The invention relates to a distributed energy-saving type active and passive composite heave compensation system and a working method thereof, and belongs to the fields of ocean engineering technologyand equipment. The system comprises an energy-saving type active compensation system and a hanging type passive compensator; the energy-saving type active compensation system comprises a secondary adjusting compensation system and an active compensation hydraulic cylinder, a piston rod of the active compensation hydraulic cylinder is connected with a pulley, a cable storage winch is connected with one end of a cable, the other end sequentially passes through the pulley, a tension reducing winch and a fixed pulley to be connected with the hanging type passive compensator, a piston rod of the hanging type passive compensator is connected with a load, and a tension sensor is connected to the cable and located between the fixed pulley and the hanging type passive compensator; and a motion reference unit, a displacement sensor A, the tension sensor and the secondary adjusting compensation system are connected with a controller. According to the distributed energy-saving type active and passive composite heave compensation system and the working method thereof, active and passive heave compensation modes are combined, energy consumption is reduced on the premise of higher compensation accuracy, efficiency and reliability of the system are improved, and the system is applicable to a wider range of sea conditions.

本发明涉及一种分布式节能型主被动复合升沉补偿系统及其工作方法，属于海洋工程技术及装备领域，包括节能型主动补偿系统和吊挂式被动补偿器；节能型主动补偿系统包括二次调节补偿系统和主动补偿液压缸，主动补偿液压缸的活塞杆连接一滑轮，储缆绞车连接缆绳的一端，另一端依次经滑轮、减张力绞车、定滑轮连接吊挂式被动补偿器，吊挂式被动补偿器的活塞杆连接负载，缆绳上在定滑轮与吊挂式被动补偿器之间还连接有张力传感器；运动参考单元、位移传感器A、张力传感器和二次调节补偿系统均与控制器连接。本发明结合了主被动升沉补偿方式，在更高补偿精度的前提下减少了能耗，提高了系统效率及可靠性，适用的海况范围更广。