Integrated Photovoltaic-Energy Storage-Charging Solution - Shanghai Wenlida Power Electronics Co., Ltd.

Core Equipment: The core equipment of this solution is a high-power bidirectional DC/DC converter. It adopts an all-digital three-level design with a full-load efficiency of up to 95%, which can efficiently realize voltage conversion when photovoltaic electricity is stored in the battery and inversion when the battery discharges to the load or the power grid. In addition, the equipment supports multi-machine parallel operation to meet the needs of high power and large current. It can also accurately realize voltage conversion, adapt to a variety of energy storage batteries, and has a modular design, allowing users to flexibly configure according to their needs.

Operation Modes: It has three operation modes: grid-connected operation, off-grid operation and hybrid operation. In grid-connected operation, the system is connected to the power grid. Surplus solar power can be fed into the grid, and when there is a shortage, electricity can be purchased from the grid. Off-grid operation is suitable for remote areas or grid failures, and can independently supply power to loads. The hybrid operation mode combines the advantages of both, automatically switching according to the actual situation.

Intelligent Management: Equipped with an intelligent energy management system, it can real-time monitor information such as solar power generation, energy storage battery status and load power consumption. Through big data analysis and intelligent algorithms, it reasonably distributes and dispatches energy. For example, it stores electricity during off-peak hours and releases it during peak hours to reduce electricity costs and improve energy utilization efficiency.

Safety Protection: It has overvoltage protection, overcurrent protection, leakage protection and other functions in terms of electrical safety. The energy storage battery pack is equipped with a Battery Management System (BMS), which real-time monitors parameters such as battery voltage, temperature and current. Once abnormal conditions are found, such as battery overheating, overcharging or over-discharging, corresponding protective measures are taken immediately. In addition, the system is also equipped with lightning protection, fire prevention and other safety protection measures.