Electric ship charging technology

1. Basic principles and types of charging technology

(1) Basic principles

The core of new energy ship charging technology is to convert shore-based power or renewable energy (such as solar energy, wind energy, etc.) into the electrical energy required by the ship's battery pack. The charging process usually involves the conversion and transmission of electrical energy to ensure that the electrical energy is stored in the battery in an appropriate form and rate. The basic principles of charging technology include:

Electric energy conversion: converting AC) to DC to match the charging requirements of the battery.

Electric energy transmission: transmitting electrical energy from the shore-based power supply to the ship's battery pack through cables, charging plugs and other equipment.

Charging control: controlling the charging process through the charging management system (CMS) to ensure that the battery is charged safely and efficiently.

(2) Types of charging technologies

New energy ship charging technologies are mainly divided into the following types:

① Wired charging technology

AC charging: Using AC power to charge ship batteries, it is usually necessary to convert AC power into DC power through a charging module.

DC charging: Directly using DC power to charge ship batteries, with fast charging speed, suitable for high-power charging.

② Wireless charging technology

Inductive charging: Through the principle of electromagnetic induction, electrical energy is transmitted from the charging base station to the ship battery pack. Resonant charging: Using the principle of resonance to achieve long-distance wireless charging.

③ Renewable energy charging technology

Solar charging: Using solar panels to convert solar energy into electrical energy to charge ship batteries.

Wind charging: Using wind turbines to convert wind energy into electrical energy to charge ship batteries.

2. Composition and working principle of charging equipment

(1) Composition of charging equipment

New energy ship charging equipment mainly consists of the following parts:

Charging plug and socket: used to connect shore-based power supply and ship battery pack to ensure the transmission of electric energy. Charging cable: used to transmit electric energy, usually with high conductivity and durability.

Charging module: including charging controller, power converter, etc., responsible for converting shore-based power supply into a form of electric energy suitable for ship batteries.

Charging management system (CMS): monitors and controls the charging process to ensure that the battery is charged safely and efficiently.

Safety protection device: including overcurrent protection, overvoltage protection, overtemperature protection, etc., to ensure the safety of the charging process.

(2) Working principle of charging equipment

Energy conversion: The charging module converts the shore-based power supply (usually AC) into DC to match the charging requirements of the ship battery.

Energy transmission: The converted electric energy is transmitted to the ship battery pack through the charging cable.

Charging control: The charging management system (CMS) monitors the status of the battery (such as voltage, current, temperature, etc.) and controls the charging process according to the preset charging strategy.

Safety protection: The safety protection device monitors abnormal conditions during charging in real time, such as over-current, over-voltage, over-temperature, etc., and takes corresponding protection measures.

(3) Development trend of charging technology

① Improve charging efficiency

High-efficiency charging equipment: Develop high-efficiency charging equipment to reduce energy loss during power conversion and transmission.

Intelligent charging management: Adopt intelligent charging management system to optimize the charging process according to battery status and environmental conditions and improve charging efficiency.

② Shorten charging time

High-power charging technology: Develop high-power charging equipment to increase charging rate and shorten charging time.

Fast charging standard: Develop unified fast charging standard to ensure compatibility between different equipment and systems.

③ Reduce charging cost

Cost optimization: Reduce the manufacturing cost of charging equipment through technological innovation and large-scale production.

Operation cost: Optimize the layout of charging network and reduce the operation and maintenance cost of charging facilities.

④ Improve charging safety

Safety standards: Develop strict charging safety standards to ensure the safety of the charging process.

Safety technology: Develop advanced safety protection technologies, such as over-current protection, over-voltage protection, over-temperature protection, etc., to prevent safety accidents during charging.

⑤ Promote the standardization and regularization of charging technology

International standards: Promote the formulation and implementation of international charging standards and promote the interoperability of charging facilities between different countries and regions.

Industry norms: Formulate industry norms to guide the design, manufacture and operation of charging equipment and ensure the healthy development of charging technology.

Bosa Energy

Bosa Energy with 150GWH capacity and over 400,000 electric bus/utility vehicle application experience we are listing first 5 in China power battery industry. We cooperate with Yutong/Geely/Damiler etc.

We are also offering Container ESS systems and delivered 6GWh in 2024(=75,000 Model3 with 80kWh battery). In local market, we are offering OEM service for Changan, CALB, National grid, Ping Gao Electric , Xuji electronics, Ruineng electronics, they are our main Container ESS suppliers in China Market.

We are the most professional supplier of marine lithium batteries in China, and our export volume of marine batteries consistently ranks among the top three in China; We are also the top 1 exporter of lithium battery modules in China, specializing in providing various lithium battery module solutions.

For excellent quality and performance our products are popular in more than 30 countries in the world. We also have established warehouse in Germany and Netherlands to provide safety stock timely delivery for our customers.

l Customized and Flexible

l High Delivery capacity

l Wide Applications

l Rich experience on Lithium battery pack