EBSILON 软件在热电联产系统优化中的应用综述

As China’s “Carbon Peaking and Carbon Neutrality”goals progress, the traditional “heat-led”operation mode of combined heat and power systems has been found insufficient to meet the requirements of new power systems for unit flexibility and deep peak-shaving capacity.There is an urgent need to rely on thermoelectric decoupling technologies to enhance high-efficiency heating and load regulation capabilities of the systems.Although research on thermoelectric decoupling has intensified in recent years, most studies focus on single cases or localized technologies with inconsistent system boundaries, parameter settings, and evaluation systems, making it difficult to establish a comparable and generalizable research framework.In this paper, based on the unified thermal modeling framework of EBSILON software, the system configurations, steam extraction methods, and electrothermal coupling mechanisms of typical flexibility retrofitting technologies— including low-temperature heat source extraction, low pressure cylinder near zero output, high back pressure heating, and solar-assisted thermopower— are systematically reviewed. Under a unified modeling logic and evaluation index system, quantitative comparative analyses of thermal efficiency, heating capacity, coal consumption, and off-design performance are conducted for various schemes, and the common laws and differentiated characteristics of different technical pathways are summarized.Furthermore, shortcomings in current research regarding model consistency, working condition coverage, and engineering applicability are identified.Three maj or directions for future thermoelectric decoupling research are proposed: strengthening dynamic behavior simulation and closed-loop control verification; expanding analysis across multiple boundaries for extreme and uncertain scenarios; and developing multi-technology coupling and life-cycle optimization.The findings are intended to provide a structured theoretical basis and methodological support for the quantitative evaluation, engineering selection, and operational optimization of flexibility retrofits of CHP units.