Operation and closed-loop control of wind-driven stand-alone doubly fed induction generators using a single inverter-battery system

Vijayakumar, K.; Kumaresan, N.; Gounden, N. Ammasai

doi:10.1049/iet-epa.2011.0204

Cited by 46 publications

(47 citation statements)

References 15 publications

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“…The WES with WRIG discussed in Baggu et al and Javan et al involves 2 converters leading to increased cost. A WES feeding AC loads with single inverter discussed in Vijayakumar et al aims mainly at power transfer, and the battery employed suffers from limitation on charging. In this paper, a WRIG‐based WES is connected to a stand‐alone DCM through a single converter.…”

Section: Introductionmentioning

confidence: 99%

Sensor fault control scheme for a variable speed wind energy system in a stand-alone DC micro grid

Sowmmiya

Uma

Uandai

2018

Int Trans Electr Energ Syst

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This paper describes sensor fault control (SFC) scheme for a wound rotor induction generator (WRIG)-based wind energy system (WES) connected to a standalone DC micro grid (DCM). The DCM provides excitation for WRIG through a rotor side converter (RSC). The stator voltage and frequency are regulated using PI controllers. The generated power is supplied to loads, and excess power is supplied to DCM by PWM rectification operation of RSC. During stall mode, DCM supplies load through RSC by PWM inversion operation. To execute a smooth changeover of modes, supervisory control algorithm is employed.The control scheme involves sensors which may not be ideal and if fault occurs might lead to system collapse. To compensate the electrical sensor faults, a fault detection and compensation (FDC) scheme based on adaptive neuro-fuzzy inference system (ANFIS) is employed. For compensating mechanical sensor faults, an electrical sensor is employed. The system is experimentally tested to show the effectiveness of SFC scheme.

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Section: Introductionmentioning

confidence: 99%

Sensor fault control scheme for a variable speed wind energy system in a stand-alone DC micro grid

Sowmmiya

Uma

Uandai

2018

Int Trans Electr Energ Syst

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“…Recently, the single converter on the rotor side topology of DFIG catches the attraction of the researchers, the only requirement is the battery at dc terminal of the converter. The battery bank is used as a continuous and reliable source in standalone system for providing the required magnetization to the machine as well as removes the fluctuations from the output power [9][10]. Furthermore, a suitable control technique is required that should takes care of the variations in stator voltage and frequency, and fluctuations occurring during the change in load and wind speed.…”

Section: Introductionmentioning

confidence: 99%

Analysis and modeling of standalone wind driven doubly fed induction generator

Bhardwaj¹,

Vijayakumar²

2018

IJET

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This paper briefly enlightens on the analysis and modeling aspects of the standalone operation of doubly fed induction generator (DFIG) based wind energy conversion system (WECS). The DFIG in WECS is controlled via a single converter on the rotor terminals. The battery at the converter terminal fulfills the active/reactive power demand of the load. Whereas, the incorporation of the speed estimation technique makes the WECS free from the complexities associated with the speed sensors, thus provide a robust and reliable operation. The control technique used is simple and based on controlling the stator voltage and frequency by their comparison with a reference voltage and frequency using a simple PI controller. The supportive results for the analysis and modelling has been presented for a 7.5 kW wound rotor induction generator in MATLAB/Simulink environment.

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“…Therefore, the proper operation in stand-alone mode is critical. To satisfy the time varying power demand and maintain balance of power, at least an energy storage unit is required to compensate for the power deficit and absorb the excess power [10,11,22]. In some remote areas, a hybrid system might be required to complement wind power with other sources such as photovoltaic, small hydro and diesel generator [15,23e26].…”

Section: Introductionmentioning

confidence: 99%

Terminal voltage build-up and control of a DFIG based stand-alone wind energy conversion system

2016

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a b s t r a c tThe paper presents the voltage build-up process and the terminal voltage control of a doubly-fed induction generator (DFIG) driven by a pitch controlled wind turbine for the supply of autonomous system without any auxiliary source. A control strategy for the complete system including voltage build-up phase is developed with a view to provide as well as possible the required power for load. Indirect stator flux-oriented vector control is proposed to keep the stator voltage constant by means of a back-toback converter connected to the rotor side, while the management system is supported by the pitch angle and the load shedding controllers. A novel scheme for voltage build-up is presented, which requires no additional hardware support, and physical interpretation of how self-excitation can occur from residual magnetism in the machine core is examined. A reliable start-up process is accomplished by using an appropriate voltage reference ramp which enables minimizing energy loss during the starting. The proposed system is modeled and simulated using Matlab/Simulink software program to examine the dynamic characteristics of the system with proposed control strategy. Dynamic simulation results for different transient conditions demonstrate the effectiveness of the proposed control strategy.

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Operation and closed-loop control of wind-driven stand-alone doubly fed induction generators using a single inverter-battery system

Cited by 46 publications

References 15 publications

Sensor fault control scheme for a variable speed wind energy system in a stand-alone DC micro grid

Sensor fault control scheme for a variable speed wind energy system in a stand-alone DC micro grid

Analysis and modeling of standalone wind driven doubly fed induction generator

Terminal voltage build-up and control of a DFIG based stand-alone wind energy conversion system

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