Effect of Measurement Noise and Bias on Hill-Climbing MPPT Algorithms

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

doi:10.1109/taes.2010.5461654

Cited by 45 publications

(15 citation statements)

References 17 publications

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“…All HC approaches to MPPT are commonly used in commercial inverters due to their simplicity and low cost of implementation [16,18,19,22]. The operation of these techniques does not rely on knowledge of the PV module characteristics and is only limited by the appropriate choice of step size [22,26]. A large step size ensures a quick convergence, however, leads to a large oscillation and subsequent power loss occurring around the MPP.…”

Section: Hill Climbing Methodsmentioning

confidence: 99%

Maximum Power Point Tracking Methods for PV Systems

Lyden

Haque

Mahmud

2016

Advances in Solar Photovoltaic Power Plants

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Maximum power point tracking (MPPT) is an important consideration in photovoltaic (PV) systems. These systems exhibit variable nonlinear current-voltage (I-V) and power-voltage (P-V) characteristics which vary with environmental conditions. The optimum operation of a PV system occurs when the system operates at the unique maximum power point (MPP) for the given environmental conditions. Key environmental conditions include the irradiance on the cell, temperature of the cell and any shading phenomenon. Shading can occur due to objects, dust or dirt and module mismatch arising from damage or manufacturing tolerances. These shading effects introduce further nonlinearity into the I-V and P-V characteristics of the system. An extensive variety of MPPT techniques has been proposed which vary from simple estimation techniques to advanced tracking techniques. In this chapter, the criteria for assessing the performance of MPPT methods are defined followed by a complete description and discussion of both techniques designed for uniform environmental conditions and those designed for non-uniform environmental conditions.

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Section: Hill Climbing Methodsmentioning

confidence: 99%

Maximum Power Point Tracking Methods for PV Systems

Lyden

Haque

Mahmud

2016

Advances in Solar Photovoltaic Power Plants

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“…If power increases, the duty cycle changes to the previous direction and if power decreases, the duty cycle changes to the opposite direction. The most common MPPT method in space applications is the hill climbing method owing to its high precision, simple structure, direct investigation of power, high reliability, and independence from sensors such as radiation and temperature sensors [15,16]. However, this method has three major defects:…”

Section: Wearinessmentioning

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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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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“…Performances of MPPTs are, in most cases, bounded by noise generated by their subcircuits [14,15]. The noise affects performances of the MPPT based on ESC as well as based on other approaches.…”

Section: Response Of Mppt Approaches In Front Of Weather Conditions Cmentioning

confidence: 99%

MPPT for Photovoltaic Modules via Newton-Like Extremum Seeking Control

et al. 2012

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Abstract:The paper adapts the Newton-like Extremum-Seeking Control technique to extract the maximum power from photovoltaic panels. This technique uses the gradient and Hessian of the panel characteristic in order to approximate the operating point to its optimum. The paper describes in detail the gradient and Hessian estimations carried out by means of sinusoidal dithering signals. Furthermore, we compare the proposed technique with the common Extremum Seeking Control that only uses the gradient. The comparison is done by means of PSIM simulations and it shows the different transient behaviors and the faster response of the Newton-like Extremum-Seeking Control solution.

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Effect of Measurement Noise and Bias on Hill-Climbing MPPT Algorithms

Cited by 45 publications

References 17 publications

Maximum Power Point Tracking Methods for PV Systems

Maximum Power Point Tracking Methods for PV Systems

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

MPPT for Photovoltaic Modules via Newton-Like Extremum Seeking Control

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