Innovative conceptual design technologies for an energy-efficient diesel-generator power system of a transport vehicle
Keywords:
energy efficiency, power system, electric transport, power supply design, energy, mathematical model, economic model, optimization, electric machines, electric apparatus, mathematical problems in power engineeringSynopsis
The paper investigates innovative conceptual design technologies for an energy-efficient diesel-generator power system of transport vehicles. The relevance of the work lies in the necessity of integrated energy utilization within internal transport networks to minimize energy losses and consequently minimize the cost of generated energy, which forms the foundation for constructing an energy-efficient system. Solving this problem requires the development of control principles that include: creating a mathematical model of the static and dynamic processes within the power system; establishing an economic model for evaluating the cost and efficiency of electricity generation and consumption; and implementing system control aimed at minimizing costs based on the economic assessment. The primary causes of active power losses in the AC electric power system of a transport vehicle are analyzed, particularly system imperfections and reactive power flow, which induces additional losses. Measures for reactive power compensation are proposed as a method to eliminate or reduce these power flows. A system of energy efficiency evaluation criteria is defined, where the main objective is the maximal reduction of the energy loss level. The methodology for enhancing energy efficiency is based on the sequential formation of a set of possible measures, their techno-economic selection, and ranking based on economic feasibility. To forecast losses, a mathematical model of the transport power system has been developed. The model is built on the principles of decomposition and hierarchy, allowing the power system to be broken down into levels (from individual consumers to the generator system busbars) and enabling the calculation of the total effective active energy losses across all sections. This approach ensures the system's adaptation to changing operating conditions, optimizes energy consumption, and improves its overall efficiency.
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