Due to the complexity of equipment components in integrated energy systems, which involve multiple forms of energy such as electricity, gas, heat, and cooling, a vast and heterogeneous amount of data is generated during interconnection and transmission processes, making it difficult to effectively reflect the characteristics of integrated energy systems. In light of this, this paper adopts integrated energy system basic units as the research foundation. Based on statistical clustering analysis, typical basic unit devices of integrated energy systems are carefully selected. Characteristic data of these typical basic unit devices are extracted to represent the characteristics of basic unit in integrated energy systems. Various models of basic unit in integrated energy systems are established based on the energy and quality attributes of these basic unit. Through case studies, the rationality and applicability of the proposed models for various types of basic unit in integrated energy systems are validated.