Maximum power extraction in solar renewable power system - a bypass diode scanning approach

2018 ◽  
Vol 70 ◽  
pp. 122-136 ◽  
Author(s):  
D. Prince Winston ◽  
B. Praveen Kumar ◽  
S. Cynthia Christabel ◽  
Ali J. Chamkha ◽  
Ravishankar Sathyamurthy
Keyword(s):  
Power System ◽  
Maximum Power ◽  
Power Extraction ◽  
Renewable Power ◽  
System A ◽  
Bypass Diode

Multiagent structures in hybrid renewable power system: A review

2015 ◽  
Vol 7 (6) ◽  
pp. 063101 ◽  
Author(s):  
A. Ranjeeta Khare ◽  
B. Yogendra Kumar
Keyword(s):  
Power System ◽  
Renewable Power ◽  
System A

scholarly journals Synchronous Buck Converter for Improved Maximum Power Extraction on Small Stand-Alone Wind Power System using Modified perturb and observe (P&O)

2020 ◽  
Vol 331 ◽  
pp. 03004
Author(s):  
Irwan Mahmudi ◽  
Ratih Mar’atus Sholihah ◽  
Baso Muchlis ◽  
Sundun Sada Maripi ◽  
Lukman
Keyword(s):  
Power System ◽  
Wind Power ◽  
Buck Converter ◽  
Maximum Power ◽  
Convergence Time ◽  
Energy Output ◽  
Power Extraction ◽  
Stable Conditions ◽  
Perturb And Observe ◽  
Wind Power System

To increase the extraction power of a wind power system, the system must work at peak power. This paper presents maximum power extraction and control systems using a modified perturb and observe algorithm (MP&O) to achieve high efficiency maximum power extraction of wind turbines that connected to permanent magnet synchronous generators (PMSG). To get maximum power from PMSG, MP&O controls the duty cycle of synchronous buck based on the output power of the 12 pulses rectifier. The simulation results show that MP&O can work optimally at every change of wind speed. MP&O was also tested and compared with simple P&O in terms of ripples under stable conditions, response speed and ability to obtain maximum energy output. The average efficiency and convergence time achieved by MP&O are 99. 24% and 0. 71s.

scholarly journals Improvement in Efficiency of Solar Photovoltaic Power System

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2104-2106
Keyword(s):  
Power System ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Maximum Power Point ◽  
System A ◽  
Photovoltaic Power ◽  
Incremental Conductance ◽  
Power Point ◽  
Sun Light

The present paper relates to solar photovoltaic power system. In this paper the work is done on improving the efficiency of solar photovoltaic power system. In a Photovoltaic system the light coming from sun is directly converted into solar energy. This system as a source of energy becomes very popular nowadays due to some existing benefits like pollution free production of energy and free availability of sun light which is inexhaustible in nature. The main drawback is only output power which is still low, there is a requirement to improve the system. A technique called MPPT is used to track the maximum sun light coming at a particular point to produce maximum power. In this paper tracker works with an incremental conductance algorithm. In the paper simulations are taken to identify the maximum power point by MPPT.

scholarly journals Deliberations about three-phase PLL technologies applied to a grid control of the renewable power system

2015 ◽  
Vol 63 (1) ◽  
pp. 261-267 ◽  
Author(s):  
L. Liu ◽  
C. Liu
Keyword(s):  
Power System ◽  
Voltage Drop ◽  
Phase Voltage ◽  
Two Phase ◽  
Voltage Distortion ◽  
Renewable Power ◽  
Grid Connection ◽  
System A ◽  
Three Phase ◽  
Frequency Phase

Abstract An efficient phase locked loop (PLL) method is very important to improve the grid-connected efficiency and the locked speed of frequency, phase, and voltage. However, most of literatures only introduce one PLL or one modified PLL method. There are many grid faults due to the grid connection to the renewable power generating system. A comparison and analysis is very important to select the most effective PLL technology for the grid-connected control of the renewable power system. Three PLL technologies are compared at different grid faults, such as single phase voltage drop, two phase voltage drop, frequency deviation, and voltage distortion. Simulation results indicated that different PLL methods have different locked performances at different grid faults.

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