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Battery storage power stations are usually composed of batteries, power conversion systems (inverters), control systems and monitoring equipment. There are a variety of battery types used, including lithium-ion, lead-acid, flow cell batteries, and others, depending on factors such as energy density, cycle life, and cost.
A battery energy storage system (BESS), battery storage power station, battery energy grid storage (BEGS) or battery grid storage is a type of energy storage technology that uses a group of batteries in the grid to store electrical energy.
In addition to these core functions, functions such as anti-backflow protection, support for parallel/off-grid operation, and islanding protection further enhance the reliability and versatility of energy storage power stations.
In addition, the system must hierarchically store data in the database to ensure that the granularity of comprehensive monitoring of the system reaches the minute level. Secondly, effective system control is crucial for battery storage power stations.
Brazil expects to have 1.2 million solar power generation systems in the year 2024. Solar energy has great potential in Brazil, with the country having one of the highest levels of insolation in the world at 4.25 to 6.5 sun hours/day. As of 2019, Brazil generated nearly 45% of its energy, or 83% of its electricity, from renewable sources.
Today, Brazil's distributed installed capacity has surpassed centralized power stations, accounting for 71% of the total installed capacity. The adoption of the distributed generation method has led to the vigorous development of distributed photovoltaic projects in Brazil.
Solar energy has great potential in Brazil, with the country having one of the highest levels of insolation in the world at 4.25 to 6.5 sun hours/day. As of 2019, Brazil generated nearly 45% of its energy, or 83% of its electricity, from renewable sources. For example, 60% of Brazil's electricity generation came from renewable hydropower.
Grid connection queues in Brazil are offering new opportunities for energy storage and hybrid systems and opening new energy business models. Renewable energy companies are adding solar and batteries to their utility-scale wind power sites to use existing power transmission capacity.
Most of the BESS systems are composed of securely sealed battery packs, which are electronically monitored and replaced once their performance falls below a given threshold. Batteries suffer from cycle ageing, or deterioration caused by charge–discharge cycles.
The system is built of two main blocks. The PCS building block, responsible for the main control of the mobile BESS. The nominal power rating of the PCS block is 225 kVA, with a maximum peak power in the peak shaving mode of 275 kW . The second block is the modular battery pack.
These all-in-one BESS systems can be scaled from utility scale to industrial and commercial applications. The environmental control system (ECS) within the container combines the fire and HVAC systems to maintain a stable environment.
This thesis project, carried out at Northvolt Systems, aims to analyze the existing and readily used communication interfaces for a specific set of mobile BESS applications. The analysis is performed by a literature review of typical mobile BESS applications with the identified corresponding communication interfaces.
