The AC/DC integrated uninterruptible power supply system for power supply is a comprehensive integration of AC/DC power supply systems, DC power supply systems, inverter power supply systems, and communication power supply systems. It is designed, produced, and debugged in a unified manner. Through network communication, design optimization, system linkage, Equipment intelligent file management and other methods to achieve integrated power monitoring system, so that the power system network more intelligent, more convenient operation, use more secure, lower maintenance costs, is unattended substation, smart substation network management and The best solution to realize the full-parameter on-line function of the system. It is used as an AC/DC uninterruptible power supply for all power automation systems, motion execution systems and circuit breakers, relays, relays, automatic devices, and signal devices. It is related to the power grid. The safe operation is one of the core equipment for power generation and transmission, and is a new generation of power supply system equipment for power.

Scope of application

It is applicable to AC and DC power supply sites required for power plants, transformer (substation) power stations, substations, industrial and mining enterprises, and other electric power projects.

System Features

● The system integrates advanced power conversion technology, pulse width modulation technology, digital control technology, electromagnetic compatibility technology, power supply drive technology, intelligent charge and discharge technology, redundancy technology and network communication technology. It is a high-tech intelligent station Power Systems.

● Share battery groups, reduce procurement costs, save space, and increase economic efficiency.

●Integrated monitoring system can view the power, switch status, file information, modifiable system parameters, operation mode, and remote control switch of each subsystem in real time. It is easy to manage and maintain at a glance.

● Communication with the host computer through the IEC 61850 protocol greatly improves the integrated automation application management level of the station power supply.

● Intelligent feeder monitoring, can directly monitor the status of each feeder switch.

When the load is short-circuited, it will not shut down and the AC output will not be interrupted.

● There is an isolation transformer between the UPS power supply, inverter power supply, communication power supply and DC power supply system, which will not cause system accident due to grounding.

● Limit the backwash ripple voltage to the DC bus so that the system fully meets the safety specifications of the power system.

● The system configuration is flexible. It can be equipped with a single UPS or inverter cabinet (applicable to substations below 110KV), or two hot backups in series or associated redundancy (applicable to 220KV and above substations or important power projects).

working principle

Two-way power supply is automatically switched to the UPS power supply and charging module. The charging module converts the input AC power into a DC power supply for battery charging, and also powers the closing bus load. In addition, the closing bus powers the control bus load via the buck module. . The DC input and DC/DC power input terminals of the UPS and INV inverters are connected to the brake bus terminal. The output AC220V and DC48V are respectively supplied by the AC load and the communication load. The battery packs are shared. The integrated monitor monitors the entire system operation status centrally. Through the IEC 61850 protocol can communicate with the host computer, can achieve remote management and unattended