负荷控制系统无线专网的分析及改进

Analysis and Improvement of Load Control System Based on Wireless Private Network

负荷控制系统无线专网已经成为国家电网对各电力公司的基本要求。由于该网还存在着通信资源浪费、频谱利用率低等问题,从数据交换方式、调制方式、信道接入算法、通信可靠性和网络智能化六个方面对负荷控制系统230M无线专网进行研究。并通过采用分组交换法、PSK调制方式以及控制接入和随机接入两者相结合的混合接入方式进行改进,采用前向纠错技术、交织技术、扰码技术和使用ARQ协议进行出错重传来提高通信的可靠性,运用自组网技术和智能电网使网络智能化。

The load control system based on wireless private network has already become the basic requirements of State Grid for power companies. Due to the network exists the problem of wasting communication resources and lowering spectrum efficiency, studies from the method for data exchange, modulation type, channel access algorithm, reliability of communication and network intelligence. Improves the performance by the way of packet switching, PSK and hybrid access mode of control access and random access; improves communication reliability by forward error correction, interweaving technology, scrambling technique and uses the ARQ protocol for retransmission error; and makes the network intelligent by using ad hoc network technology and smart grid.