中国电力2026，Vol.59Issue(1)：76-83,8.DOI:10.11930/j.issn.1004-9649.202505035
630 MW超临界供汽热电联产机组收益计算
Revenue calculation for 630 MW supercritical steam-supply combined heat and power unit
摘要
Abstract
This study investigates the industrial steam extraction heating benefits of 630 MW supercritical combined heat and power(CHP)units.Combined with the electricity spot market,it proposes a heating benefit analysis framework coupled with electricity market prices.Using the power generation loss compensation method,a heating revenue calculation model is established that comprehensively considers steam sales revenue,power generation loss,makeup water cost,and fixed asset depreciation of heating systems.Electricity price sensitivity analysis is introduced to accommodate spot market volatility.Validated through EBSILON software modeling(error＜1%),the study analyzes the heating revenue patterns under different extraction steam flows(97.2～561.6 t/h).The results demonstrate that the heating economics exhibit dynamic response characteristics in electricity market environ-ments,with main steam flow,extraction steam flow,electricity price fluctuations,and thermal pricing policies forming a four-dimensional influencing factor system.Analysis of typical spot market scenarios indicates that when day-ahead market clearing prices exceed 0.428 3 CNY/(kW·h),the units shall prioritize switching to pure condensation mode.During low-price periods in real-time markets,heating load can be increased up to 1 950 t/h main steam flow conditions,achieving unit heating revenue of 35.80 CNY/t-steam.Sensitivity analysis reveals asymmetric price transmission mechanisms.The proposed model provides a quantitative decision-making tool for CHP units participating in day-ahead and real-time bidding and formulating heat-electricity coordinated pricing strategies in spot market environments.关键词
超临界机组/补偿发电功率损失/供汽收益/现货市场Key words
supercritical units/power generation loss compensation/steam supply revenue/spot market引用本文复制引用
DING Yi,WANG Chunliang,XI Yuewei,HU Wenyan,YANG Zhiping,GUO Xiyan..630 MW超临界供汽热电联产机组收益计算[J].中国电力,2026,59(1):76-83,8.基金项目
国家自然科学基金创新研究群体科学基金资助项目(51821004). This work is supported by the Funds for Creative Research Groups of the National Natural Science Foundation of China(No.51821004). （51821004）
