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Journal ArticleDOI

Current Control of the Isolated Self-Excited Induction Generator using Shunt Active Filter

01 Jan 2012-Energy Procedia (Elsevier)-Vol. 18, pp 349-358
TL;DR: In this article, a shunt active power filter was implemented using a three phase PWM current controlled voltage source inverter (VSI) and connected to the wind generator and loads in order to compensate the current harmonics and reactive power.
About: This article is published in Energy Procedia.The article was published on 2012-01-01 and is currently open access. It has received 13 citations till now. The article focuses on the topics: Induction generator & Shunt generator.
Citations
More filters
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

Journal ArticleDOI
TL;DR: The obtained simulation results show an adequate dynamic of the conversion system using the proposed method compared to the classical approaches, and a comparison was made with classical DTC and field oriented control method.
Abstract: This paper presents a modulated hysteresis direct torque control (MHDTC) applied to an induction generator (IG) used in wind energy conversion systems (WECs) connected to the electrical grid through a back-to-back converter. The principle of this strategy consists in superposing to the torque reference a triangular signal, as in the PWM strategy, with the desired switching frequency. This new modulated reference is compared to the estimated torque by using a hysteresis controller as in the classical direct torque control (DTC). The aim of this new approach is to lead to a constant frequency and low THD in grid current with a unit power factor and a minimum voltage variation despite the wind variation. To highlight the effectiveness of the proposed method, a comparison was made with classical DTC and field oriented control method (FOC). The obtained simulation results, with a variable wind profile, show an adequate dynamic of the conversion system using the proposed method compared to the classical approaches.

61 citations

Journal ArticleDOI
TL;DR: Artificial neural network (ANN) based control system is designed to improve SAPF performance in terms of total harmonic distortion.

55 citations

Proceedings ArticleDOI
01 Oct 2017
TL;DR: This paper explores the control of shunt active power filters based on: 1) instantaneous power control strategy (p-q Theory) for extracting the reference currents for APF, and 2) adaptive hysteresis current control (AHCC) strategy for performance evaluation.
Abstract: In power grids, the active power filter (APF) is an important device for compensation of harmonic pollution and reactive power caused by nonlinear loads However, the control method has a significant influence on the APF performance in eliminating the distorted currents Henceforth, this paper explores the control of shunt active power filters based on: 1) instantaneous power control strategy (p-q Theory) for extracting the reference currents for APF, and 2) adaptive hysteresis current control (AHCC) strategy for performance evaluation Different case studies are carried out such as, balanced/unbalanced source with balanced/unbalanced load, distorted source with balanced load in Matlab®/ SimPowerSystems Simulation results highlight the effectiveness of the proposed control method

15 citations

Proceedings ArticleDOI
01 Dec 2017
TL;DR: In this paper, the automatic voltage regulation of three-phase self-excited induction generator which can be used with wind energy was considered. And the stability limits by selecting the optimum corresponding capacitance for a given load was investigated.
Abstract: The paper considers the automatic voltage regulation of three-phase self-excited induction generator which can be used with wind energy. Also it describes the load frequency control by rotor resistance and the voltage control by switching capacitor. To analyze the performance of induction generator, an automatic voltage regulation diagram was developed. We propose a new method based on switched capacitor scheme and power electronics control. Experimental results show that the voltage can be maintained constant for different power load. The stability limits by selecting the optimum corresponding capacitance for a given load was investigated.

13 citations


Cites methods from "Current Control of the Isolated Sel..."

  • ...New method of voltage and frequency control based on Newton Raphson algorithm was used in [7]....

    [...]

References
More filters
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

Journal ArticleDOI
TL;DR: In this article, a 3-phase voltage source inverter bridge with a DC bus capacitor is used as an active filter (AF) to eliminate harmonics and compensate the reactive power of the nonlinear loads.
Abstract: This paper deals with a new control scheme for a parallel 3-phase active filter to eliminate harmonics and to compensate the reactive power of the nonlinear loads. A 3-phase voltage source inverter bridge with a DC bus capacitor is used as an active filter (AF). A hysteresis based carrierless PWM current control is employed to derive the switching signals to the AF. Source reference currents are derived using load currents, DC bus voltage and source voltage. The command currents of the AF are derived using source reference and load currents. A 3-phase diode rectifier with capacitive loading is employed as the nonlinear load. The AF is found effective to meet IEEE-519 standard recommendations on the harmonics level.

258 citations

Journal ArticleDOI
TL;DR: In this paper, an analysis and design of an electronic load controller for three-phase self-excited induction generators (SEIGs) suitable for stand-alone pico-hydro power generation with constant input power is presented.
Abstract: This paper presents an analysis and design of an electronic load controller (ELC) for three-phase self-excited induction generators (SEIGs) suitable for stand-alone pico-hydro power generation with constant input power. Here, the SEIG can be used to generate constant voltage and frequency if the electrical load is maintained constant at its terminals. Moreover, under such operation, SEIG requires constant capacitance for excitation resulting in a fixed-point operation. For this purpose, a suitable control scheme has to be developed such that the load on the SEIG remains constant despite change in the consumer load. In such applications, water is freely available and, hence, a simple and cheap controller has to be developed, which can operate almost unattended in remote and hilly regions. The proposed ELC consists of an uncontrolled rectifier and chopper with a series "dump" load. Proper design of rectifier, chopper, and dump load is very important for troublefree operation of ELC. In this paper, an analysis along with a design procedure for computing the rating of various components of ELC is presented for a range of SEIGs.

159 citations

Journal ArticleDOI
TL;DR: In this paper, an analytical method is proposed to compute, Cmin, the minimun capacitance value required for self excitation under no load conditons, and it is shown that Cmin is inversely proportional to the square of the speed.
Abstract: Capacitance requirements for isolated self excitd induction generators are discussed. It is shown that numerical methods based upon the steady state as well as operational equivalent circuit give similar predicted values. An analytical method is proposed to compute, Cmin, the minimun capacitance value required for self excitation under no load conditons. It is shown that Cmin is inversely proportional to the square of the speed. Furthermore, it is inversely proportional to the maximum saturated magnetizing reactance. The theoretical results are verified experimentally for a number of test machines and a good agreement is observed between the theoretical and the experimental values. The influence of load impedance and its power factor on the terminal capacitance required to maintain self excitation under steady state is also examined and it is shown that when machine is loaded, the terminal capacitance should be several times that required at no load. Furthermore, the influence of terminal capacitor upon the maximum available output power fron isolated induction generators is also examined.

150 citations