RESEARCH ON THE OVERLOAD PARAMETER OF TIAN-GUANG HVDC AND THE IMPROVEMENT OF THE PARALLEL AC SYSTEM POWER TRANSMISSION CAPABILITY

摘要

On the basis of full studies of the research results and methods at home and abroad, we will put forward a more advanced small disturbance and power shifting stability program calculating method on the definition of static state stability (SSS), and a new kind of method based on increasing DC transient overload capability and meanwhile properly decreasing overload time. These propositions have been adopted by the Tian-Guang HVDC Engineering, the calculation results show that the SSS limit and power transmission capability will be increased obviously without further investment on the engineering.