Parameter estimation of a synchronous generator model under unbalanced operating conditions

Geraldi, Edson L.; Fernandes, Tatiane C. C.; Piardi, Artur B.; Grilo, Ahda P.; Ramos, Rodrigo A.

doi:10.1016/j.epsr.2020.106487

Cited by 19 publications

(13 citation statements)

References 16 publications

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“…Hence, it is necessary to develop the description of the generator, that operates into an isolated load, represented as a take-off load, taking into account the fact that it is a new type of generator [27][28][29][30][31][32][33][34][35].…”

Section: Mathematical Descriptionmentioning

confidence: 99%

Modified Permanent Magnet Synchronous Generators for Using in Energy Supply System for Autonomous Consumer

2021

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In this paper, the possibility of using synchronous generators with magnetoelectric excitation for the autonomous consumers’ supply with the use of renewable energy sources is considered. To eliminate a number of the disadvantages associated with the difficulty of energy-efficient regulation of the generated parameters, such as the generated current and voltage, the use of modified multi-winding synchronous generators with permanent magnets is proposed. It allows solving the problem of controlling this type of generator. In addition, the use of this type of generator helps to increase the amount of energy generated. The authors have proposed several synchronous generators with permanent magnets of various supply network architectures: single-phase, two-phase and traditional three-phase types. This will simplify the design of architecture for several cases of consumer power supply systems. It will also help to eliminate the need to organize a balanced distribution of loads in phases to prevent accidents, damage and/or disabling of consumers themselves. Here, we considered mathematical descriptions of several types of generators that differ in their assembling, in particular, the number of phases (one-, two- and three-phase generators), the number of pairs of permanent magnet poles on the rotor, and the method of switching the generator windings among themselves. Using the developed mathematical descriptions that describe the operation of every single winding of the generator, their mathematical models were developed in the SimInTech mathematical modeling environment. The results of the mathematical modeling of these generators were presented; their interpretation for use with renewable energy sources was made; and the methods of using these generators were described. The developed mathematical descriptions of synchronous generators with permanent magnets can be used for further study of their operation. It can also help for the development of control systems and power systems for micro-grid energy complexes that use renewable energy sources to increase the energy efficiency of micro-grid systems.

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Section: Mathematical Descriptionmentioning

confidence: 99%

Modified Permanent Magnet Synchronous Generators for Using in Energy Supply System for Autonomous Consumer

2021

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“…In the first step, it is investigated the sensitivity of the measured output variables in relation to each parameter of the proposed microgrid equivalent model, using the Trajectory Sensitivity Function (TSF). As pointed out by [13], this technique can support the evaluation of the parameters to be tuned for a specific sampling window of measurements.…”

Section: Approach For Parameters Identification Of the Equivalent Modelmentioning

confidence: 99%

Method to Build Equivalent Models of Microgrids for RMS Dynamic Simulation of Power Systems

Ramos¹,

Pavani²,

Piardi³

et al. 2021

Preprint

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“…Owing to the importance of SGs in the power grid, the literature in SG dynamic analysis is very rich 24‐30 . In Reference 25, parameters of the ninth‐order model of SG are estimated using the unscented Kalman filter (UKF).…”

Section: Introductionmentioning

confidence: 99%

“…UKF has been shown promising results for measurement noise filtering and estimating parameters. Parameters of a three‐phase SG model are estimated in Reference 26 using an enhanced UKF method in unbalanced conditions considering the zero‐sequence circuit. Research on SG parameter identification using PMU measurements has been conducted in References 27 and 28.…”

Section: Introductionmentioning

confidence: 99%

A new method to identify synchronous generator and turbine‐governor parameters of a gas unit using a closed‐loop model

Zaker

Khalili

Rabieyan

et al. 2021

Int Trans Electr Energ Syst

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Summary In this paper, an efficient three‐stage algorithm for identifying the turbine‐governor (TG) and synchronous generator (SG) parameters is proposed. Instead of considering approximate models, precise models of the TG and SG are used. In the proposed approach, d‐q axes parameters of SG, mechanical parameters of SG, and TG model parameters are estimated. For the TG model, all the main control loops are carefully modeled with respect to the real‐world system. Moreover, the robustness of the governor is enhanced by employing an anti‐windup configuration for the load‐speed controller. The well‐known seventh‐order SG model is also used. The accuracy of the model and effectiveness of the parameter identification procedure is verified by experimental data. The results show satisfactory numbers for the selected performance index in various operating points when different controllers are in effect.

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Parameter estimation of a synchronous generator model under unbalanced operating conditions

Cited by 19 publications

References 16 publications

Modified Permanent Magnet Synchronous Generators for Using in Energy Supply System for Autonomous Consumer

Modified Permanent Magnet Synchronous Generators for Using in Energy Supply System for Autonomous Consumer

Method to Build Equivalent Models of Microgrids for RMS Dynamic Simulation of Power Systems

A new method to identify synchronous generator and turbine‐governor parameters of a gas unit using a closed‐loop model

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