用户侧电力碳排放强度的评估原则与模型

针对电力碳足迹评估问题,借鉴生命周期环境影响的评价思路,提出基于潮流追踪理论的用户侧电力碳排放强度评估模型.模型追溯负荷有功源头,计入传输损耗,按电力来源属性评估其清洁程度,使碳排放分析覆盖电力系统运行的各主要环节,而电力设施建设和燃料供应过程不包含在内.评估结果反映了电力消费的间接环境影响,有利于用户了解并管理其碳足迹,可为用户所应承担的碳排放责任及成本提供合理依据,并有利于提高用户响应清洁能源消纳的积极性.仿真算例验证了上述模型的正确性和有效性.

Principle and Model for Assessment on Carbon Emission Intensity Caused by Electricity at Consumer Side

In allusion to the carbon footprint assessment on electricity,referring to the life cycle assessment methodology for environmental impact assessment a model based on electricity flow tracing theory is proposed.Tracing the sources of active power at load side and reckoning in transmission loss,the proposed model evaluates the carbon emission intensity the cleanliness of electricity according to its source electricity supply according to its source attribute to make carbon emission analysis covering major links in the operation of power system,however the construction of power facilities and the process of fuel supply are not included.The assessment results reflect the indirect environmental effect of electricity consumption and are favorable for consumers to know and manage the carbon footprint of electricity consumption,thus the assessment results can offer rational basis for the carbon emission responsibility that electricity consumers have to take,and also favorable for them to consume clean energy.Finally,the effectiveness and correctness of the proposed method are verified by simulation results of an example system.