A wave energy power generation device, a control method and a system for stable power generation

By designing two energy storage units that work together in the wave energy power generation device, and using a shunt valve to control the hydraulic oil shunt according to the hydraulic oil pressure value, the problem of unstable power output of the generator is solved and a more stable power generation output is achieved.

CN114977450BActive Publication Date: 2025-03-21GUANGDONG POWER GRID CO LTD +1
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Patent Information

Application Number
CN202210758383.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-30
Publication Date
2025-03-21
Estimated Expiration
2042-06-30

AI Technical Summary

Technical Problem

The existing wave energy power generation devices have a positive correlation with the generator output power, resulting in unstable generator output power, which affects the life of the battery pack.

Method used

A wave energy power generation device is designed, including two energy storage units that work together to stabilize the output power. The diverting of the hydraulic oil is controlled by the diverting valve according to the pressure value of the hydraulic oil, so that the first energy storage unit can generate power alone or jointly generate power with the second energy storage unit.

Benefits of technology

The generator is able to generate a smooth power, improve the stability of the output power of the power generation device and the ability to maintain a stable power output.

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Abstract

The present invention discloses a wave energy power generation device, a control method and system for stable power generation, the method comprising: an oil tank, an oil pump unit, a hydraulic cylinder, a diverter valve, a battery pack, a first energy storage unit and a second energy storage unit; the oil tank, the oil pump unit, the hydraulic cylinder and the diverter valve are connected in sequence, the diverter valve is connected to the first energy storage unit and the second energy storage unit respectively, the first energy storage unit and the second energy storage unit are connected to the battery pack respectively, the first energy storage unit and the second energy storage unit are connected to the oil tank respectively; the diverter valve is used to control the first energy storage unit and the second energy storage unit to generate electricity according to the hydraulic pressure value flowing in. The present invention can detect the pressure value of the hydraulic oil, and divert the hydraulic oil to two energy storage units according to the pressure value for separate or coordinated power generation, thereby realizing stable power generation of the generator, so as to improve the stability of the output power of the power generation device and the ability to maintain stable power output.
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