Dynamic Voltage Restorer based on a New Step-up Switched Capacitor Multilevel Inverter for Fault Ride-Through of Wind Generators

2021 ◽  
Author(s):  
Tohid Rahimi ◽  
Hassan Hadiizadeh ◽  
Hossein Khoun Jahan ◽  
Joseph Pou ◽  
Frede Blaabjerg
Keyword(s):  
Multilevel Inverter ◽  
Switched Capacitor ◽  
Dynamic Voltage Restorer ◽  
Wind Generators ◽  
Fault Ride Through ◽  
Voltage Restorer ◽  
Dynamic Voltage

scholarly journals Power Quality Improvement Using Dynamic Voltage Restorer on Grid-Connected Wind Energy System

2021 ◽  
Vol 23 (5) ◽  
pp. 401-407
Author(s):  
M. Praful Yadav ◽  
P. Sujatha ◽  
P.B. Kumar
Keyword(s):  
Wind Farm ◽  
Renewable Energy Sources ◽  
Wind Farms ◽  
Constant Speed ◽  
Wind System ◽  
Dynamic Voltage Restorer ◽  
Wind Generators ◽  
Fault Ride Through ◽  
Voltage Restorer ◽  
Dynamic Voltage

Reduction of fossil fuels and increasing technology made importance of wind generation as renewable energy sources. With increasing number of wind farms fed to grid increases grid fault issues due to various wind systems disconnected from grid during grid faults. To get better grid operation, wind farms are probable to be carried during disturbance related to grid faults extensively known as fault ride through capability. In proposed system a fault ride through method in wind farm management system connected to grid is investigated in term of critical clearing time. This paper examines the use of dynamic voltage restorer on the enhancement of fixed-speed wind generator systems. The controller capability performance, drive performance, and cost factor are considered. Simulation is performed using MATLAB Simulink for constant speed wind generators with closed-loop controller-based DVR are tested. The constant speed drive called synchronous generator-based wind system feed to an infinite bus system. Simulation results show the wind system with DVR has better fault ride-through capability other compensated voltages and is more efficient in minimizing voltage fluctuations called sag/swell and wind generator’s speed. Additionally, DVR aids wind generators to maintain voltage sag/swell with the grid limits requirements with economical as compared to other voltage compensating systems.

scholarly journals Improved Fault Ride Through Capability in DFIG Based Wind Turbines Using Dynamic Voltage Restorer With Combined Feed-Forward and Feed-Back Control

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 20494-20503 ◽  
Author(s):  
Rini Ann Jerin Amalorpavaraj ◽  
Palanisamy Kaliannan ◽  
Sanjeevikumar Padmanaban ◽  
Umashankar Subramaniam ◽  
Vigna K. Ramachandaramurthy
Keyword(s):  
Wind Turbines ◽  
Dynamic Voltage Restorer ◽  
Feed Forward ◽  
Fault Ride Through ◽  
Voltage Restorer ◽  
Dynamic Voltage ◽  
Combined Feed

scholarly journals Adoption of Multilevel Inverter based Dynamic Voltage Restorer for Power Quality Improvement with Adjustable DC-Link

2020 ◽  
Vol 184 ◽  
pp. 01055
Author(s):  
Kummari Geethika ◽  
Vinay Kumar Awaar ◽  
Praveen Jugge
Keyword(s):  
Power Distribution ◽  
Electrical Power ◽  
Current Source ◽  
Multilevel Inverter ◽  
Voltage Sag ◽  
Voltage Profile ◽  
Frequency Method ◽  
Dynamic Voltage Restorer ◽  
Voltage Restorer ◽  
Dynamic Voltage

Dynamic Voltage Restorer (DVR) is a method of overcoming voltage sag and swell in electrical power distribution. To boost up voltage levels on load side on power disturbances DVR can be used so as the equipment connected will have good voltage profile In this Pulse Width Modulation inverter is in solid-state electronic switching device were employed along with Integrated Gate Bipolar Transistor by the DVR, the alternating current voltage is controllable at real and reactive powers which are made independently. The MLI; is organized as the cascaded H-bridge inverter units. The function of Multilevel Inverter; is to arrange the voltages from a significant direct current source. Here in the DVR, there is no need for external output filters. In the planned DVR, a dc-dc converter is combined with an MLI. By considering the voltage sag magnitude of a dc-dc converter can regulate the dc-link voltage. Hence the output voltage of the multilevel inverter; always has a last number of levels. Instead of using the PWM based technique, the fundamental frequency method can be used in the multilevel inverter. The proposed DVR operation range of mathematical analysis is specified in detail. The simulation results are prepared by using Simulink/MATLAB.

Improved fault ride through capability of DFIG-wind turbines using customized dynamic voltage restorer

2018 ◽  
Vol 39 ◽  
pp. 114-125 ◽  
Author(s):  
Sitharthan R. ◽  
Sundarabalan C.K. ◽  
Devabalaji K.R. ◽  
Sathees Kumar Nataraj ◽  
Karthikeyan M.
Keyword(s):  
Wind Turbines ◽  
Dynamic Voltage Restorer ◽  
Fault Ride Through ◽  
Voltage Restorer ◽  
Dynamic Voltage

scholarly journals Providing Fault Ride-Through Capability of Turbo-Expander in a Thermal Power Plant

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4113
Author(s):  
Mohammadali Norouzi ◽  
Matti Lehtonen
Keyword(s):  
Power Plant ◽  
Thermal Power ◽  
Renewable Resource ◽  
Static Synchronous Compensator ◽  
Dynamic Voltage Restorer ◽  
Fault Ride Through ◽  
Voltage Restorer ◽  
Turbo Expander ◽  
Dynamic Voltage ◽  
Network Operation

This paper aims to make possible the operation of a turbo-expander (TE) as a renewable resource at the Neka power plant in fault condition in the auxiliary service system (ASS), which is considered one of the fundamental problems in network operation. In this paper, the effect of the failure on the performance of the TE is analyzed whilst the performance of a dynamic voltage restorer (DVR) and static synchronous compensator (STATCOM) to compensate the fault in the ASS network is investigated. To improve the performance of DVR, a novel topology is developed; additionally, the compensatory strategies are assessed, simulated, and validated. In order to optimize the performance of the compensators, their possible presence situations on the ASS in various scenarios under the conditions of severe disturbance, synchronization of fault conditions, and starting of TE are tested. The results of PSCAD/EMTDC software simulation demonstrate that by applying the improved topology and selected compensation strategy of DVR, severe voltage sags are compensated, and the fault ride-through (FRT) capability for the TE is provided. Eventually, it is evident that the proposed solution is technically and economically feasible and the TE can supply the total ASS power consumption in all disturbances.

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