Abstract
The research model presented in this article, of control room operators’ work activities in an electric power system, includes an analysis of the main control room’s characteristics, the performance of the operators, and the influence of the environment on the operators’ efficiency. For the purpose of group ranking the most important aspects describing the risk factors, fuzzy numbers are used. The influence of all the experts on the final decision is based on their previous experience. Human system, control information system, and supporting system elements are used as assessment criteria. In the analysed control room, the major impact on the operators’ efficiency is the causes and effects of stress and the presentation of information. Display panels and control desks are crucial aspects of the control information system, as they affect the efficient presentation of information. In relation to the indoor environment, lighting conditions are identified as the most important. Based on the results obtained, we propose changes that decrease the risks by enabling better work positions for operators and the presentation of information on display panels and graphic screens.
Highlights
The efficient and safe distribution of electric power needs effective monitoring and responsiveness
This paper presents the analysis of the control rooms (CRs) of the Electric Power Company of Serbia
The control room key performance indicators to be assessed were selected by six experts from the following fields: ergonomics, human reliability assessment, risk assessment, electric power systems, and mathematical modelling
Summary
The efficient and safe distribution of electric power needs effective monitoring and responsiveness. The speed and precision of the operator’s decision-making are mainly influenced by the quality and completeness of the information that is received In both modern and conventional electric power control rooms (CRs), the functions, architecture, indoor environment, and applied technologies are identified as the most important properties. Functional efficiency and the harmonisation of control information systems with the capabilities of the operators in the CRs are achieved at three different levels — perception, data processing, and action. By achieving such harmonisation, an operator can efficiently solve decision-making, diagnosis, and planning problems. The humanisation of the working environment increases an operator’s overall working abilities, which is especially important during shift work [6]
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