The composition of the Residential Energy Storage System mainly includes the battery system, the PCS transformer system, the box variable system (if.) EMU composition.

1. Battery system

At present, the energy storage method is mainly divided into three categories: physical energy storage (pumping energy storage, compressed air storage, flywheel energy storage, etc.), chemical energy storage (lead -acid battery, oxidation reduction liquid flow battery, sodium sulfur battery, lithium ion battery, lithium ion battery ) The three categories of electromagnetic energy storage, due to economic and application scenarios, in addition to pumping energy, chemical energy storage is the most widely used. From the perspective of international and domestic markets, there are more lithium ion applications in chemical energy storage. Essence

2. PCS variant system

Energy storage bidirectional variables are referred to as PCS. Energy storage transformers can realize the communication conversion between batteries and grids, complete the two -way energy flow between the two, and use the control strategy to realize the charging and discharge management of the battery system, the network measurement load, the network test load. Power tracking, battery Residential Energy Storage System charging and discharge power control and normal and the island operating method of network measurement voltage control; it has the characteristics of high conversion efficiency, wide voltage input range, fast and somewhat maintenance and convenient maintenance. Protective functions, such as island protection, DC overvoltage protection, and low voltage crossing (optional), etc., to meet the requirements of the system and departure from the network.

3. The box change system (if any)

If you use high -voltage (6KV, 10KV, 20KV, 35KV, etc.), the box changes must be used to complete the boosting task. In order to minimize the electromagnetic interference and circulation of the two roads, the box variable system uses dual division transformers, other parameters, other parameters, and other parameters. There is no difference between wind power and photovoltaic.