High-efficiency module-integrated photovoltaic power conditioning system

Kwon, Jung-Min; Kwon, Bong-Hwan; Nam, Kwanghee

doi:10.1049/iet-pel.2008.0023

Cited by 58 publications

(35 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tables 3 and 4 compared the PV-battery power source implemented using the proposed DC/PWM charger and decomposed PV panel with the usual PV-battery power sources implemented using the existing conventional DC/DC converters such as integrated circuit TL1510. As another comparison, the experimental results related to the maximum efficiency and converted power of the proposed DC/PWM charger and all the available DC/DC converter topologies used in grid-connected PV systems [45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60] are reported in Table 5. Comparing the experimental data explicitly verifies that the proposed DC/PWM charger has even higher efficiency compared to all the other DC/DC converters, and furthermore, there is no limitation for the maximum power converted by the proposed DC/PWM charger because it does not use inductors and capacitors that limit the converted power.…”

Section: Resultsmentioning

confidence: 99%

Two novel techniques for increasing energy efficiency of photovoltaic-battery systems

Fathabadi

2015

Energy Conversion and Management

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Two novel techniques for increasing energy efficiency of photovoltaic-battery systems

Fathabadi

2015

Energy Conversion and Management

View full text Add to dashboard Cite

“…This has resulted in greenhouse effects and abnormal global climate changes. In an effort to solve this energy shortage and to reduce pollution, sustainable power sources, namely photovoltaic, wind-power, geothermal, hydraulic, hydro, biomass, etc., are being gradually developed [1]- [5]. In wind energy generating systems, the output-voltage and frequency of the generator are varied due to wind speed.…”

Section: Introductionmentioning

confidence: 99%

A Three-Phase AC-DC High Step-up Converter for Microscale Wind-power Generation Systems

Yang¹,

Lin²,

Chang³

2016

Journal of Power Electronics

View full text Add to dashboard Cite

In this paper, a three-phase AC-DC high step-up converter is developed for application to microscale wind-power generation systems. Such an AC-DC boost converter prossessess the property of the single-switch high step-up DC-DC structure. For power factor correction, the advanced half-stage converter is operated under the discontinuous conduction mode (DCM). Simulatanously, to achieve a high step-up voltage gain, the back half-stage functions in the continuous conduction mode (CCM). A high voltage gain can be obtained by use of an output-capacitor mass and a coupled inductor. Compared to the output voltage, the voltage stress is decreased on the switch. To lessen the conducting losses, a low rated voltage and small conductive resistance MOSFETs are adopted. In addition, the coupled inductor retrieves the leakage-inductor energy. The operation principle and steady-state behavior are analyzed, and a prototype hardware circuit is realized to verify the performance of the proposed converter.

show abstract

“…Although these techniques solves the problem of PV current variation, they requires more advanced circuitry and involves complicated control schemes for the DC-DC converter which would increase the cost of the unit and reduces the power efficiency. In [19], [20] a DC-DC converter control method that supplies only a DC component I d to avoid the PV current double line frequency variations is presented with the incremental conductance MPPT control. These techniques have few drawbacks, a time varying parameter D var has to be generated by the controller making the implementation of the control logic highly complex.…”

Section: Introductionmentioning

confidence: 99%

An efficient robust MPPT control for grid-connected photovoltaic systems with reduced DC link capacitance

Kotti

Shireen

2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

This paper presents a novel robust maximum power point tracking (MPPT) control for a grid connected photovoltaic (PV) system with reduced DC link capacitance. The voltage source inverter (VSI) integrating the PV system to the grid introduces a double line frequency ripple or current variation into the PV system. This ripple or current variation results in oscillation of operating point around the MPP, introducing an extra power loss from the extracted panel power. In order to reduce this ripple content, large electrolytic capacitors are used as power decoupling units in grid connected PV systems. However, these electrolytic capacitors are bulky and less reliable affecting the reliability of the entire PV system. These electrolytic capacitors can be replaced by highly reliable thin film capacitors, if the energy storage requirement could be reduced. So, a novel DC-DC converter control is proposed to reduce the PV ripple variation along with MPPT control under reduced DC link capacitance. The method proposed is implemented and verified in MATLAB/Simulink software under varying sun conditions. The results obtained from the proposed control clearly show the increase in power extracted from the PV system under reduced DC link capacitance making the system more reliable and economical.

show abstract

High-efficiency module-integrated photovoltaic power conditioning system

Cited by 58 publications

References 5 publications

Two novel techniques for increasing energy efficiency of photovoltaic-battery systems

Two novel techniques for increasing energy efficiency of photovoltaic-battery systems

A Three-Phase AC-DC High Step-up Converter for Microscale Wind-power Generation Systems

An efficient robust MPPT control for grid-connected photovoltaic systems with reduced DC link capacitance

Contact Info

Product

Resources

About