Hybrid Wind Tidal Power System with Flywheel Storage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional tidal power generation systems experience energy loss due to intermediate energy changes and are inefficient in environments with variable wind conditions, leading to economic inefficiencies in power generation.
Innovation Solution
A system integrating offshore wind farms and tidal current farms using a flywheel energy storage system with a permanent magnet generator, connected to a hybrid renewable energy system, which includes configurations with variable frequency transformers and high-voltage DC transmission systems to stabilize and regulate power transmission, utilizing PID controllers for stability and damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional tidal power generation systems use intermediate energy changes (mechanical to electrical conversion), then power generation is achieved, but energy loss increases
Solution Approach 1:
The patent extracts and eliminates the intermediate energy conversion stage from the power generation system. By using a direct-drive permanent magnet generator connected directly to the tidal current turbine, the system removes the mechanical transmission components (gearbox, coupling) that cause energy loss, achieving direct conversion of tidal current kinetic energy to electrical energy.
Solution Approach 2:
The patent replaces the traditional mechanical transmission system with an electromagnetic direct-drive system. The permanent magnet generator converts mechanical energy directly to electrical energy without mechanical intermediaries, substituting the mechanical-to-mechanical-to-electrical conversion path with a direct electromagnetic conversion path that reduces energy loss.
2Device complexity
If tidal power generation systems operate independently without wind power integration, then system simplicity is maintained, but economic efficiency decreases in variable wind conditions
Solution Approach 1:
The patent merges two independent renewable energy systems (tidal current power generation and wind power generation) into a hybrid integrated system. The tidal current turbine and wind turbine are connected to a common electrical grid through synchronized control, allowing the systems to complement each other - tidal energy provides base load while wind energy supplements during high-wind periods, improving overall economic efficiency.
Solution Approach 2:
The patent creates a multi-functional power generation system that can operate in multiple modes: tidal-only generation, wind-only generation, and hybrid generation. The system adapts its operation based on environmental conditions (tide conditions and wind speed), providing universal functionality that maximizes economic efficiency across varying operational scenarios.
3Reliability
If wind power generation is used to supplement tidal power, then power supply stability improves in insufficient wind conditions, but system complexity increases
Solution Approach 1:
The patent implements feedback control mechanisms to monitor and regulate the hybrid power generation system. Sensors detect wind speed, tidal current speed, and electrical output parameters, feeding this information to a control system that adjusts the operation of both turbines and the synchronization of their electrical outputs, maintaining power supply stability while managing system complexity through intelligent control.
Solution Approach 2:
The patent introduces an electrical synchronization system as an intermediary between the tidal current generator and wind turbine generator. This intermediary component coordinates the electrical outputs of both generators, ensuring they operate in phase and can be seamlessly integrated into the power grid, thereby maintaining stability while managing the complexity of the hybrid system.
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 enhances electric energy production by integrating wind and tidal power, providing stable power supply even in conditions with insufficient wind, reducing energy losses and maintaining system stability under disturbances.
Implementation Method 1
a tidal power generation device generating a second voltage
Implementation Method 2
A system integrating offshore wind farms and tidal current farms using a flywheel energy storage system with a permanent magnet generator
Implementation Method 3
a wind power generation device generating a first voltage
Data Source
AI summary
A system integrating a tidal power generation device and a wind power generation device and a method thereof are provided. The system includes a wind power generation device, a tidal power generation device and an integration device. The wind power generation device generates a first voltage, the tidal power generation device generates a second voltage, and the integration device integrates the first and the second voltages for a further use.