在我国，存在着许多不上网的小规模火电机组。将其纳入虚拟电厂的管理，在满足机组耦合条件的同时，深度挖掘多机组耦合调峰潜力，构建虚拟电厂。充分消纳因新能源机组负荷波动带来的电网稳定性隐患。选取案例机组为计算对象，选取机组热电相关参数。采用EBSILON Professional软件对其进行模拟仿真，对多个机组的调峰负荷空间进行评估并进行对比分析。利用Python语言计算多台小型机组深度耦合调峰潜力，用以虚拟电厂负荷调度指令的制定。根据计算结果表明机组经过抽汽改造后，三台机组可以耦合协力达到国家的上网标准。在满足标准的同时，在不同的工况下，多机组耦合可以容纳最多7.36MW的其他能源，最多为热网供热163.66MW。三台机组平均煤耗率最低可达到890.40 kg/kwh。

Many small thermal power units in China are not connected to the grid. It is incorporated into the management of virtual power plant, and the potential of multi-unit coupling peak regulation is deep-ly tapped to build virtual power plant. Fully absorb the hidden dangers of power grid stability caused by load fluctuations of new energy units. The case unit is selected as the calculation object, and the parameters related to the thermoelectricity of the selected unit are taken. EBSILON Professional software was used to simulate it, evaluate the peak load space of multiple units and conduct a com-parative analysis. Python language was used to calculate multiple small units' deep coupling peaking potential for virtual plant load dispatching instructions. According to the calculation results, all three units' primary frequency regulation capacity has increased after the combined primary and secondary frequency regulation modification. After retrofitting, the three units can generally work together to meet the national feed-in tariff, under different working conditions, the multi-unit coupling can accommodate up to 7.36MW of other energy sources, and up to 163.66MW of heat supply for the heat network. The average coal consumption rate of the three units can reach 890.40kg /kwh.

国网河北省电力有限公司科技项目资助（Kj2022-060，虚拟电厂内多类型非统调火电机组调峰能力综合评估与互补聚合分析技术研究）