Diagnosis of challenges for power system protection – selected aspects of transformation of power systems

Szablicki, M.; Rzepka, P.; Halinka, A.; Sowa, P.

doi:10.1109/meps46793.2019.9394979

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…In order to achieve energy independence they need a lot of renewable energy sources (RESs). However, this leads to increased technical challenges for PS operators [1]. Many of these challenges have already been identified in detail and risk mitigation options have been defined, inter alia, in the Network Codes (NCs) [2].…”

Section: Introductionmentioning

confidence: 99%

Simulation Verification of Overcurrent Protection Operation in Power Networks Integrating Renewable Energy Sources in Energy Communities

2021

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This publication discusses the risks of further use of classical overcurrent protections in modern power systems. The increasing penetration of renewable energy sources has caused a lot of challenges, among other things, the development of energy communities that balance local generation and consumption. Usually the interconnection line between the energy community and power systems are only used to balance the shortage or overflow of energy. As a result, most of the time these connections can be low loaded. Such a state can cause incorrect operation of power system protection approached, because the current level values are smaller than the required activation level for the protections. This article presents the potential incorrect operation of digital power system protection with overcurrent function. The obtained simulation results clearly show that the correctness of protection operation is strongly dependent on the level load of lines and the parameters and structure of the protection decision algorithms. These problems occur during low load line periods because these were not taken into account during the classical digital protection design stage. In the future this can cause problems with the fulfillment of the basic protection requirements of stability, speed, sensitivity. This publication suggests extra problems for power system protection research.

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Section: Introductionmentioning

confidence: 99%

Simulation Verification of Overcurrent Protection Operation in Power Networks Integrating Renewable Energy Sources in Energy Communities

2021

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Design of Adaptive Training Control in Dispatcher Training Simulators

Lai

Chen

Dong

et al. 2023

2023 8th Asia Conference on Power and Electrical Engineering (ACPEE)

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Electromagnetic Transients in Multi-Voltage Transmission Lines during Non-Simultaneous Faults

Zychma

Sowa

2022

Energies

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It is vitally important that a transmission network provides a continuity of electricity to end users and that the transmission system operator prioritizes its safety and reliability. This article presents the possibilities of using multi-track overhead lines with varying levels of rated voltage, run on a common support structure. This solution would ensure safe operation of the system, reduce the area used for the construction of new overhead lines, and, at the same time increase the transmission network capacity. This article focuses on the method of modeling overhead lines for the analysis of electromagnetic transient states that occur during non-simultaneous disturbance phenomena. This article presents the idea of multi-circuit, multi-voltage lines and their validity of use in power systems. An analysis of electromagnetic transient states for non-simultaneous disturbances in multi-path, multi-voltage lines is presented. This analysis has been made on the basis of a network model, using ATP-EMTP (Alternative Transients Program-Electromagnetic Transients Program) software for solutions, for a Polish power system. Particular attention was paid to the most unfavorable phenomena appearing in the modeled system. The impact of the emerging electromagetic transients in multi-path, multi-voltage lines was evaluated. It was shown that the specificity and rapid changeability of the emerging electromagnetic transients and lack of a universal model of the overhead power line make the analyses of electromagnetic transients highly labor-intensive and time-consuming. Each change is connected with the necessity to create new line models for the study of electromagnetic transient states dependent on many factors.

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Diagnosis of challenges for power system protection – selected aspects of transformation of power systems

Cited by 4 publications

References 11 publications

Simulation Verification of Overcurrent Protection Operation in Power Networks Integrating Renewable Energy Sources in Energy Communities

Simulation Verification of Overcurrent Protection Operation in Power Networks Integrating Renewable Energy Sources in Energy Communities

Design of Adaptive Training Control in Dispatcher Training Simulators

Electromagnetic Transients in Multi-Voltage Transmission Lines during Non-Simultaneous Faults

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