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In the context of building a new type of power system with new energy as the main body, it is required that thermal power units undertake more peak shaving tasks, and coupling heat storage tanks is one of the effective ways for units to improve the peak shaving capability. In order to solve the operation scheduling problem of heat storage tanks and units in the context of peak shaving auxiliary service market, thermal system simulation is conducted on combined heat and power (CHP) units to obtain coal consumption and operational safety zones that reflect the actual operating conditions of the units. After that, an optimization model for the CHP system coupled with heat storage tank is established. Aiming to maximize the net profit of the system, this article intelligently optimizes the hourly operation scheduling of a certain CHP and heat storage tank. The results show that, the heat storage process of the thermal storage tank occurs during the electricity price period, and the heat release process varies depending on the heating load. During the high cold period with high heat load, heat is only released during the electricity price valley period, while during the early and late stages with low heat load, heat is released during the valley and peak periods. The net income of the system decreases with the increase of heating load. Running the entire heating season with the optimized scheduling in this article can increase revenue by 21.13 million yuan per year, with a static investment payback period of 5.22 years.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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