What is a SoC balancing control strategy for energy storage units?

A SOC balancing control strategy for energy storage units with a voltage balance function is proposed. An analysis of SOC trends is carried out in response to the power changing of loads and micro-source. An adaptive virtual resistances algorithm is coordinated with the control strategy of VB to accelerate the balance process.

Can a centralized SoC balancing control strategy be used for hybrid energy storage systems?

proposed a local-distributed and global-decentralized SOC balancing control strategy for hybrid series-parallel energy storage systems, which can offset the SOC of each energy storage unit (ESU) to the same value in a distributed manner. This paper also analyzes the stability of small-signal modeling, which guides parameter design.

What is SoC balancing for capacity inconsistent systems?

SOC balancing for capacity inconsistent systems In a system consists of ESUs with inconsistent capacities, the storage units' target energy no longer equals the average value.

Which SOC unit keeps a maximum charging power during SoC balancing?

More specifically, it shows that the maximum-SOC unit (i.e., unit 1) keeps a maximum discharging power during most of the SOC balancing process. At the end of the SOC balancing process, the minimum-SOC unit (i.e., unit 3) keeps a maximum charging power for a short time.

What is a control strategy for energy storage?

Compared with the traditional control strategy, the proposed control strategy can effectively balance the SOH and SOC of each energy storage unit and keeps the system's overall capacity for a longer period.

How does SoC balancing affect power supply quality?

When VB is performs energy transmission, it changes the SOC deviation and increase the bus voltage unbalance, affecting the power supply quality of the bipolar DC microgrid. The SOC balancing power bridge plays a critical role in controlling the direction and duration time of SOC balancing for the batteries.