Proportional‐resonant control applied on voltage regulation of standalone SEIG for micro‐hydro power generation

Tischer, Celso Becker; Tibola, Jonas Roberto; Scherer, Lucas Giuliani; Camargo, Robinson Figueiredo de

doi:10.1049/iet-rpg.2016.0857

Cited by 54 publications

(22 citation statements)

References 48 publications

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“…Thereby new techniques and techniques already used for harmonic attenuation can be implemented for harmonic mitigation on synchronous generators operating in parallel with squirrel cage induction generators in nonsinusoidal regime. Such publications can be adapted to continue this research line for harmonic reduction in the isolated system proposed here.…”

Section: Additional Commentsmentioning

confidence: 99%

Effects of harmonic pollution on salient pole synchronous generators and on induction generators operating in parallel in isolated systems

Vanço

Silva

Oliveira

et al. 2020

Int Trans Electr Energ Syst

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Summary This work presents a study of the disturbances caused by harmonic pollution in salient pole synchronous generators (SPSG) and induction generators, when operating in parallel in isolated systems. SPSG are known to operate with induction generators, since the excitation system of the synchronous generator is responsible for the voltage control on the island system. Due to the increase in the employment of power electronics, the loads take on a nonlinear behavior, where these become responsible for the generation of harmonics, due to the switching of electrical devices. Therefore, the analysis of the disturbances that these loads cause in generators, in this proposed and studied architecture, becomes essential. For the synchronous generator, there is also presented the analyses of the oscillations for voltages and currents on the dq0 model, the currents induced on the damper winding, the disturbances on the load angle and on the field current. In terms of the induction generator, the voltage and current oscillations are also analyzed from the dq0 model on the slip frequency. All the identified and quantified disturbances are oscillations on the electric variables, which possess a pulsating nature of frequencies 6ω, 12ω, and 18ω for the synchronous and induction generators, the oscillations of the sixth order and its multiples, will be given in the harmonic slip frequency of their respective harmonic orders in positive and negative sequence. In this way, verification is made as to the appearance of high slippage on the rotor of the induction generator.

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Section: Additional Commentsmentioning

confidence: 99%

Effects of harmonic pollution on salient pole synchronous generators and on induction generators operating in parallel in isolated systems

Vanço

Silva

Oliveira

et al. 2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…. , 8) in Table I, should have at least one element less than zero. As the load increases, when its impedance reaches a certain value, the system is in a critical state between instability and stability.…”

Section: The Routh Criterion For Predicting Self-excited Induction Gementioning

confidence: 99%

“…. , 8) in Table I changes from being not all positive to completely positive, is the maximum load the self-excited induction generator can carry.…”

Section: The Routh Criterion For Predicting Self-excited Induction Gementioning

confidence: 99%

“…Self-excited induction generators have been widely used in renewable energy systems, such as wind power generation [1][2][3][4][5], as well as in isolated power systems, such as ships, aircrafts, and drilling platforms [6][7][8][9], due to their advantages of simplicity, robustness, low-cost, high reliability, no external excitation, and convenient maintenance. With rapid development of renewable and stand-alone energy generation systems, a lot of research has been carried out relating to self-excited induction generators.…”

Section: Introductionmentioning

confidence: 99%

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Load Capacity Analysis of Self-Excited Induction Generators Based on Routh Criterion

Xibo

et al. 2019

Energies

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In this paper, the Routh criterion has been used to analyze the stability of a self-excited induction generator-based isolated system which is regarded as an autonomous system. Special focus has been given to the load capacity of the self-excited induction generator. The state matrix of self-excited induction generators with resistor-inductor load has been established based on transient equivalent circuits in the stator stationary reference-frame. The recursive Routh table of self-excited induction generators is established by the characteristic polynomial coefficients of the state matrix. According to the Routh stability criterion, the necessary and sufficient condition to predict the critical loads of self-excited induction generators is deduced, from which the critical load impedance can be calculated. A simple self-excited induction generator-based isolated power system has been built up with a 2.2 kW self-excited induction generator. The theoretical analysis and experiments were all carried out based on this platform. In the range determined by the minimum excitation capacitance (C min ) and the maximum excitation capacitance (C max ), the critical loads under various power factors have been calculated. The agreement of the calculated theoretical results and experimental results demonstrate the effectiveness and accuracy of the proposed analysis method. The conclusions achieved lay a foundation for further application of Routh stability criterion in self-excited induction generator-based power systems analysis.

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“…Therefore, reducing the torque pulsation is essential to improve the torque performance of the DRPMSM drive system in single-redundancy operation mode. In order to overcome the torque ripple caused by the current of short-circuited coils and improve the performance of the single-redundancy operation of the DRPMSM, this paper firstly proposes an electromagnetic torque ripple suppression strategy for the DRPMSM, based on the proportional resonant (PR) controller [28,29]. When a coils short circuit fault occurs and the DRPMSM shifts into single-redundancy operation mode, the PR controller is paralleled with the proportional integral (PI) controller in the speed loop to suppress the electromagnetic torque ripple output.…”

Section: Introductionmentioning

confidence: 99%

Minimization of the Electromagnetic Torque Ripple Caused by the Coils Inter-Turn Short Circuit Fault in Dual-Redundancy Permanent Magnet Synchronous Motors

Chen

Zhang

2017

Energies

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Abstract:With the development of electric vehicles and More-Electric/All-Electric aircraft, high reliability is required in motor servo systems. The redundancy technique is one of the most effective methods to improve the reliability of motor servo systems. In this paper, the structure of dual-redundancy permanent magnet synchronous motor (DRPMSM) with weak thermal coupling and no electromagnetic coupling is analyzed and the mathematical model of this motor is established. However, there is little research on how to suppress the torque ripple caused by short-circuited coils in the DRPMSM. The main contribution of this paper is to present the advantages of DRPMSM and to find a way to suppress the torque ripple caused by the short circuit fault in DRPMSM. In order to improve operation quality and enhance the reliability of DRPMSM after a short circuit occurs, the torque ripple caused by the coils inter-turn short circuit fault in DRPMSM is analyzed in detail. Then, a control method for suppressing the electromagnetic torque ripple of a short-circuited coil is proposed for the first time by using an improved adaptive proportional resonant (PR) controller and a proportional integral (PI) controller in parallel. PR control is a method of controlling alternating components without steady-state error, and it can be used to suppress torque ripple. DRPMSM adopts speed and current double closed-loop control strategies. An improved adaptive PR controller and a PI controller are employed in parallel for the speed loop, while traditional PI control is adopted in current loop. From the simulation and experimental results, the torque ripple is reduced from 45.4 to 5.6% when the torque ripple suppression strategy proposed in this paper is adopted, in the case that the speed is 600 r/min. The torque ripple suppression strategy based on the PR controller can quickly and effectively suppress the torque ripple caused by the short-circuited coils, which makes the motor speed more stable.

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Proportional‐resonant control applied on voltage regulation of standalone SEIG for micro‐hydro power generation

Cited by 54 publications

References 48 publications

Effects of harmonic pollution on salient pole synchronous generators and on induction generators operating in parallel in isolated systems

Effects of harmonic pollution on salient pole synchronous generators and on induction generators operating in parallel in isolated systems

Load Capacity Analysis of Self-Excited Induction Generators Based on Routh Criterion

Minimization of the Electromagnetic Torque Ripple Caused by the Coils Inter-Turn Short Circuit Fault in Dual-Redundancy Permanent Magnet Synchronous Motors

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