A new conversion and control system for a small off - grid wind turbine

Muntean, Nicolae; Cornea, Octavian; Petrila, Diana

doi:10.1109/optim.2010.5510367

Cited by 15 publications

(4 citation statements)

References 9 publications

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“…The following relations, well known in the literature, are used in practice for the wind turbine model [14][15][16][17][18].…”

Section: Wind Turbine Modelmentioning

confidence: 99%

“…The simulation parameters of the system are rated power P n = 5.5 kW; rotation speed ω r = 12.4 rad/s; the moment of inertia of the wind turbine J t = 140 kg•m 2 ; the moment of inertia of the electric generator J g = 1.05 kg•m 2 ; blade swept area A = 19.6 m 2 ; turbine blade radius R = 2.5 m; turbine constants: λ 0 = 3, a = 0.0986, b = 0.0113, C m0 = 0.0222; specific air density ρ = 1.225 kg/m 3 . These values are used in the current research performed in the university on an emulator installation of the wind power plant in Seusa, Romania [17,18].…”

Section: Wind Turbine Modelmentioning

confidence: 99%

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A Comparative Analysis of Some Methods for Wind Turbine Maximum Power Point Tracking

Voloşencu

2021

Mathematics

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The study in the paper is placed in the broad context of research for increasing the efficiency of capturing and converting wind energy. The purpose of the study is to analyze some mathematical methods for maximum power point tracking in wind turbines. The mathematical methods studied are on–off control, fuzzy control, and neural predictive control. The rules developed for maximum power point tracking are presented. The related control structures and their design methods are presented. The behaviors of the control systems and their energy efficiency are analyzed. Maximum power point tracking ensures a significant increase in the energy generated compared to the unfavorable case of operation at a small and constant load torque. The differences in energy efficiency between the methods of maximum power point tracking studied are small.

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“…The following relations, well known in the literature, are used in practice for the wind turbine model [14][15][16][17][18].…”

Section: Wind Turbine Modelmentioning

confidence: 99%

Section: Wind Turbine Modelmentioning

confidence: 99%

A Comparative Analysis of Some Methods for Wind Turbine Maximum Power Point Tracking

Voloşencu

2021

Mathematics

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“…The use of a step-down SIHDC in a WECS was previously reported [15], but an in-depth investigation of the converter integration into the system has not been published in the literature. Nevertheless, this investigation is necessary because the operation can become instable if the stability is not correctly evaluated by taking into consideration the parameters of the electric generator.…”

Section: Introductionmentioning

confidence: 99%

Step-Down Switched-Inductor Hybrid DC-DC Converter for Small Power Wind Energy Conversion Systems With Hybrid Storage

et al. 2020

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This work is focused on a step-down switched-inductor hybrid dc-dc converter (SIHDC) integrated in a small power wind energy conversion system (WECS). The converter has two roles, to maintain the wind turbine at the maximum power point by controlling the electric generator loading, and to charge a high power density supercapacitor, which is part of a hybrid storage unit that also contains rechargeable batteries. The paper points out the steady-state analysis of the converter in continuous and discontinuous current modes, specific for this application. The stability investigation is presented in detail, including the influence of the electrical generator. The parameterized small-signal transfer function of the control variable derived in this paper can be used to quickly obtain the information needed to evaluate the stability of any similar WECS. A current controller was designed to achieve a stable operation in continuous current mode, and afterwards the stability was checked for discontinuous current mode. A 5kW step-down SIHDC prototype was built and extensively tested, both in laboratory, by using a wind turbine emulator, and in a small power (5kW) WECS industrial platform. Experimental results obtained under real operating conditions confirm the theoretical analysis and laboratory tests, showing that SIHDC converter is a valid solution for low power wind energy conversion systems.INDEX TERMS Hybrid dc-dc converters, renewable energy, stability analysis, step-down dc-dc converters, switched-inductor, wind energy conversion system, wind turbine.

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“…Wind power is one of the most viable renewable energy resources and has proven to be a potential source for generation of electricity with minimal environmental impact [1][2][3][4]. In addition to the on-grid power, off-grid permanent magnet wind generator will be developed and applied as a way of small power [5][6][7].It is very rich for the research of wind permanent magnet generator, but it is still rare for research in performance test of wind permanent magnet generator [8][9][10][11]. The original experimental platform we had can display the real-time input and output parameters of external rotor permanent magnet generator, but if we wanted to see the efficiency of the outer rotor permanent magnet generator under each fixed input parameters, we will need to collect a lot of data and do the tedious work that people deal with the data [12].…”

Section: Introductionmentioning

confidence: 99%

Software System Development of the Outer Rotor Permanent Magnet Generator Experimental Platform

Zhang

Wang

Yang

2014

AMR

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In order to show the performance of the outer rotor permanent magnet generator timely and accurately under different input parameters, we coupled two software of outer rotor permanent magnet generator experimental platform based on LabVIEW (Laboratory Virtual Instrumentation Engineering Workbench)-Virtual torque and Three-phase electric parameter tester. Firstly, we picked up the DLL (Dynamic Link Library) of virtual torque and generated an excel file through VB (Visual Basic), through LabVIEW we picked up the excel form to acquire the system input parameters (torque and speed); Secondly, we collected the real-time parameters (voltage and current) of three-phase power meter by means of the LabVIEW serial communication; Lastly, we could see the efficiency of the outer rotor permanent magnet generator on the LabVIEW front panel. The experiment show that we can couple the input and output parameters of the system based on LabVIEW, and we can see the efficiency of the outer rotor permanent magnet generator under each fixed input parameters. This experiment avoid the tedious work that people deal with data, optimize the software system of outer rotor permanent magnet generator experimental platform, and provide the technical support for optimal design of permanent magnet generator.

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A new conversion and control system for a small off - grid wind turbine

Cited by 15 publications

References 9 publications

A Comparative Analysis of Some Methods for Wind Turbine Maximum Power Point Tracking

A Comparative Analysis of Some Methods for Wind Turbine Maximum Power Point Tracking

Step-Down Switched-Inductor Hybrid DC-DC Converter for Small Power Wind Energy Conversion Systems With Hybrid Storage

Software System Development of the Outer Rotor Permanent Magnet Generator Experimental Platform

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