MMR-Integrated Wave Energy Converter

Energy output up 48.53%

Featuring a mechanical motion rectification PTO that converts float reciprocation into unidirectional generator rotation, with adaptive optimal control boosting energy output by 48.53%.

Huang, Yingbo · 78755309 · Jiaxin, Xu · Zhao, Jun · Na, Jing · Li, Guang · Zhao, Jing · Pak Kin, Wong

IEEE Transactions on Energy Conversion 2025

Specifications

Energy output increase

48.53 %

Advantages

Unidirectional rotation stabilizes output

The mechanical motion rectification mechanism converts float reciprocation into unidirectional generator rotation, eliminating reverse torque and speed fluctuations.

Model-free optimal control

Output-feedback and algebraic Riccati equation allow optimal control computation using only system output information, eliminating the need for full state measurements.

Adaptive to unknown dynamics

Extended state observer estimates unknown nonlinear dynamics, and adaptive learning algorithm guarantees convergence of the optimal solution.

Output increase up to 48.53%

Experiments show that the proposed model and control method increase energy output by 48.53%.

Applications

• Marine energy generation：Directly used in wave energy generation to improve conversion efficiency.
• Renewable energy systems：Serves as a component in renewable energy systems to provide stable power.
• Electromechanical energy conversion：Achieves efficient electromechanical energy conversion and optimizes generator operation.