Experimental analysis of a self-excited induction generators operating in parallel with synchronous generators applied to isolated load generation

Vanço, Wagner E.; Silva, Fernando Bento; Goncalves, Felipe Adriano Silva; Silva, Eudinei de Oliveira; Bissochi, C.A.; Neto, Luciano Martins

doi:10.1109/tla.2016.7483508

Cited by 12 publications

(3 citation statements)

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“…However, their application is also possible in IPSs with power output from several megawatts and higher. In scientific papers devoted to the study of isolated and islanded hydraulic power stations (HPSs), HPSs with one hydroelectric unit are most often considered and somewhat less HPSs with two or more generators operating in parallel [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Modification of the Master Generator Method Used for Frequency and Voltage Control in Isolated Power Systems With Parallel Operating Ac Generators

et al. 2023

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Such methods as droop method, curve shifting method and master-slave method were primarily developed for voltage and frequency regulation in isolated power systems with synchronous generators. In modern power systems induction generators, regulated dump loads, energy storage devices with AC/DC and AC/DC/AC power converters, etc. are used in addition to synchronous generators. The investigation of new configurations of power systems is closely tied with further development of control methods for load sharing and regulation of voltage and frequency of the systems. The article reviews simple-to-implement known control methods used for control of isolated power systems with parallel operated synchronous generators and proposes a modification of the master-slave method for control of power systems with parallel operated synchronous and induction generators, static var compensators, dump loads and energy storage devices with interface power converters. The system “Hydroelectric unit with a synchronous generator - dump load - hydroelectric unit with an induction generator - compensating capacitors - transformer – AC local load" is considered and two techniques for regulation of electric frequency and voltage magnitude in the specified system are presented with accordance to the statements of the proposed modified method. The proposed control algorithm of the dump load frequency controller is in agreement with the control algorithm of the speed controller of the master unit. The functions assigned to the electronic PID speed controller of the master unit are to maintain the electric frequency in the system equal to nominal value and regulate the active power sharing. Verification of the proposed control algorithms for isolated electric power systems was carried out. References 23, figures 5, table 1.

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Section: Introductionmentioning

confidence: 99%

Modification of the Master Generator Method Used for Frequency and Voltage Control in Isolated Power Systems With Parallel Operating Ac Generators

et al. 2023

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“…Therefore, the performance analysis of SEIG as an isolated generation mode is necessary. The self‐excitation methodology in [23] presents that by using a capacitor hub externally in an isolated mode, the induction machine can be operated as a Induction Generator (IG) [24]. The required magnetization current for SEIG is provided by the following excitation methods [25]: (i)By fixed capacitor, (ii)By switched capacitor, (iii)By controlled capacitors and (iv)With controlled reactance and capacitors. …”

Section: Introductionmentioning

confidence: 99%

Performance characteristics and reliability assessment of self‐excited induction generator for wind power generation

Varshney

Vardhan²,

Vardhan³

et al. 2021

IET Renewable Power Gen

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The paper presents the performance analysis‐based reliability estimation of a self‐excited induction generator (SEIG) using the Monte‐Carlo simulation (MCS) method with data obtained from a self‐excited induction motor operating as a generator. The global acceptance of a SEIG depends on its capability to improve the system's poor voltage regulation and frequency regulation. In the grid‐connected induction generator, the magnetizing current is drawn from the grid, making the grid weak. In contrast, in the SEIG stand‐alone operation, an external capacitor arrangement is implemented to render the reactive power support. This capacitor arrangement is connected across the stator terminals during the stand‐alone configuration of SEIG. The capacitor serves two purposes, which include voltage build‐up and power factor improvement. Therefore, the paper deals with obtaining the minimum capacitor value required for SEIG excitation in isolated mode applications, including stand‐alone wind power generation. The SEIG performance characteristics have been evaluated for different SEIG parameters. The simulation and experimental results are then compared and found satisfactory. Then, SEIG reliability is estimated considering the MCS method utilizing SEIG excitation's failure and success rates during experimental work in the laboratory. Finally, the SEIG reliability evaluation is performed considering different wind speeds.

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“…There exist various techniques employed for voltage control on the self-excited induction generator, among which one can highlight the shunt saturable reactor [18], Static Synchronous Series Compensator (SSSC) [19], Series and Parallel compensation [20], [21] and inductors switched by thyristors [22]. An experimental analysis of induction generators operating in parallel with synchronous generators in isolated systems is presented in [23], based on the influence of the use or not of the capacitor bank, observing the behavior of the synchronous generator excitation current.…”

Section: Introductionmentioning

confidence: 99%

A Proposal of Expansion and Implementation in Isolated Generation Systems Using Self-Excited Induction Generator With Synchronous Generator

et al. 2019

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This work presents a theoretical and experimental study of the self-excited three-phase induction generator in steady state, operating with a synchronous generator for use in isolated generation. Through the remoteness of many locations or because of the absence of an energy distribution network, difficulties exist in the supply of electric energy. The proposal contemplated herein can be applied in order to provide a well-adjusted voltage and reduce project costs in the expansion and implementation of isolated systems. That is, when taking into consideration acquisition costs of the asynchronous squirrel cage rotor machine in relation to the synchronous generator. The main contribution of this study is the making of the synchronous generator into a voltage regulator of the isolated system, in such a manner that the synchronous generator supplies the minimum of active power necessary, where a lower power generator is able to play the role of being the sole voltage regulator.

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Experimental analysis of a self-excited induction generators operating in parallel with synchronous generators applied to isolated load generation

Cited by 12 publications

References 0 publications

Modification of the Master Generator Method Used for Frequency and Voltage Control in Isolated Power Systems With Parallel Operating Ac Generators

Modification of the Master Generator Method Used for Frequency and Voltage Control in Isolated Power Systems With Parallel Operating Ac Generators

Performance characteristics and reliability assessment of self‐excited induction generator for wind power generation

A Proposal of Expansion and Implementation in Isolated Generation Systems Using Self-Excited Induction Generator With Synchronous Generator

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