Energy consumption Reduction Technology for Air-cooled Energy Storage System Containers

The lithium battery energy storage system container is one of the electrochemical energy storage technologies. There will be power consumption during the conversion of energy storage and release. How to reduce energy consumption during storage has become one of the major problems in large-scale applications and generalization of energy storage systems.
The operating energy consumption of the air-cooled energy storage system container mainly includes the energy consumption of the air conditioning system, PCS, BMS and auxiliary system. In particular, the energy consumption of the air conditioning system is related to the selection design, operation strategy and duct design, while the energy consumption of the system equipment is mostly related to the device selection and circuit design.
The key to reducing the energy consumption of the container is the air conditioning system and PCS equipment. Some research data indicate that energy consumption from these two sources accounts for about 92% of the energy consumption of the entire container system, with other equipment and line losses accounting for a small fraction, about 8% of the total energy consumption of the container system, and there are many categories. Therefore, research on energy consumption reduction is mainly focused on air conditioning systems and PCS devices. The main ideas for reducing energy consumption are as follows，
Optimizing the selection of key components.
PCS is the core device for power conversion and control, and it is necessary to increase the overall efficiency of PCS devices.
Optimizing the control strategy
When the system is operating at high rate, low rate and in standby state, the air conditioner operation strategy is adjusted accordingly. By changing the set temperature of the air conditioner, it is possible to:
1. Improving the average energy efficiency of air conditioning systems.
2. Reduce heat leakage from the container.
3. Reduce the running time of the air conditioner fan.
Optimizing the air supply duct.
By optimizing the ducts, the air volume of the system can be distributed more evenly, reducing heat return, and reducing the air conditioner operation time.
The key to reducing energy consumption of the air-cooled energy storage system container is the cooling system, and the key to reducing energy consumption of the cooling system is the optimization of the operation strategy. Therefore, the heat dissipation strategy of the energy storage system determines the energy consumption of the entire system, and determines the power efficiency of the entire system.

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Written by Mandy

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