HVDC power system (WL standard version)
With the vigorous development of the data center industry worldwide and the rapid growth of social economy, the development and construction of data centers will be at a high speed. As an important part of the country’s new infrastructure, data centers have received strong support from local government departments. Both have brought great advantages to the development of the data center industry. In this context, the data center industry will have a lot of room for development in many cities, and there will be more and more large data centers. Relying on its strong R&D capabilities in power electronic conversion, intelligent connection equipment and power supply systems, Yonglian Technology has independently developed high-voltage DC power supply systems in line with the development trend of the times. The main products include rectifier modules, main control units and sub-monitoring components. Among them, rectifier modules adopt digital control technology, modular design, and have the advantages of high power density and high efficiency. The main control unit relies on the powerful ARM and LINUX technology platform to comprehensively manage the system. It has functions such as intelligent battery control, system WALKIN control, and module automatic sleep. The sub-monitoring realizes real-time monitoring and management of the system, including insulation monitoring, Switch monitoring, battery monitoring, AC and DC information collection, and intelligent analysis and processing of fault data, etc., provide a highly reliable, efficient and intelligent DC power supply solution for the data center.
The rectifier module adopts a fully digital design, with functions such as independent current sharing, address recognition, intelligent protection, fault information management, etc.
The main control unit is based on the ARM hardware platform and the LINUX operating system software platform, and independently researches and develops a general GSP software architecture, and conducts comprehensive information monitoring, intelligent control and information display of the system
The sub-monitoring unit is based on a real-time operating system to quickly collect and process data to ensure the real-time and accuracy of information
Intelligent battery management strategy, using PI control technology and voltage regulation and current limiting dual strategies to improve the dynamic performance of battery management, with equalizing charge, floating charge, nuclear capacity discharge, temperature supplement, capacity measurement, etc., to ensure the reliable operation of the battery. Improved battery life
The insulation monitoring unit can monitor the insulation status of the main circuit and branch circuit in real time, quickly and accurately locate the fault point, and ensure the reliable operation of the system.
It adopts 7-inch and above color LCD display, friendly man-machine interface and easy operation
Intelligent analysis of fault information can accurately locate system faults, and can store 20,000 fault records
High reliability and high security
The system adopts DC levitation power supply, and the rectifier module adopts isolation design, which improves the safety of the system
Redundant design of rectifier module, N+X hot backup
The rectifier module self-current sharing and address recognition technology ensure that the rectifier module can still work normally without the management of the main control unit
The battery is directly hung on the output bus bar, close to the load end, the power system fails, and does not affect the operation of the back-end load equipment
The rectifier module is managed independently, and when the main control unit fails, it is automatically maintained in a floating state to ensure system safety
Use WALKIN system startup technology to suppress the inrush current during system power-on
Real-time monitoring of the insulation degradation status of the system bus and each branch, monitoring the leakage current information of each branch, and timely warning and warning of insulation abnormalities
In the case of system failure, the battery charging action will be automatically exited, the faulty module will be closed in time, and the fault information will be sent to the operation and maintenance center
High efficiency and low cost
Rectifier module efficiency ≥96%
The system is highly integrated, reducing the number of screen cabinets and improving the space utilization of the data center computer room
Adopt leading module sleep management technology to track the highest efficiency point of system operation in real time
The rectifier module adopts PFC power factor correction technology, PF≥0.999, current harmonic THDi≤3%
Compared with traditional UPS solutions, the system cost is reduced by more than 30%