this is modwlling wind farm smulation with pscad.

本系统以光纤有线网络为骨干，以无线网络为延伸，在井下设立若干无线基站，无线基站之间支持无线链路连接，每台无线基站都具有无线接入和无线转发的功能，组成无线局域网络覆盖井下巷道，使得井下数据在数据终端和各基站之间有秩序的接力转发。这种无线接力转发组网的方式在国内外属前沿技术，在井上已有初步的应用。-The system to fiber optic cable network as the backbone for the extension of wireless networks, severa

This paper investigates wave propagation and transients associated with intersheath modes on normal-bonded and cross-bonded underground cables. Circuits for exciting intersheath modes are analyzed based on simulation and propagation char