丁历威,吕洪坤,韩高岩,王均,谭韬,郑梦莲
DING Liwei,LYU Hongkun,HAN Gaoyan,WANG Jun,TAN Tao,ZHENG Menglian

• 1:国网浙江省电力有限公司电力科学研究院
• 2:浙江大学能源工程学院

摘要(Abstract)：

在碳达峰、碳中和目标下，以新能源为主体的能源系统峰谷差日益增大，基于冷热电三联供系统的多能互补特性，用户能够通过灵活切换能源来源响应分时电价，实现综合需求响应。面向楼宇中冷、热、电3种需求同时存在的情况，设计余热经济利用和谷电期间原动机停机的综合需求响应策略，探究不同运行策略下冷热电三联供系统的关键设备容量配置优化和成本变化。研究结果表明：余能经济利用策略有效降低系统总运行成本，适用于冷、热、电3种负荷同时存在且天然气供热、电制冷机供冷成本差距较大的场景；谷电停机策略适用于天然气等效发电价格介于峰、谷电价之间且峰谷差较大的场景。
In the context of the ‘carbon peak and carbon neutrality' goals, the peak-valley difference in energy systems, primarily dominated by new energy sources, becomes increasingly pronounced. Leveraging the complementary characteristics of a combined cooling, heat, and power(CCHP) system, users can respond to time-of-use(ToU) tariff by flexibly switching energy sources to meet integrated demand response. Addressing scenarios where buildings simultaneously demand cooling, heat, and power, the study designs an integrated demand response strategy incorporating waste heat utilization and prime mover shutdown during valley periods. The research investigates the optimization of key equipment capacities and cost variations for the CCHP system under different operational strategies. The findings indicate that the strategy of economically utilizing surplus energy effectively reduces the overall system operational costs. This approach is suitable for situations where all three loads(cooling, heat, and power) coexist, especially in scenarios where there is a significant cost disparity between natural gas heating and electric refrigeration. On the other hand, the strategy of shutdown during valley periods is applicable when the equivalent generation cost of natural gas falls between peak and valley electricity prices that vary substantially.

关键词(KeyWords)： 综合需求响应;冷热电三联供;分时电价;余热利用;系统优化
integrated demand response;CCHP;ToU tariff;Waste heat utilization;System optimization

Abstract:

Keywords:

基金项目(Foundation): 国网浙江省电力有限公司科技项目（5211DS20008N）

作者(Author): 丁历威,吕洪坤,韩高岩,王均,谭韬,郑梦莲
DING Liwei,LYU Hongkun,HAN Gaoyan,WANG Jun,TAN Tao,ZHENG Menglian

DOI: 10.19585/j.zjdl.202312014

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