多场协同的综合能源系统节能改造效益评价探讨

Discussion on the Evaluation of the Benefits of Energy-Saving Transformation of Multi-Field Synergistic Integrated Energy System

摘要: 在能源系统低碳化转型背景下，本文以A公司为例，基于多场协同理论框架，探讨多场耦合调节变频技术驱动制冷、热水、采暖系统的跨场域节能改造，并通过构建热力场、流体场与电力场的动态耦合模型，结合智能群控与多场耦合调节变频设备，优化多物理场能量匹配。经过本文提出的多场协同多场耦合调节变频技术改造，制冷系统散热效率提升了20%，热水系统废热利用率达75%，采暖系统能效比提高至3.5，全局综合节能率达30%，年运行成本降低476万元。能耗与经济分析表明，在同等供能前提下，多场耦合调节变频技术通过跨场域协同显著降低能耗冗余，验证了“场域解耦、能耗协同”的有效性。本研究为工业与建筑领域节能改造提供了理论支撑与实践范例。

Abstract: In the context of the low-carbon transformation of the energy system, this paper takes Company A as an example, based on the theoretical framework of multi-field synergy, discusses the cross-field energy-saving transformation of refrigeration, hot water and heating systems driven by multi-field coupling variable frequency conversion technology, and optimizes the multi-physics energy matching by constructing a dynamic coupling model of thermal field, fluid field and electric field, combined with intelligent group control and multi-field coupling to regulate frequency conversion equipment. After the transformation of the multi-field collaborative multi-field coupling adjustment and frequency conversion technology proposed in this paper, the heat dissipation efficiency of the refrigeration system is increased by 20%, the waste heat utilization rate of the hot water system is increased by 75%, the energy efficiency ratio of the heating system is increased to 3.5, the global comprehensive energy saving rate is 30%, and the annual operating cost is reduced by 4.76 million yuan. The analysis of energy consumption and economy shows that under the premise of the same energy supply, the multi-field coupling adjustment frequency conversion technology significantly reduces the energy consumption redundancy through cross-field coordination, which verifies the effectiveness of “field decoupling and energy consumption coordination”. This study provides theoretical support and practical examples for energy-saving renovation in the field of industry and construction.