Harmonic Effects Analysis of Electronic Loads Controller Controller On Self Excited Induction Generator (SEIG) Operations

Nazir, Refdinal; Pawawoi, Andi; Amalia, Riska

doi:10.11591/ijeecs.v8.i2.pp273-280

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…But both of these generators will provide different harmonic performance responses to the installation of ELC on both generators. Previous studies in the literature [6] have compared the harmonic performance response between SEIG and SG if connected with the same non-linear load. In this paper, differences in harmonic perfomance responses between SEIG and SG that installed with ELC type uncontrolled bridge rectifiers with DC Chopper as voltage controllers and generator frequencies during load variations is studied.…”

Section: Introductionmentioning

confidence: 99%

Differences in the impact of harmonic distortion due to the installation of electronic load controller in self-excited induction generator and synchronous generator

Nazir¹,

Syafii²,

Pawawoi³

et al. 2019

IJPEDS

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In general, the application of Self-Excited Induction Generator (SEIG) or Synchronous Generator (SG) on the Stand-Alone Micro Hydel Power Plant (MHPP) is equipped with Electronic Load Controller (ELC) to control generator output during variations in consumer load. One type of ELC that is cheap and rigid developed today is the ELC, which is constructed by the uncontrolled bridge rectifier with DC Chopper. Based on the operational concept, basically this type of ELC can be implemented on both SEIG and SG, but both of these generators will have a different harmonic distortion effect on the output and its load. This paper examines the differences in the effects of harmonic distortions due to ELC installation on SEIG and SG. The initial stage of this study was to design the ELC developed. Then, the harmonic distortion response due to the installation of ELC on SEIG and SG is tested, which includes harmonic distortion in: stator current, PCC voltage, and consumer load current. THDI (Current Total Harmonic Distortion) stator current at SEIG with ELC has shown an average value smaller than the THD stator current in SG with ELC. Likewise, the THDV (Voltage Total Harmonic Distortion) value of PCC voltage and THDI value of the current consumer load on SEIG equipped with ELC has been shown to be smaller than the THDV value of PCC voltage and THDI value of the current consumer load on SG equipped with ELC. The effects of harmonic distortions due to the installation of ELCs that developed in this study on SEIG is still within the permitted limits, while on the SG, the harmonic distortion reduction is needed at the generator output.

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Section: Introductionmentioning

confidence: 99%

Differences in the impact of harmonic distortion due to the installation of electronic load controller in self-excited induction generator and synchronous generator

Nazir¹,

Syafii²,

Pawawoi³

et al. 2019

IJPEDS

Self Cite

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“…Induction generators are widely used in small-scale power plants driven by renewable energy, such as wind, mini/micro-hydro, tidal wave, biomass, biogas, etc. [1][2][3]. This generator has been chosen because it has many advantages, such as easy maintenance, low price, and strong construction [4][5].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Electronic Load Controller with Bidirectional Converter in Self-Excited Induction Generator

Pawowoi

Muslyadi

Nazir

et al. 2022

JNTE

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Induction generators are widely used in small-scale power plants driven by renewable energy, such as wind, mini/micro-hydro, tidal wave, biomass, biogas, etc. In applying this generator to a micro-hydropower plant, it is usually equipped with an ELC (Electronic Load Controller), which regulates the frequency to remain constant at a safe tolerance limit (49.8 – 50.2 Hz). However, this system is still not optimal because the ELC dumps its excess power into the dummy load. This paper proposes an ELC system that can adjust the frequency to remain constant without wasting excess power from the generator. This system uses the working principle of a bidirectional converter, which can regulate the flow of power from the generator and dummy load in two directions. In the proposed system, the dummy load uses a battery to store excess electrical energy and be utilized and reused when needed. Performance analysis of the proposed system uses simulation with MATLAB Simulink software. The induction generator used has a voltage specification of 380 Y, 50 Hz, 1420 rpm, 3.5 A, and 1.5 kW. The analysis results show that the developed ELC design can adjust the frequency in the value range of 49.98-50.01 Hz during load changes with a range of 955 Watt to 1.045 Watt, with the response time reaching its steady-state value of 0.1-0.4 seconds.

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“…This is mainly due to the induction generator (squirrel-cage rotor) has a number of advantages over synchronous generators, including: strong and simple rotor construction, minimal maintenance, simple operation, has the ability to self-protection. In addition, induction generators are more resistant to harmonic currents generated by non-linear loads or electronic load controllers (ELC) [5][6][7][8]. There are 2 operating patterns of induction generators applied, namely: operation as a stand-alone generator and operation as a generator connected to the grid [3,9].…”

Section: Introductionmentioning

confidence: 99%

Effect analysis of residual magnetism availability level on the success of voltage generation processes in self-excited induction generators

Nazir

Syafii

Pawawoi

et al. 2020

IJPEDS

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The voltage generation process is a very crucial initial stage for the successful operation of the self-excited induction generator (SEIG). The availability of residual magnetism and the adequacy of excitation capacitor value are factors that determine the success of the voltage generation process on the SEIG. This paper analyzes the effect of the availability of residual magnetism on the rotor's magnetic core. With a simple approach, the terminal voltage on the SEIG can be solved through the intersection between the magnetization curve (Xm) and the excitation curve (Xce). The shape and equation of the magnetization curve will be affected by the availability of residual magnetism. The change in residual magnetism availability will cause a change in the intersection point between the magnetization curve (Xm) and the excitation curve (Xce), which will determine the value of voltage generated by the generator. In this study, Newton Rhapson's method with numerical iteration approach has been used to analyze the effect of changes in the availability of residual magnetism on the success of voltage generation on the SEIG. The analysis results have been shown that the availability of residual magnetism with residual voltage values below 1.04 Volt will cause the failure of the SEIG to generate the terminal voltage at its nominal value. Meanwhile, the availability of residual magnetism in SEIG with residual voltage values above 1.04 Volt, will succeed in generating terminal voltage at its nominal value. For SEIG used as the object of this study, the value of Eres = 1.04 Volt is a critical value of the availability of residual magnetism.

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Harmonic Effects Analysis of Electronic Loads Controller Controller On Self Excited Induction Generator (SEIG) Operations

Cited by 4 publications

References 3 publications

Differences in the impact of harmonic distortion due to the installation of electronic load controller in self-excited induction generator and synchronous generator

Differences in the impact of harmonic distortion due to the installation of electronic load controller in self-excited induction generator and synchronous generator

Analysis of Electronic Load Controller with Bidirectional Converter in Self-Excited Induction Generator

Effect analysis of residual magnetism availability level on the success of voltage generation processes in self-excited induction generators

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