Control and modeling of a wind energy system with a three-phase DCM boost converter and a sensorless maximum point power tracking method

PES T&D 2012 ◽  
2012 ◽  
Author(s):  
Joanne Hui ◽  
Alireza Bakhshai ◽  
Praveen K. Jain
Keyword(s):  
Wind Energy ◽  
Energy System ◽  
Boost Converter ◽  
Maximum Point ◽  
Tracking Method ◽  
Three Phase ◽  
Wind Energy System

scholarly journals Multi-Modular Converters with Automatic Interleaving for Synchronous Generator Based Wind Energy System

2021 ◽  
Author(s):  
Maira Zulqarnain
Keyword(s):  
Wind Energy ◽  
Control Algorithm ◽  
Modular Design ◽  
Synchronous Generator ◽  
Energy System ◽  
Power Converter ◽  
Communication Overhead ◽  
Three Phase ◽  
Wind Energy System ◽  
Modular Converter

Among different options available for wind energy system, this research is focused on direct driven Synchronous generator based variable speed wind turbines that are connected to power grid via modular converter units. Compared to single full size power converter, modular design has higher reliability/redundancy, better harmonic performance, lower developmental cost and higher efficiency. Better harmonic performance of modular structure is possible through interleaving which effectively reduces ripple in the output current, enabling use of smaller sized filter components. Focus of this research is to design a controller that can perform automatic interleaving of modular three-phase converters used in above cited wind energy system. Developed control algorithm will have critical decisions carried out by local controllers. With minimum communication overhead the controller will ensure interleaved operation of parallel modules under all conditions. Developed control algorithm is verified through simulation and laboratory testing. Results prove effectiveness of the designed controller.

scholarly journals Load Current Observer and Adaptive Voltage Controller for Standalone Wind Energy System with Linear and Non-linear Loads

2019 ◽  
Vol 9 (1) ◽  
pp. 5491-5499 ◽  
Keyword(s):  
Wind Energy ◽  
Pulse Width Modulation ◽  
Energy System ◽  
Load Current ◽  
Wind Energy Conversion ◽  
Voltage Controller ◽  
Three Phase ◽  
Wind Energy System ◽  
Non Linear ◽  
Unbalanced Loads

The Wind Energy Conversion System (WECS) is one of the most important renewable energy systems in the existing power network, which can be operated in either grid connected or standalone mode. In the standalone WECS, voltage and frequency variations are more due to the wind speed variations, load changes and switching surges. In this paper, space vector pulse width modulation based adaptive voltage controller with load current observer is used to control the voltage and frequency, for the standalone or isolated WECS. The isolated system is simulated using MATLAB/Simulink and the results are analysed when three-phase non-linear and linear (Resistive and Inductive) balanced and unbalanced loads are connected.

scholarly journals Multi-Modular Converters with Automatic Interleaving for Synchronous Generator Based Wind Energy System

2021 ◽  
Author(s):  
Maira Zulqarnain
Keyword(s):  
Wind Energy ◽  
Control Algorithm ◽  
Modular Design ◽  
Synchronous Generator ◽  
Energy System ◽  
Power Converter ◽  
Communication Overhead ◽  
Three Phase ◽  
Wind Energy System ◽  
Modular Converter

Among different options available for wind energy system, this research is focused on direct driven Synchronous generator based variable speed wind turbines that are connected to power grid via modular converter units. Compared to single full size power converter, modular design has higher reliability/redundancy, better harmonic performance, lower developmental cost and higher efficiency. Better harmonic performance of modular structure is possible through interleaving which effectively reduces ripple in the output current, enabling use of smaller sized filter components. Focus of this research is to design a controller that can perform automatic interleaving of modular three-phase converters used in above cited wind energy system. Developed control algorithm will have critical decisions carried out by local controllers. With minimum communication overhead the controller will ensure interleaved operation of parallel modules under all conditions. Developed control algorithm is verified through simulation and laboratory testing. Results prove effectiveness of the designed controller.

scholarly journals Super Capacitor-based Inverter control using Fuzzy Controller Wind Energy System connected to Weak Grid

2019 ◽  
Vol 9 (2) ◽  
pp. 2666-2672
Keyword(s):  
Wind Energy ◽  
Fuzzy Logic Controller ◽  
Control Method ◽  
Fuzzy Controller ◽  
Energy System ◽  
Boost Converter ◽  
Control Technique ◽  
Super Capacitor ◽  
Weak Grid ◽  
Wind Energy System

In this article, a fuzzy based inverter control is applied to a weak grid connected wind energy system. Whenever Wind Energy system connected to battery storage or super capacitor, which is nothing but a Hybrid Energy System (HES). These Wind HES are sometimes subjected to transients and gives sluggish dynamic output as the wind speed varies and moreover the generator inertia doesn't allow quick rotation when wind is blown to turbine. So, these transients and dynamic results are modified using the fuzzy based inverter control technique. This controlling technique brings a Super-Capacitor (SC) quick charging/discharging features for buck-boost converter. The transient behavior and the frequency response of the system is improved with buck–boost converter that conducts bi-directionally. Fuzzy Logic Controller (FLC) used in the control technique produces the controlled reference output required for the inverter operation. Fuzzy based inverter control scheme designed and analyzed under the weak grid condition. The new control method used for weak grid/load like marine electrical system, this wind energy system decreases the fossil fuels use and the entire proposing work is to be analyzed in MATLAB Simulink environment. The outcomes are presented and compared to the traditional control technique to justify the reduced the oscillations and improvement in the quality of power.

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