A Continuous Multistage Load Shedding Algorithm for Industrial Processes Based on Metaheuristic Optimization

Florin-Constantin Baiceanu (), Ovidiu Ivanov (), Razvan-Constantin Beniuga, Bogdan-Constantin Neagu () and Ciprian-Mircea Nemes
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Florin-Constantin Baiceanu: Department of Power Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
Ovidiu Ivanov: Department of Power Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
Razvan-Constantin Beniuga: Department of Power Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
Bogdan-Constantin Neagu: Department of Power Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
Ciprian-Mircea Nemes: Department of Power Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania

Mathematics, 2023, vol. 11, issue 12, 1-19

Abstract: At complex industrial sites, the high number of large consumers that make the technological process chain requires direct supply from the main high-voltage grid. Often, for operational flexibility and redundancy, the main external supply is complemented with small local generation units. When a contingency occurs in the grid and the main supply is cut off, the local generators are used to keep in operation the critical consumers until the safe shutdown of the entire process can be achieved. In these scenarios, in order to keep the balance between local generation and consumption, the classic approach is to use under-frequency load-shedding schemes. This paper proposes a new load-shedding algorithm that uses particle swarm optimization and forecasted load data to provide a low-cost alternative to under-frequency methods. The algorithm is built using the requirements and input data provided by a real industrial site from Romania. The results show that local generation and critical consumption can be kept in stable operation for the time interval required for the safe shutdown of the running processes.

Keywords: load shedding; industrial critical loads; particle swarm optimization; multistage algorithm (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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