暖通空调>期刊目次>2020年>第12期

考虑碳税的大型CCHP系统经济运行优化研究*

Economic operation optimization of large CCHP systems considering carbon tax

黄海晔[1] 周骏[1] 施胜波[1] 齐家业[2] 林萌雅[2] 高文忠[2]
[1]国网上海市电力公司闸北发电厂 [2]上海海事大学

摘要:

针对大型CCHP系统构建了考虑碳税的经济运行优化模型。采用改进粒子群算法对上海某大型CCHP系统优化模型进行求解,分别获得了夏季和冬季典型日设计负荷下的优化运行策略,得到了碳税变化对其经济性和碳排放量的影响。结果显示:夏季因碳税价格、峰谷平电价及天然气价格影响,CCHP系统需要根据价格变化反复调整运行策略才能实现经济性最优运行,现有控制系统难以实现;碳税水平是决定运营方盈利和碳排放量的关键因素,在我国现有能源价格体系下,碳税约为20美元/t时,可大幅减少碳排放量,并保证企业具有相当的盈利能力;冬季运行时碳税价格提高会显著降低供能企业的盈利,却基本不能减少CCHP系统的碳排放量。

关键词:冷热电三联供,碳税,经济运行策略,碳排放,改进粒子群算法

Abstract:

Constructs an economic operation model considering carbon tax for large CCHP systems. Analyses a large CCHP system in Shanghai by using the improved particle swarm optimization algorithm, obtains optimal operation strategies under the design load of typical days in summer and winter respectively, and gains the impact of carbon tax changes on its economy and carbon emissions. The results show that due to the impact of carbon tax prices, peak-valley electricity prices and natural gas prices in summer, the CCHP system needs to adjust the operation strategy according to price changes to achieve optimal economic operation, but the existing control system is difficult to achieve. The carbon tax is a key factor in determining the profitability and carbon emissions of operators. Under the current energy price system in China, when the carbon tax is about 20 $/t, it can significantly reduce carbon emissions and ensure that enterprises have considerable profitability. The increase of carbon tax prices in winter will significantly reduce the profitability of energy supply enterprises, but basically can not reduce the carbon emission of the CCHP system.

Keywords:combined cooling heating and power (CCHP), carbon tax, economic operation strategy, carbon emission, improved particle swarm optimization algorithm

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