一种全分布式变电站自动化通信系统的实现

IMPLEMENTATION OF A SUBSTATION COMMUNICATION SYSTEM BASED ON COMPLETELY DISTRIBUTED STRUCTURE

论述了一种全分布式的变电站自动化通信系统。该通信系统信息传送效率高，由两块智能通信管理卡并行采集就地单元的各种信息，每块通信管理卡分４个通道并行工作；通信系统可靠性高，由专门的智能远动管理机负责远动功能；各通信设备独立运行，彼此之间只由通信网弱联系，部分设备故障不影响其它设备正常工作；通信系统可扩展性强，新增、投退线路时，可方便地增加按间隔设计的就地单元，而不会影响通信网运行，也不会降低通信速度。该系统已在长沙马王堆无人值班变电站投入运行。

The thesis describes a substation communication system based on completely distributed structure.The communication system is efficient in data transmission.Two communication management cards collect information in substation simultaneously,each of them has four parallel channels.The system is reliable.There is a specific remote communication card in charge with remote communication.All of the communication devices can work independently.They are only connected by the communication net,so the malfunction of some devices will not affect others.The communication system has a good expendability.When adding or quiting lines,the local units designed according to compartments can be conveniently added or removed without disturbing other communication devices or reducing communication speed.The system has been put into use in Changsha Mawangdui Unatended Substation.