Gasgoo Awards 2023 applicant:8KW Energy storage battery thermal management from Kelvin New Energy Technology Wuxi Co., Ltd.

Product: 8KW Energy storage battery thermal management 

Description

Voltage range:230V/460V±20%, 50/60Hz general Operating range: -30°C-60°C refrigeration, -40°C-80°C communication , Standard communication: CAN2.0/RS-485 , Refrigerant R134a (compatible with R1234yf),  Rated working conditions: inlet air temperature 45 °C, coolant outlet temperature 18 °C,  Parts IP67 protection, IPX6 waterproof,  The unit is C5M level anti-corrosion , Altitude 0-4000m,  UL/CE certification

Unique advantages

1) High efficiency of the whole machine: it adopts various technologies such as full natural cooling technology, hybrid refrigeration technology, optimal control strategy of free cooling and compressor refrigeration, and control strategy of optimizing the optimal efficiency range of compressor; At the ambient temperature in the transition season, the unit can operate in the hybrid refrigeration operation mode of compressor refrigeration and free cooling to meet the cooling load demand; At the ambient temperature below -5°C, the unit can operate in the all-free cooling operation mode to meet the cooling load demand; The adoption of multiple new technologies has greatly optimized the operation efficiency of the whole machine, COP and the comprehensive operation efficiency IPLV of the whole machine. 

2) High reliability design: the refrigerant direct cooling technology is used to cool the compressor drive, and efficient cooling can ensure that the whole machine runs at an ambient temperature of 55°C without unloading and driving without capacity reduction; The compressor is designed with gas separation to avoid the compressor suction and liquid, and ensure the stable and reliable operation of the compressor; The electrical parts are designed with IP67 protection level; The frame of the whole machine meets the requirements of 2440h neutral salt spray test; The O-ring sealing method and the refrigerant pipeline pressure plate connection method with strict compression calculation are adopted, which greatly reduces the risk of unit leakage. 

3) Strict machine verification test: EMC tests in accordance with IEC standards, including electromagnetic radiation disturbance, electrostatic discharge immunity, surge immunity, RF electromagnetic field radiation immunity, RF field induction conducted disturbance immunity, etc., the whole machine can be better applied to various energy storage systems and safe operation; The protection level test, salt spray test, electrical function test, electrical safety test, electrical circuit protection test, mechanical safety test and MAP performance test of the whole machine and full working conditions operation are comprehensive and rigorous test processes, so that the reliability of the product is fully verified. 

4) Lightweight design: the design optimization of the overall frame structure of aviation aluminum sheet metal is used to reduce the amount of materials under the premise of increasing structural strength and frame rigidity. 

5) Intelligent control system design: optimize the efficiency of the operation mode selection control logic, compressor frequency conversion speed regulation and refrigeration system pressure coupling efficient control logic, unit refrigerant circuit and coolant circuit based on temperature, pressure, current, oil supply pressure difference comprehensive safety control protection strategy and PID control logic, so that the operation of the whole machine in the energy storage system is more reliable and efficient.

Application

Electric vehicle charging infrastructure energy storage system, power grid and power plant energy storage system, industrial energy storage system, transmission and distribution energy storage system, residential energy storage system, renewable energy storage system

Prospect

Under the background of global "carbon neutrality", new renewable energy is favored, and the installed capacity of wind and solar is increasing, because wind and solar power generation has indirectness and volatility, energy storage has become the main solution for abandoning wind and light, and it is currently applied on the power generation side, the power grid side and the user side. During the 14th Five-Year Plan period, the National Energy Administration put forward a development target of no less than 30GW in the "Guiding Opinions on Promoting the Development of New Energy Storage", and if this goal is achieved, the new energy storage will reach at least 10 times more growth. At the same time, on June 6, 2022, the National Development and Reform Commission and the National Energy Administration jointly issued the Notice on Further Promoting the Participation of New Energy Storage in the Electricity Market and Dispatching (hereinafter referred to as the "Notice"), which clarifies many key issues such as identity, electricity price, trading mechanism, dispatching and operation mechanism of new energy storage in the participating market, which will have a far-reaching impact on the development of new energy storage in China during the "14th Five-Year Plan" period. With the continuous improvement of the market mechanism and the continuous development and maturity of technology, new energy storage will surely be able to shoulder the great task of achieving the "dual carbon" goal, and China will become the largest market leading the development of global energy storage. In 2025, the global installed capacity of energy storage is expected to reach 362GWh. As a key system to ensure the continuous and safe operation of energy storage systems, thermal management is expected to reach 14.1 billion yuan in 2025. At present, the value of a single system of liquid cooling in energy storage thermal management is higher than that of air cooling system, and there are mature solutions on the market, which is expected to become the mainstream temperature control scheme of energy storage thermal management in the future.