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Proceedings ArticleDOI

Experimental evaluation of capacitance value; to self-excite the induction motor operating as generator in wind energy conversion

23 Mar 2011-pp 133-140
TL;DR: In this paper, a method to calculate the capacitance value of a 3-O cage induction motor working as a generator in the self-excited mode of operation is presented.
Abstract: This paper explains a method to calculate the capacitance value of a 3-O cage induction motor working as a generator in the self-excited mode of operation. The synchronous impedance test method has been reviewed. The capacitance value is determined from the manufacturer data. The effect of voltage variation with different capacitances has been evaluated at constant speed. Performance of self-excited asynchronous generator (SEASG) with the capacitance (calculated value) is evaluated experimentally. Simulation study of the SEASG is done using power system tool box in Mat Lab/Simulink.
Citations
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01 Jan 1982
TL;DR: An analytical technique using the `Newton-Raphson' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load.
Abstract: An analytical technique using the `Newton-Raphson' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load. The technique is shown to be very efficient in analysing such systems under steady state. Computed results are compared with the experimentally obtained values on a laboratory machine, and a reasonable correlation has been observed. Effects of various system parameters on the steady-state performance have been studied, and the results presented provide guidelines for optimum design of such systems.

368 citations

Proceedings ArticleDOI
01 Sep 2014
TL;DR: In this paper, the performance of isolated 3-phase self-excited induction generator (SEIG) in micro-hydro power plant using water pump as load is investigated.
Abstract: This paper presents the performance of isolated 3-phase self-excited induction generator (SEIG) in micro-hydro power plant using water pump as load. The daily electrical load profile in remote mountainous region of Himalayas shows vast difference in minimum and maximum load on the generator operated in isolated mode. Induction generators are most suitable types of generators for renewable energy conversion systems due to their advantages over conventional generators. The load on these generators has to be kept constant to maintain the voltage and frequency under permissible limits. Therefore under off-load conditions, the extra energy available can be utilized for other purposes such as operating water pump and other need based applications rather than wasting the energy in resistive dump load. In this paper, the potential benefits of using water pump as load under light/off-load conditions have been explored. The performance characteristics of isolated 3-φ SEIG are obtained using MATLAB-Simulink facility and the simulation model is based on the electrical loading pattern in mountainous terrain of Himalayas.

8 citations


Cites methods from "Experimental evaluation of capacita..."

  • ...The whole process is simulated [2]-[4] using MATLAB/Simulink facility emulating the prevalent renewable inputs and varying loading conditions in remote mountainous regions....

    [...]

Proceedings ArticleDOI
01 Oct 2015
TL;DR: In this article, a power flow model of induction generator for grid connected system is presented, in order to determine the power of induction generators that flow to the electrical distribution system, and the efficiency of the generators is discussed.
Abstract: This paper presents a power flow model of induction generator for grid connected system. In order to determine the power of induction generator that flow to the electrical distribution system. Parameters of a three-phase squirrel cage induction motor in which obtain from stator, rotor and iron-core are used in characteristic analyzing. There parameters are also employed to establish a mathematical model of the induction generator. The simulation results from the proposed model are compared to the results of the implemented testing set in the laboratory. Then the efficiency of the generators is discussed. From the experimental results, it is found that the model simulation provided power flow results tend to be the same as the testing set with efficiency of 80%. Consequently, it can conclude that the proposed model can be use for induction generator sizing selection.

6 citations

Journal ArticleDOI
01 Jan 2016
TL;DR: In this article, the experimental evaluation of the performance of 3-φ self-excited induction generator (SEIG) suitable for pico-hydro power generation system feeding domestic load in remote mountainous region is presented.
Abstract: This paper presents the experimental evaluation of the performance of 3-φ self-excited induction generator (SEIG) suitable for pico-hydro power generation system feeding domestic load in remote mountainous region. The use of induction generators is most suitable for renewable energy conversion systems due to their enormous advantages over conventional synchronous generators. Important features of induction generators include the simplicity in construction, ruggedness, simplified control, ease in maintenance and small size per generated kW. The performance characteristics of 3-φ SEIG feeding isolated load are evaluated using MATLAB-Simulink model based on the prevalent renewable energy sources inputs and loading conditions in mountainous terrain of Himalayas. The results are validated using an experimental set-up comprising of 3-φ, 3 HP induction motor run as 3- φ induction generator driven by 5HP, 4-pole DC shunt motor acting as prime-mover.

