基于并联冗余环形补充的超高清播控中心供配电模式设计与实现

Design and Implementation of Power Supply and Distribution Mode for UHD Broadcasting Control Center Based on Parallel Redundancy Annular Complementary

电视技术进入从高清到4K超高清发展浪潮当中,供配电系统为超高清制播提供了重要支撑。本文阐述了针对新建4K超高清播控中心与融媒中心的供配电系统需解决的主要问题,采用了环形对称补充供电模式和干线设计分段扩充方法,既适应了播控技术系统设计变化与高可靠运行需求,也解决了设计与实际建设不同步的问题。该系统经动态性能测试顺利上线,自投入运行以来一直为安全播出提供可靠的基础保障。

Television technology has been upgraded from HD to 4K UHD,and the power supply and distribution system provides important support for UHD production and broadcasting.This paper briefly introduces the main problems that need to be solved when building the power supply and distribution system for the 4K UHD broadcast control center and convergence media center.A method is adopted by an annular symmetric complementary power supply mode and the mainline design with sectional extension.It makes the power supply not only effectively adapting to the design changes of the broadcast and control system and requirement of high reliable operation,but also successfully solving the problems of asynchronous design and actual construction.The system has been successfully launched through dynamic performance testing and has provided a reliable foundation for safe broadcasting since its operation.