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由于电力应急通信系统的迫切需求,要求系统能够在最大距离范围内建立起通信信道,有必要选用具有良好的适应性和扩展性的无线通信技术作为光纤通信网的有力补充。文中通过对各种无线通信技术的性能进行比较以及对WiMAX的关键技术及其在电力系统中的应用分析,结合电网应急通信系统的需求,发现WiMAX技术的优良性能可以满足应急通信时的要求。接着对WiMAX的关键技术以及应用场景进行分析,构建WiMAX的组网方案,充分利用现有的有线网络资源,在具有高可靠性的有线网络上搭建以WiMAX为主要技术的无线网络平台,并可针对灾变事故的影响程度,建立不同的应急通道,以满足突发事故下对通信通道的不同要求。
Due to the urgent need of the power emergency communication system, the system is required to establish a communication channel within the maximum distance range. It is necessary to select a wireless communication technology with good adaptability and expansibility as a powerful complement to the optical fiber communication network. By comparing the performance of various wireless communication technologies and analyzing the key technology of WiMAX and its application in power system, combined with the requirements of emergency communication system, we find that the excellent performance of WiMAX technology can meet the requirements of emergency communication. Secondly, it analyzes the key technologies and application scenarios of WiMAX, constructs the WiMAX networking scheme, makes full use of the existing wired network resources, builds a WiMAX-based wireless network platform with high reliability in the wired network, and provides According to the influence degree of catastrophic accident, different emergency routes are set up to meet the different requirements of communication channels under emergencies.