3 citations


Cites background from "Experimental evaluation of capacita..."

  • ...The exact requirement of the capacitance depends upon the value of kVAr required and value of this capacitance is calculated in number of ways [4]-[10]....

    [...]

Proceedings ArticleDOI
01 Nov 2016
TL;DR: In this article, the design procedure of electronic load controllers for three-phase self-excited induction generators used in pico and micro hydro power generation system feeding an isolated electrical load in remote mountainous region.
Abstract: This paper presents the design procedure of electronic load controllers for three-phase self-excited induction generators used in pico and micro hydro power generation system feeding an isolated electrical load in remote mountainous region. For isolated type of load, induction generators are preferred as they possess many advantages over conventional synchronous generators. These advantages include better control, increased reliability and improved efficiency in renewable energy conversion systems using latest power electronics devices and advanced control techniques. Under varying load and input conditions, suitable control is necessary to maintain the required voltage and frequency of induction generator output. This paper presents design procedures of conventional & modern electronic load controllers used in micro and pico hydro power generation system involving three-phase self-excited induction generator feeding isolated load.

1 citations

References
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Journal ArticleDOI
TL;DR: A survey of the literature over the past 25 years discussing the process of self-excitation and voltage buildup, modeling, steady-state, and transient analysis, reactive power control methods, and parallel operation of SEIGs is presented in this article.
Abstract: Induction generators are increasingly being used in nonconventional energy systems such as wind, micro/mini hydro, etc. The advantages of using an induction generator instead of a synchronous generator are well known. Some of them are reduced unit cost and size, ruggedness, brushless (in squirrel cage construction), absence of separate dc source, ease of maintenance, self-protection against severe overloads and short circuits, etc. In isolated systems, squirrel cage induction generators with capacitor excitation, known as self-excited induction generators (SEIGs), are very popular. This paper presents an exhaustive survey of the literature over the past 25 years discussing the process of self-excitation and voltage buildup, modeling, steady-state, and transient analysis, reactive power control methods, and parallel operation of SEIG.

463 citations

01 Jan 1982
TL;DR: An analytical technique using the `Newton-Raphson' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load.
Abstract: An analytical technique using the `Newton-Raphson' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load. The technique is shown to be very efficient in analysing such systems under steady state. Computed results are compared with the experimentally obtained values on a laboratory machine, and a reasonable correlation has been observed. Effects of various system parameters on the steady-state performance have been studied, and the results presented provide guidelines for optimum design of such systems.

368 citations

DOI
01 Nov 1982
TL;DR: In this article, an analytical technique using the ''Newton-Raphson'' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load.
Abstract: An analytical technique using the `Newton-Raphson' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load. The technique is shown to be very efficient in analysing such systems under steady state. Computed results are compared with the experimentally obtained values on a laboratory machine, and a reasonable correlation has been observed. Effects of various system parameters on the steady-state performance have been studied, and the results presented provide guidelines for optimum design of such systems.

367 citations

Book
01 Jan 1961
TL;DR: Alternating current machines, AlternatingCurrent machines, مرکز فناوری اطلاعات و اشاوρزی رسانی, ک اوشا�رز عائدار, £2,500, £3,000, £4,000.
Abstract: Alternating current machines , Alternating current machines , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

252 citations

Journal ArticleDOI
TL;DR: The increasing rate of depletion of conventional energy resources and the ability of induction generators to convert mechanical power over a wide range of rotor speeds have given rise to an interest in the possible contribution of wind energy to provide fuel displacement as discussed by the authors.
Abstract: The increasing rate of depletion of conventional energy resources and the ability of induction generators to convert mechanical power over a wide range of rotor speeds have given rise to an interest in the possible contribution of wind energy to provide fuel displacement.

234 citations