System and method for controlling condensation pressure

The invention discloses a system and method for controlling condensation pressure. At least two exhaust pressure adjusting assemblies are adopted, and comprise first condensation fans, first air valves, second condensation fans and second air valves, wherein the first air valves correspond to the first condensation fans, the second air valves correspond to the second condensation fans, opening or closing of at least two exhaust pressure adjusting assemblies is adjusted according to exhaust pressure data detected by an exhaust pressure sensor, the condensation fans and the air valves are started when exhaust pressure is high, through arrangement of multi-stage adjustment, stable adjustment on the exhaust pressure is realized, the condensation pressure can be effectively controlled along with load changing, and the continuous, stable and reliable operation of a refrigerating unit under the condition of low ambient temperature is realized. 本发明的冷凝压力控制系统及方法，采用至少两组排气压力调节组件，至少两组排气压力调节组件包括第一冷凝风机、与所述第一冷凝风机对应的第一风阀、第二冷凝