基于实测数据的工业企业光-沼-气-电多能耦合系统综合评价

大工业生产企业能耗体量巨大,是实现碳达峰和碳中和目标的重点领域。基于对传统供能系统和转型后的光-沼-气-电系统的运行监测,分析用户侧负荷特性及典型日冷热电负荷调度特性。研究光沼发电系统的年供能侧数据及重要供能影响因子,构建综合能源系统评价指标体系,协同考虑光沼系统运行状况、经济效益、供能质量、环境效益以及能源效益五方面的因素,评价传统供能系统和光-沼-气-电系统的综合性能。结果表明：以热能需求为主的大工业生产企业,典型日负荷峰值出现在09:00-11:00或14:00-17:00,光-沼-气-电多能源系统可满足工业企业的冷热电需求;光伏系统在非不可抗力时段的平均渗透率低于10%,沼气系统在正常时段储气量占比高于50%,提升了系统供能可靠性。典型算例的评价结果验证了光-沼-气-电多能源系统评价指标体系的可行性和有效性,可为未来面向大工业企业的光-沼-气-电多能源系统的综合利用和协调发展提供借鉴。

Comprehensive Evaluation Study of PV-biogas-gas-electricity Multi-energy Coupling System for Industrial Enterprises Based on Actual Measurement Data

Large industrial producers consume a huge amount of energy and are a key area of focus for achieving peak carbon and carbon neutrality targets. Based on the operational monitoring of the traditional energy supply system and the transformed PV-biogas-gas-electricity system, and the user-side load characteristics and typical daily cooling, heating and the electricity power load scheduling characteristics were analyzed. The annual energy supply data and important energy supply influencing factors of the PV-biogas system were studied, and an evaluation index system for the comprehensive energy system was built, and five factors: PV-biogas system operation status, economic benefits, energy supply quality, environmental benefits and energy efficiency were collaboratively considered, and the comprehensive performance of traditional energy supply system and PV-biogas-gas-electricity system were evaluated. The results show that: Large industrial production enterprises with mainly thermal requirement, typical daily load peaks occur at 09:00-11:00 or 14:00-17:00, the PV-biogas-gas-electricity multi-energy system can meet the cooling, heating and electricity needs of industrial enterprises; The average penetration rate of PV system is less than 10% during non-force majeure hours, and the proportion of gas storage capacity of the biogas system is higher than 50% during normal hours, and the system supply reliability is improved; The evaluation results of a typical case verify the feasibility and validity of the evaluation index system of PV-biogas-gas-electricity multi-energy system, and provide a reference for the comprehensive utilization and coordinated development of PV-biogas-gas-electricity multi-energy system for large industrial enterprises in the future.