The impact of load-shedding reaction time on power system stability

Eckl, Michael; Donnellan, Paul; Lerch, E.; Hoermann, Walter

doi:10.1109/pciceurope.2016.7604637

“…The authors of [15] underscore that the oil & gas industry incurs substantial financial losses during a generation failure, with a particular emphasis on system stability. Furthermore, they have developed a rapid and automatic load shedding system designed to restore the balance between generated power and loads.…”

Section: Introductionmentioning

confidence: 99%

Floating, Production, Storage, and Offloading Unit: A Contingency Operating Mode Using Variable Frequency Drives

Antunes,

Brandao,

Biajo

et al. 2024

IEEE Access

0

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With the current utilization of Floating, Production, Storage, and Offloading (FPSO) units by the petroleum industry, and the trend towards optimizing the energy efficiency of electrical systems, Variable Frequency Drives (VFDs) play a crucial role in enhancing the performance and power quality (PQ) of the power system on these offshore platforms. The FPSO unit operates in various modes, depending on its regular activities, such as contingency, production and offloading. Each operating mode has multiple grid configurations with different generation and load connections, including the contingency mode that is used for planned maintenance or failure in one of the aeroderivative gas turbine generators (GTGs). During the contingency mode, the FPSO unit runs with two GTGs and implements load shedding. Therefore, this paper investigates a specific case of the contingency operating mode, considering scenarios with zero, one, two, and three VFDs connected to the largest motors. Additionally, it analyzes VFDs with both passive and active frontend rectifiers, aiming to minimize the number of loads to be shed during contingency. The main result shows that by using the active front-end VFDs, 14.3 MW of loads that would be shut down during contingency mode can continue to operate.INDEX TERMS Energy efficiency, oil and gas platform, power factor, reactive power control, variable frequency drives.

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“…Dynamic simulations are very useful to optimize parameters and to check the effectiveness of the LS algorithm [10], [11], [12]. FLS functionalities in the industrial sector generally does not have a high degree of scalability.…”

Section: Introductionmentioning

confidence: 99%

Development and Validation of a Scalable Fast Load Shedding Technique for Industrial Power Systems

Petriccioli,

Grillo,

Comunello

et al. 2021

Preprint

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The work aims to improve the existing fast load shedding algorithm for industrial power system to increase performance, reliability, and scalability for future expansions. The paper illustrates the development of a scalable algorithm to compute the shedding matrix, and the test performed on a model of the electric grid of an offshore platform. From this model it is possible to study the impact on the transients of various parameters, such as spinning reserve and delay time. Subsequently, the code is converted into Structured Text and implemented on an ABB PLC. The scalability of the load shedding algorithm is thus verified, confirming its performance with respect to the computation of the shedding matrix and the usefulness of the dynamic simulations during the design phase of the plant.

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Development and Validation of a Scalable Fast Load Shedding Technique for Industrial Power Systems

Petriccioli

¹

,

Grillo

²

,

Comunello³

et al. 2021

2021 IEEE International Conference on Environment and Electrical Engineering and 2021 IEEE Industrial and Commercial Power Syst

1

0

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The work aims to improve the existing fast load shedding algorithm for industrial power system to increase performance, reliability, and scalability for future expansions. The paper illustrates the development of a scalable algorithm to compute the shedding matrix, and the test performed on a model of the electric grid of an offshore platform. From this model it is possible to study the impact on the transients of various parameters, such as spinning reserve and delay time. Subsequently, the code is converted into Structured Text and implemented on an ABB PLC. The scalability of the load shedding algorithm is thus verified, confirming its performance with respect to the computation of the shedding matrix and the usefulness of the dynamic simulations during the design phase of the plant.

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The impact of load-shedding reaction time on power system stability

Cited by 4 publications

References 1 publication

Floating, Production, Storage, and Offloading Unit: A Contingency Operating Mode Using Variable Frequency Drives

Floating, Production, Storage, and Offloading Unit: A Contingency Operating Mode Using Variable Frequency Drives

Development and Validation of a Scalable Fast Load Shedding Technique for Industrial Power Systems

Development and Validation of a Scalable Fast Load Shedding Technique for Industrial Power Systems

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