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分布式冷热电联供(combined cooling heating and power,CCHP)负荷具有随机模糊性且冷热电耦合的特性,多CCHP联供区域与电网的交换功率会影响电力系统运行。为尽可能减少其不利影响,考虑冷热电负荷随机模糊性及耦合,首先建立不同耦合策略下单个CCHP系统交换功率模型,然后在考虑区域内各CCHP子系统间功率平衡的基础上,结合随机模糊模拟进行CCHP区域平衡,进而获得CCHP联供区域与电网交换功率。通过湖南省某市4个CCHP项目实际数据仿真验证了模型和算法的有效性。
The combined cooling, heating and power (CCHP) load has the property of random fuzziness and thermal-electric coupling, and the switching power of multiple CCHP connected areas and the power grid will affect the power system operation. In order to reduce its adverse effects as much as possible, considering the random fuzziness and coupling of thermal and electric load, firstly, the power model of single CCHP system under different coupling strategies is established. Then, considering the power balance among CCHP subsystems in the region, Fuzzy simulation for CCHP area balance, and then get CCHP co-supply area and grid exchange power. The simulation results of four CCHP projects in a certain city of Hunan Province validate the effectiveness of the model and the algorithm.