Two-stage optimal configuration of the integrated energy system in redundancy models
During the development of comprehensive energy system towards complexity and high coupling,the reduced operational reliability of equipment units and high equipment operation and maintenance costs are hard to ignore.In view of the above problems,from the perspective of internal configuration structure optimization,the idea of active and passive redundancy in system engineering was introduced into the integrated energy system to complete the redundancy design of subsystems.A two-stage optimization process was proposed to achieve the logical optimal working condition matching of the redundant equipment and the whole system process.Evaluation indexes were established from economic,energy and environmental aspects,and case studies were conducted for two buildings and four systems based on the honey badger algorithm.The results showed that all three redundancy design options bring significant improvements in system reliability and performance indicators;the active redundancy system had the lowest total annual operating cost,the hot standby system had the best reliability performance,and the cold standby system had the best overall performance.
integrated energy systemreliabilityredundancy designfailure costoptimal configuration
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