摘要
煤矿井下人员定位技术发展缓慢,且普遍存在着通信可靠性低和定位精度低等问题。针对上述问题,试图将高可靠性的CAN总线应用到井下定位系统中。结果显示,它实现了地面与井下之间数据的可靠传输,对井下定位系统的总体性能有一定提高。介绍了定位系统的硬件部分、软件部分,尤其对CAN总线的通信协议的制定进行了详细介绍。
Wind energy occupies a larger proportion of power energy.It would severely affect the power grid.Power flow calculation is a basic method to analyze the power grid after the wind farm accessed.Based on the model of induction generator and doubly-fed induction generator（DFIG）,an alternating algorithm between main grid and wind farm is proposed.The wind farm is added to the main grid as a PQ node when the main grid is calculatting.The voltage of export bus from main grid calculation is a input variable of wind farm calculation.The simulation is carried out on IEEE9 system, replacing the generator3 with an actual wind farm in North China.The result proves that the method is feasible.
出处
《电力学报》
2011年第4期313-315,共3页
Journal of Electric Power
关键词
通信工程
定位系统
CAN总线
通信协议
induction generator
DFIG
main grid
wind farm
alternate solution
