scholarly journals Review of Control Techniques for Wind Energy Systems

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6666
Author(s):  
Hooman Ghaffarzadeh ◽  
Ali Mehrizi-Sani
Keyword(s):  
Control Strategies ◽  
Power Grid ◽  
Wind Farms ◽  
Renewable Energy Resources ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Fault Ride Through ◽  
Challenges And Opportunities ◽  
Power Point ◽  
Wind Energy Systems

In recent years, penetration of renewable energy resources into the power grid has increased significantly. Wind, as a renewable, clean, and abundantly available source of energy, has an important share in the energy mix. However, increasing the penetration of wind power in the power grid can adversely affect the power quality and introduce new operational challenges. This paper discusses issues related to the integration of wind farms in the power system, such as maximum power point tracking, fault ride-through capabilities, interarea and subsynchronous oscillations, and voltage flicker, and provides a review of the existing control strategies to address these issues in Types I, II, III, and IV wind turbines. This paper also identifies challenges and opportunities ahead.

A Review on Design and Development of high Reliable Hybrid Energy Systems with Droop Control Techniques

2016 ◽  
Vol 7 (3) ◽  
pp. 974
Author(s):  
G. Srinivasa Rao ◽  
K. Harinadha Reddy
Keyword(s):  
Energy Systems ◽  
Energy System ◽  
Power Sharing ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Droop Characteristic ◽  
Power Point ◽  
Wind Energy Systems

<p>Hybrid Energy system is a combination of two or more different types of energy resources. Now a day this hybrid energy system plays key role in various remote area power applications. Hybrid energy system is more reliable than single energy system. This paper deals with high reliable hybrid energy system with solar, wind and micro hydro resources. The proposed hybrid system cable of multi mode operation and high reliable due to non communicated based controllers (Droop Characteristic Control) are used for optimal power sharing.  size of battery can be reduced because hydro used as back up source and Maximum power point Tracking also applied to solar and wind energy systems.</p>

scholarly journals Limited Power Point Tracking for a Small-Scale Wind Turbine Intended to Be Integrated in a DC Microgrid

2020 ◽  
Vol 10 (22) ◽  
pp. 8030
Author(s):  
Jamila Aourir ◽  
Fabrice Locment
Keyword(s):  
Wind Turbine ◽  
Control Strategies ◽  
New Technology ◽  
Deep Understanding ◽  
Small Scale ◽  
Step Size ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Limited Power ◽  
Power Point

Limited power point tracking (LPPT) is emerging as a new technology for power management controllers for small-scale wind turbines (SSWTs) thanks to its advantages in terms of operation flexibility, economy and system security. LPPT operates in such a way that power requested by the user can be extracted from the wind turbine while respecting constraints. However, operating in LPPT mode still requires a deep understanding to obtain a compromise between minimizing power oscillations and transient response. For that, three LPPT power control strategies for an SSWT intended to be integrated in a direct current (DC) urban microgrid are investigated. These methods concern perturb and observe (P&O) with fixed step size, P&O based on Newton’s method and P&O based on the fuzzy logic (FL) technique. The experimental results highlight that all methods function correctly and reach the limited power point (LPP). The FL method improves dynamic performances with more steady oscillations around LPP compared to fixed step size and Newton’s methods. The sudden variation of wind velocity and power lead us to conclude that the FL method ensures a good balance between reducing oscillation of wind turbine (WT) output power around the operating point and convergence of rising time toward LPP.

Photovoltaic Grid-Connected Generation Gnalog Device Gesign

2014 ◽  
Vol 577 ◽  
pp. 494-497
Author(s):  
Xue Feng Bai ◽  
Shi Qiu ◽  
Pei Li
Keyword(s):  
Single Phase ◽  
Solar Photovoltaic ◽  
Renewable Energy Resources ◽  
Pv System ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Control Scheme ◽  
New Energy ◽  
Power Point

With the reduction of non-renewable energy resources, energy conservation and development of new energy has become an important strategic plan around the world. Photovoltaic technology is also developing rapidly with more and more applications of solar energy. The project designed a set of solar photovoltaic grid-connected power generation analog devices. In this paper, the maximum power point tracking, DC-AC inverter technology, SPWM control technology related to single-phase grid-connected PV system have been studied, a comprehensive theoretical has been analyzed and to develop the relevant control scheme and design a set of simulator based on MSP430F169 microcontroller. The experimental results have met the target and achieved the desired effect.

scholarly journals Immunity of photovoltaic installation on electromagnetic surge disturbances

2019 ◽  
Vol 28 ◽  
pp. 01034
Author(s):  
Dorota Bugała ◽  
Artur Bugała ◽  
Damian Janczak
Keyword(s):  
Tracking System ◽  
Power Grid ◽  
Lightning Discharge ◽  
Electrical Power ◽  
Photovoltaic System ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point ◽  
Grid Side

The work analyzes the correctness of the functioning of the photovoltaic system with a rated electrical power of 3500 W, consisting of 14 photovoltaic modules and a power electronic converter in the form of a single phase voltage inverter equipped with a maximum power point tracking system, disturbed by voltage stroke. The voltage surge with the parameters 1.2/50 µs, simulating a lightning discharge, was introduced into the system from the power grid side. For the purpose of computer simulation performed in Matlab/Simulink, the recommendations included in the PN-EN 61000-4-5 standard "Immunity of the surge disturbances" were used. Significant changes in the voltage and current on the AC side, related to the system of energy return to the power grid were shown.

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