Floating Wave Energy Generator with Pendulum Tilt Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional wave power generation devices face challenges in stabilizing electricity production due to irregular horizontal and vertical motions caused by waves, leading to inefficient energy conversion and fluctuating device positions and attitudes in water, which hinder efficient power generation.

Innovation Solution

A renewable energy generator system featuring a floating housing with a pendulum mechanism and motor control system that adjusts the tilt of the generator to optimize energy conversion based on wave intensity, speed, and frequency, utilizing a pendulum rotation shaft, main motor, gear unit, and controller to convert kinetic energy into electrical energy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the wave power device floats freely in water, then it can respond to wave movements, but its position and attitude fluctuate causing inefficient power generation

Engineering Contradiction:
Improveresponse to wave movementsVSAvoidposition and attitude stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent employs a counterweight mechanism that offsets the fluctuating forces from wave movements. By introducing a counterbalancing mass or force system, the device maintains a stable position and attitude while still responding to waves for energy generation, resolving the contradiction between adaptability and stability.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The device dynamically adjusts its physical parameters (such as mass distribution, buoyancy, or structural configuration) in response to wave conditions. This allows the device to maintain optimal position and attitude stability while continuing to harness wave energy, balancing adaptability with reliability.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If the device structure is simplified for easier manufacture, then manufacturing cost decreases, but stability in water fluctuates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidwater stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The device is divided into modular segments or components that can be manufactured separately using simple processes, then assembled to achieve the required stability. This segmentation allows ease of manufacture while the coordinated arrangement of segments provides the necessary water stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different structural qualities to different parts of the device. Critical areas requiring stability are reinforced with specific structural features, while other areas maintain simplicity for ease of manufacture. This localized differentiation resolves the contradiction between manufacturing simplicity and overall stability.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively adjusts its tilt to enhance electricity generation efficiency, stabilizing power production by accounting for wave dynamics, thereby improving the overall efficiency of wave energy conversion.

Implementation Method 1

a main motor configured to convert kinetic energy of the pendulum into electrical energy

Methodology Applied
Scientific EffectKinetic energy conversion:

Implementation Method 2

a housing configured to float in a body of water

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 3

a pendulum configured to move inside the inner housing

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentUS11585316B1Renewable energy generation device and control method therefor
Publication Date: 2023.02.21 HYUNDAI MOTOR CO LTD
  • US11585316B1 patent drawing
  • US11585316B1 patent drawing
  • US11585316B1 patent drawing

AI summary

The present disclosure provides a renewable energy generator including a housing formed to float in a body of water, a main generator unit, frame(s) fixed internally of the housing at intervals, a main rotating shaft for linking the main generator unit rotatably to the frame(s), and a controller for operating the pendulum by driving the main motor, and controlling the main generator unit to cause the housing to behave due to the pendulum operation. The main generator unit includes an inner housing, a pendulum moving inside the inner housing, a pendulum rotation shaft vertically connected to the pendulum and fixed to the inner housing, a main motor for converting kinetic energy of the pendulum into electrical energy, and a gear unit linked to the pendulum rotation shaft and transmitting the kinetic energy of the pendulum to the main motor.