NDLI: Enhancing the performance of DFIG variable speed wind turbine using a parallel integrated capacitor and modified modulated braking resistor

Content Provider	IET Digital Library
Author	Okedu, Kenneth E.
Abstract	Wind energy has a dilute, unpredicted nature; hence, it creates a challenge for effective and well managed operation of wind turbines connected to the grid network. There is a mandatory requirement for wind turbines to fulfil standard grid codes for stability control. In this study, a new scheme consisting of a parallel connected capacitor with the DC-link scheme of the doubly fed induction generator (DFIG) wind turbine is proposed. Scenarios of integrating different sizes of the parallel capacitor at the grid side converter of the DFIG were investigated, in order to know the optimum size for the better transient performance of the wind generator. For effective comparative study, the same constant wind speed was used for the considered scenarios in the investigation of the wind generator transient performance. The presented results in power system computer design and electromagnetic transient including DC show that the proposed parallel capacitor based DC-link scheme power converter improves the grid voltage response and the variables of the wind generator during a severe grid fault condition. Furthermore, a proposed modulated series dynamic braking resistor (MSDBR) was used to improve the overall performance of the capacitor scheme. The results of the proposed MSDBR were compared to the traditional scheme.
Starting Page	3378
Ending Page	3387
Page Count	10
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 15, Aug (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0206
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-06-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Asynchronous Generator Asynchronous Machine Brakes Capacitor Capacitor Scheme Constant Wind Speed Control of Electric Power System DC-link Scheme Power Converter DFIG Variable Speed Wind Turbine Dilute Nature Doubly Fed Induction Generator Wind Turbine Effective Comparative Study Effective Managed Operation Electromagnetic Transient Including DC Show Grid Network Grid Side Converter Grid Voltage Response Machine Control Modulated Braking Resistor Modulated Series Dynamic Braking Resistor Parallel Capacitor Parallel Connected Capacitor Parallel Integrated Capacitor Power Converter Power Generation Control Power Generation Fault Power Grid Power Supplies to Apparatus Resistor Severe Grid Fault Condition Standard Grid Code Unpredicted Nature Voltage Control Well Managed Operation Wind Energy Wind Generator Transient Performance Wind Power Plant Wind Turbine
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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