Implementing the System Functions of the Automatic Proportional-Derivative Excitation Control of Synchronous Generators

Komkov, A. L.; Попов, Евгений Николаевич; Filimonov, N. Yu.; Yurganov, A. A.; Burmistrov, A. A.

doi:10.1007/s10749-019-01084-y

Cited by 5 publications

(3 citation statements)

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“…To assess the impact of the PSS on the nature of the resulting error, stabilizing channels with different input parameters (the rotor current if for AVR&PSS1 and the generator voltage frequency fu for AVR&PSS2) and settings were added to the AVR-PID structure (Fig. 22 and Table 5) [34].…”

Section: B Validation Results In the Case Of Efd = Var And Tm = Constmentioning

confidence: 99%

Validation of Positive-Sequence Modeling of Large-Disturbance Stability in a Distribution Network With Distributed Generation Using the Hybrid Comprehensive Simulator

et al. 2021

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One of the general trends in power industry is the penetration of distributed generation (DG) units. The ongoing transformation of electric power systems (EPS) due to this penetration leads to a significant change in the properties of power systems. The problem arises in the ensuring stability of distribution system with DG units and EPS as a whole, especially in the case of large disturbances. The main way of solving this problem is positive-sequence phasor time-domain simulation. However, the known simplifications and limitations are inevitably applied at such simulation. In this regard, the obtained simulation results need to be validated. This paper proposes an alternative approach for validation of processes calculations, based on the use of a benchmark tool instead of field data. The hybrid simulator is proposed to use as a benchmark tool, because such simulator allow to obtain comprehensive information about a single spectrum of wave, electromagnetic, electromechanical processes in power system in cases of different large disturbances. That makes possible to identify the impact of the applied simplifications and limitations in the positive-sequence simulation on the reliability of power system stability assessment in the case of large disturbances. The studies presented in this paper were carried out using the scheme of distribution system with DG units, which is part of a real EPS. The obtained results demonstrate the arising errors in stability calculations, the nature of their changing and causes of occurrence, as well as factors affecting them.

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Section: B Validation Results In the Case Of Efd = Var And Tm = Constmentioning

confidence: 99%

Validation of Positive-Sequence Modeling of Large-Disturbance Stability in a Distribution Network With Distributed Generation Using the Hybrid Comprehensive Simulator

et al. 2021

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“…The level of reliability of the functioning of the energy system is determined, along with other factors, the reliability and operational characteristics of the used electric power equipment, control devices and systems, including the characteristics of microprocessor-based devices for automatic control, protection and automation [13]. At the same time, products offered on the electric power market are not always free from algorithmic and software errors, and adaptation to operating conditions in power systems is not performed properly [14]. All this leads to an increase in the number of technological failures in energy systems and a decrease in the reliability of parallel operation of power plants and power systems [15].…”

Section: Methodsmentioning

confidence: 99%

Modernization of Automatic Excitation Control Systems of Generators in Syrdarya TPP

Makhmudov

Nurmatov

2021

Electromechanics and Robotics

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For reliable operation of electrical systems, it is necessary to ensure the stability of parallel operation of power plants and power systems. Violation of their stability leads to the repayment of a large number of electricity consumers, equipment damage and other negative consequences. Excitation systems can improve the quality of voltage control during sudden fluctuations in the load and with a short circuit at the output of synchronous generators. The aim of this work is to verify the automatic excitation controllers installed during the modernization process on the generators of the Syrdarya TPP in the DISILENT power factory software package. The article presents the results of a study in which the effect of the installed system of automatic control of excitation in the process of modernization on the quality of transient indicators is analyzed. Transient analysis showed an improvement in transient quality indicators such as decay time, overregulation and static error.

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“…In Fig. 2 shows the P-Q diagram of a synchronous motor, thus, the area of admissible operating modes of the motor in the axes of coordinates "PQ" is limited to the right by the rated excitation current, from above by the rated active power and on the left by the minimum consumed reactive power [14].…”

Section: Modelingmentioning

confidence: 99%

Influence of Automatic Excitation Regulators on Modes of Hydropower Plants

Allaev

Nurmatov

Makhmudov

2021

Electromechanics and Robotics

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The article discusses electrical systems that include pumping stations. Taking into account the fact that the pumping stations are equipped with synchronous motors, it is proposed to use their excitation system in the mode of outputting reactive power to the electrical system. Synchronous motors, due to their design features and high technical and economic indicators, are increasingly used in industry. The expediency of regulating the excitation of a synchronous motor operating on a variable load follows from the following considerations: with large changes in the power on the shaft, to ensure sufficient dynamic stability of the synchronous motor during the period of the load, its excitation must be maintained at a maximum level. To ensure favorable economic and energy performance of the synchronous motor during the period of no load, it is advisable to reduce the excitation current. To ensure the modes of the supply network with high technical and economic indicators, it is required that synchronous motors give maximum reactive energy to the network. The amount of reactive energy delivered, depending on the mode of the supply network and the load of synchronous motors, must change, which is achieved by the automatic excitation controllers (AEC) of synchronous motors according to certain laws. In the work, the results of virtual modeling of the steady state of an electric power system containing a large pumping station are obtained, and the values of voltages in the nodes and the level of losses in the electric network are determined.

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Implementing the System Functions of the Automatic Proportional-Derivative Excitation Control of Synchronous Generators

Cited by 5 publications

References 0 publications

Validation of Positive-Sequence Modeling of Large-Disturbance Stability in a Distribution Network With Distributed Generation Using the Hybrid Comprehensive Simulator

Validation of Positive-Sequence Modeling of Large-Disturbance Stability in a Distribution Network With Distributed Generation Using the Hybrid Comprehensive Simulator

Modernization of Automatic Excitation Control Systems of Generators in Syrdarya TPP

Influence of Automatic Excitation Regulators on Modes of Hydropower Plants

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