Floating PV Charging Platform With Energy Storage Mode Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing offshore ports face challenges in providing clean electricity to vessels due to limited shore power supply facilities, and electric vessels are constrained by battery power and endurance issues, necessitating the development of offshore floating charging platforms with energy storage units.
Innovation Solution
An offshore floating light energy storage integrated charging station system featuring a triangular floater structure, energy storage units, photovoltaic electricity generation units, and a control unit, with multiple converters and control modes to ensure stable operation and independent power supply or charging capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If shore power supply facilities are installed at large ports, then vessels berthing at the port can receive clean electricity, but vessels waiting offshore cannot be supplied with electricity
Solution Approach 1:
The charging platform transitions from land-based to offshore floating, moving the charging service from the traditional shore dimension to the marine dimension. This allows vessels waiting offshore to access charging services without requiring extensive shore-based facility distribution.
Solution Approach 2:
The floating charging platform serves multiple functions: it acts as both a charging station and a mobile energy storage unit that can service multiple vessels sequentially. The system can charge both electric vessels and provide power to conventional vessels temporarily, enhancing adaptability across different vessel types.
2Object-generated harmful factors
If electric vessels use battery power, then zero emissions and low noise are achieved, but endurance is limited by battery capacity
Solution Approach 1:
The system enables self-charging capability for electric vessels through automated docking and charging processes. The vessels can independently return to the floating platform for recharging, extending their operational endurance without requiring manual intervention or infrastructure changes at ports.
Solution Approach 2:
The energy storage units on the floating platform pre-store large amounts of electrical energy before vessels arrive. This preliminary energy preparation allows for rapid charging of vessels, minimizing downtime and effectively extending the vessels' operational endurance between missions.
3Power
If conventional vessels use fossil fuels, then high power is achieved, but severe pollution is generated
Solution Approach 1:
The system extracts the harmful combustion process from the vessel operation by providing external electrical power supply. Conventional vessels can operate electrically while docked at the floating platform, separating the power generation (on land at the platform) from the vessel operation, thereby eliminating exhaust emissions while maintaining high power output.
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 provides stable electricity supply and charging for vessels, ensuring normal operation even with single unit failures, and optimizes energy usage through various control modes, enhancing the endurance of electric vessels.
Implementation Method 1
The photovoltaic electricity generation unit is used for converting light energy into electrical energy
Implementation Method 2
The energy storage unit is used for storing excess electrical energy generated by the photovoltaic electricity generation unit, and providing a differential power when a power of the photovoltaic electricity generation unit is less than load demand power
Implementation Method 3
the floater includes a tubular shell and foam stuffed in a cavity enclosed by the shell
Data Source
AI summary
Provided are an offshore floating light energy storage integrated charging station system and an operation control method thereof. The system includes a triangular floating floater structure, a control unit mounted on the floating floater structure, an energy storage tank arranged on the floating floater structure, an energy storage unit mounted in the energy storage tank, and a photovoltaic electricity generation unit paved on the energy storage tank. A battery pack in the energy storage tank on each triangular floater is one energy storage unit. The energy storage unit can independently supply electricity or charge the vessels when the photovoltaic electricity generation unit does not generate electricity and the state of charge of the energy storage unit is sufficient. The energy storage unit are controlled to switch between four control modes according to the system's needs to ensure stable operation of the system.