Energy storage system and method of offshore wind generating set

• Main Authors: YANG ZHIQIAN, ZHOU JIANHU, LYU LIANGNIAN
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention relates to an energy storage system and method of an offshore wind generating set. The energy storage system comprises a first storage device and an energy storage device. The first storage device is a box body with a containing cavity, is far away from the bottom of a tower drum of the offshore wind generating set and is arranged at a preset height away from the sea level. The energy storage device comprises a water pump and a motor in transmission connection with the water pump, and the water pump communicates with the first storage device through a first pipeline and further communicates with seawater through a second pipeline. The motor is connected with the power grid and used for driving the water pump to pump the seawater into the first storage device. Or, when the first storage device releases the seawater, the water pump is pushed to operate and drive the motor to generate electricity at the same time, and electric energy is transmitted to the power grid. According to the energy storage