT performance, a novel algorithm is proposed on the basis of the hill climbing method. This method can track the main peak of the array power curve in satellites with long duration missions under unpredicted circumstances such as a part of the array being damaged or the presence of a shadow. A lithium-ion battery is utilized in the storage unit. An algorithm for calculating the optimal rate of battery charging is proposed where the battery is charged with the maximum possible efficiency considering the situation of the satellite. The proposed system is designed and manufactured. In addition, it is compared to the conventional power supply systems in similar satellites. Results show a 12% increase in the overall efficiency of the power supply system when compared to the conventional method.

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Section: Wearinessmentioning

confidence: 99%

“…18,2015; accepted Oct. 14,2015 Recommended for publication by Associate Editor Hyung-Min Ryu. When the satellite experiences a high-energy flow of electrons, a huge potential difference is developed between the surfaces of the solar array and the satellite body.…”

Section: Damagementioning

confidence: 99%

The Design and Construction of a High Efficiency Satellite Electrical Power Supply System

Mousavi¹

2016

Journal of Power Electronics

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“…This flowchart involves the following steps: Fig. 1 Conventional Perturbation and Observe algorithm flowchart, C is the step of the perturbation [10] The maximum point is reached when 0 dp dv  . There are many varieties, from simple to complex.…”

Section: A Brief Survey Of Operation Of Different Mppt Techniquesmentioning

confidence: 99%

Survey on MPPT Techniques in Photovoltaic Solar Energy Systems

Singh¹

2015

IJAREEIE

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ABSTRACT-_Tracking of the maximum power point of a photovoltaic array is usually an essential part of PV systems. In general, PV generation systems have two major problems; the conversion efficiency of electric power generation is low, and the amount of electric power generated by solar arrays changes continuously with weather conditions. Moreover, the solar cell I-V characteristic is nonlinear and varies with irradiation and temperature. There is a unique point on the I-V or P-V curve of the solar array called MPP, at which the entire PV system operates with maximum efficiency and produces its maximum output power. The location of the MPP is not known, but can be located, either through calculation models, or by search algorithms. Therefore MPPT techniques are needed to maintain the PV array"s operating point at its MPP. In this paper, some of the most popular techniques are surveyed which are used in their work by most of the authors.

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“…One of thecentral problems is how to improve efficiency [1][2][3]. Since the PVarrays exhibit a nonlinear power-voltage (P-V) characteristic curvewhich varies with insolation and temperature, how to achieve maximum power point tracking (MPPT) is a very important technology [4,5].To date, various conventional MPPT schemes have been pro-posed including hill-climbing (HC) [6][7][8], perturb and observe(P&O) [9][10][11][12], and incremental conductance (INC) [13][14][15][16], etc.These methods have simple structures and low equipment requirement, but they cannot handle the partially shaded conditions (PSC)because P-V curve displays multiple peaks with several local peaksand a global peak (GP), which cannot be differentiated by conventional algorithms. However, PSC occur quite commonly due tosun position, clouds, buildings, trees, and so on, so it is necessaryto improve these algorithms to track the actual GP.…”

Section: Introductionmentioning

confidence: 99%

MPPT for PV Systems Based On Optimization Algorithm

Rana¹

2017

ijsrm

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Since the power-voltage characteristic curve of photovoltaic (PV) arrays has multiple peaks under partially shaded conditions, the conventional maximum power point tracking (MPPT) control methods willfail to work. However, the particle swarm optimization (PSO) algorithm is very suitable to solve themulti-extreme optimization problem. Then this paper proposes a dual-algorithm search method: first,a dormant particle swarm optimization (DPSO) algorithm is activated to search the area of global peak, and then the algorithm will be switched to conventional incremental conductance (INC) algorithm totrack the maximum output power of photovoltaic arrays. During the iteration process of DPSO, if particles happen to search repeatedly or sway in a small region, they will be turned into dormant state so asto reduce convergence time and improve efficiency. Due to the elimination of searching repeatedly, thenumber of particles can be large to strengthen optimization capability. In addition, the optimal number ofparticles for DPSO is found by analysis and simulation. Furthermore, the searching sequence of particlesis optimized to effectively reduce fluctuation of voltage and suppress output voltage spike. Finally, theexcellent performance of the proposed model is verified by simulations and experiments

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Statistical modeling of DSP-based Hill-climbing MPPT algorithms in noisy environments

Cited by 65 publications

References 6 publications

The Design and Construction of a High Efficiency Satellite Electrical Power Supply System

The Design and Construction of a High Efficiency Satellite Electrical Power Supply System

Survey on MPPT Techniques in Photovoltaic Solar Energy Systems

MPPT for PV Systems Based On Optimization Algorithm

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