The PCS boosting integrated unit is a device that combines high-voltage switchgear, oil-immersed or dry-type transformers, PCS, monitoring and control systems, UPS backup power, control transformers, measurement and protection components, and indicating instruments within a high-protection-level enclosure. It facilitates the conversion between DC and AC power for energy storage batteries and the AC grid side. It features high efficiency, convenience, reliability, and intelligent management. It is suitable for photovoltaic power generation, energy storage, and similar applications. Commonly used transformer capacities for 35kV and below include 2000kVA, 2500kVA, 3450kVA, 4000kVA, and 5000kVA.