Energy Storage Converter Boost Integrated Machine: the engine of energy transformation

Based on the design concept of modular and integral, the booster converter integrates energy storage converter, boost transformer, high and low voltage distribution unit, communication unit, etc. into a mobile preassembled cabinet, which can meet the needs of rapid construction of large-scale energy storage stations. From the development perspective of an integrated machine, it improves not only the energy storage and conversion efficiency but also provides convenient and reliable solutions for different energy storage application scenarios. Be it on the power generation side, grid side, or user side, converter boosters use their unique advantages to contribute towards a smarter and greener energy future.

Functional Characteristics

1. High Integration:

The booster converter with efficient and reasonable layout can improve the space utilization rate, integrate more key components in a very limited space and integrate the secondary circuit, realize the unified measurement, protection and communication functions, to simplify the system structure. It will also improve the system’s reliability and stability. It perfectly integrates multiple functions into one, just like a carefully built energy Rubik’s cube, bringing new solutions for energy storage and conversion.

2. Precise Intelligence:

Support dual network ports in line with IEC 61850 protocol; Integrated Data Acquisition and Optical Fiber Ring Network, Intelligent Operation Management; Support High/Low Voltage Crossing Power Grid Adaptability.

3. Flexible configuration:

Support multiple parallel, with VSG, PQ, VF, black start and other functions; The 1500V system has a wide DC voltage range and flexible DC terminal configuration, which is suitable for various energy storage application scenarios.

It supports multiple units in parallel, and can flexibly expand the system capacity according to actual requirements. At the same time, it has VSG, PQ, VF, black startup and other functions, providing a rich choice for different application scenarios. The wide DC voltage range and flexible DC terminal configuration of the 1500V system bring great convenience to users.

Application scenario

1. The newly developed energy storage station totally meets the modular, integrated, and convenient requirements for large-scale energy storage stations. Energy storage module, booster transformer, energy storage converter, high and low voltage distribution unit, communication unit, etc., are pre-installed inside the mobile cabinet to achieve virtual synchronization function of new energy rapid construction, regional autonomy.

It is in a core place that meets the needs of modularization, integration, and convenience brought by large energy storage stations. Moreover, the machine also offers virtual synchronization functions of new energy regional autonomy, hence providing strong assurances for energy realization in efficiency and stability.

2. Extensively applied on the power generation side, power grid side, user side, micro-grid four fields.

A booster integrated machine of an energy storage converter could realize efficient conversion and storage of electric energy on the power generation side, and provide stable power output to a power plant. The unstable renewable energy can be transformed into stable direct current, such as solar energy and wind energy, and the voltage is connected to the grid via a booster transformer to improve energy utilization efficiency.

The integrated machine can provide the functions of peak load shifting and valley filling in the power grid side. During the low period of electricity consumption, the excess power will be stored; during the peak of power consumtion, the stored electric energy is released to relieve the pressure of the power grid and improve the stability and reliability of the power grid. In addition, it can also contribute to the frequency regulation of the power grid and voltage regulation for improving the power quality of the latter.

On the user side, it can provide users with backup power to enhance the reliability of power supply. In case of a power outage, it can switch quickly to off-grid operation mode and provide users with continuous power supply. Meanwhile, it can assist users in energy management and reduction of electricity cost.

In the microgrid, the integrated machine is a core piece of equipment. With such equipment in place, microgrids will be able to achieve power balance and stable operation, as well as improve their autonomy. Working together with other distributed resources-such as solar PV and wind-it provides a reliable power guarantee for the microgrid.

Differences from Other Equipment

Generally speaking, energy storage booster is used in the occasion of large power generation and electrification. The main function of the inverter is to change direct current into alternating current for supplying the power grid. However, the energy storage bidirectional converter of the converter has a more comprehensive and diversified function, including bidirectional transformation of electric energy, energy storage management, but also has various functions such as charging and discharging, renewable energy grid-connection, emergency power supply, micro-grid management, electric vehicle charging, smart grid support, and so on.

Advantages over traditional energy storage devices: higher conversion efficiency, lower harmonic distortion, quicker response speed, etc.

 Conversion Efficiency: The maximum efficiency in each type of converter booster is 99.03%, which has a higher conversion efficiency compared with traditional energy storage equipment. This is because of its series “transformation” and “enhancement” design, with an efficient and rational layout, advanced technology, etc.

◦ Harmonic distortion: The THDi for rated output power at the converter booster is less than 3% and the voltage distortion, THDu is less than 1.5% (linear load). Traditional energy storage devices may have poor harmonic distortion performance, and lowering harmonic distortion can reduce interference to the grid and improve power quality.

Response speed: The grid has high and low voltage crossing, and the converter booster has a highly adaptive ability, that is to say, when there is voltage fluctuations in the grid, it can respond rapidly and operate stably. The response speed of the traditional energy storage equipment is relatively slow, and it is difficult to cope with the complex grid environment.

Due to wide application in the field of energy storage, artificial intelligence technology can foreseeably combine the converter booster all-in-one machine with the intelligent energy management system to further improve efficiency and reliability. For example, real-time equipment status monitoring and failure prediction using machine learning algorithms, optimizing the usage of energy storage with different algorithms considering market prices and energy demand toward more intelligent energy management.

In the future, market demand will also increase for a Converter Booster Machine. As demand for renewable energy continues to increase globally, the importance of energy storage technology will be increasingly vital to solve energy problems and promote energy efficiency. It will continue to expand into the core equipment of an energy storage system in the application fields of renewable energies like solar energy and wind energy, and electric vehicles.