Operation mode selection algorithm development of a wind-diesel power plant supply complex

Abstract

The power supply system is affected by external disturbances, so it should be stable and operate normally in compliance with power quality standards. The power supply system goes into abnormal modes operation when, after a short-term failure or disturbance, it does not restore normal mode. The electrical complex, which includes a wind power plant, as well as a battery and a diesel generator connected in parallel, is able to provide reliable power supply to consumers which meets the power quality indicators. The article develops an algorithm that is implemented by an automatic control system to select the operating mode depending on climatic factors (wind) and the forecast of energy consumption for the day ahead. Forecast data is selected based on the choice of the methods, which will have the smallest forecast error. It is concluded that if the energy consumption forecast data is added to the automatic control system, then it will be possible to increase the efficiency of the power supply complex. In the developed algorithm the verification of normal and abnormal modes of operation is considered based on the stability theory. The criteria for assessing the normal mode of operation are identified, as well as the indicators of the object’s load schedules for assessing the load of power supply sources and the quality standards for power supply to consumers for ranking the load by priority under critical operating conditions and restoring normal operation are considered.

Basic methods of developing an expert system to assess the efficiency of power supply networks

“…When selecting alternatives, we have to consider a large number of conflicting requirements and therefore assess the decision options according to many criteria. A distinguishing feature of the tasks being solved today is their multicriteriality, so decision makers have to assess a large variety of forces, influences, interests, and consequences defining the decision options [15]. It should be noted that losses arising in power lines, lighting losses and internal losses in conductors are not included in the calculations.…”

“…The process of power network system design is rather time-consuming -a good deal of time is required to search for the necessary information, compile reports and analyze them, to review a large number of articles, reference books, calculation methods, lists of electrical equipment, its characteristics, etc. [15].…”

Modeling of the Natural Objects’ Temperature Field Distribution Using a Supercomputer

“…Modern technologies make it possible to combine groups of personal computers into complex computing systems that can significantly increase the speed of calculations and, accordingly, the control module's response time of the nature or intensity of input action changes [19,20]. Until recently, such computer systems were the main means of technical processes' mathematical modeling, including automatic control systems modeling [21,22]. High-performance computing systems based on NVidia graphics cards have appeared on the computer systems market.…”

Assessment of the Impact of Technological Development and Scenario Forecasting of the Sustainable Development of the Fuel and Energy Complex

“…Countries-participants of the global energy market-should not ignore global changes [28]. These include the energy crisis, partially provoked by the accelerated development of re-Energies 2023, 16, 3185 2 of 23 newable energy technologies [29][30][31][32] in countries with an insufficient level of technological development. Under such circumstances, the lack of protection mechanisms in the form of technology might threaten not only energy security [33,34], but also the sustainability of the whole country's economic system [35][36][37].…”