华中华北联网及安阳变电所过渡方案研究

Intergrade scheme study for Anyang substation layout in North and Central China power network interconnection project

华中与华北联网是全国联网南北互供的主通道之一,是全国北部电网与中部电网的重要联网工程。经过系统论证,华中华北联网宜采用先交流,后过渡到直流背靠背的方案。安阳变电所是华中华北联网工程中的关键变电站,其电气接线方案、配电装置、站用电接线等既要满足近期的联网要求,又要适应远期直流背靠背换流站的要求。因此,安阳变过渡方案的研究对于联网工程显得尤为重要。文中对安阳变电站的过渡方案进行了深入细致的研究,提出经过优化的过渡方案,能更好地适应华中华北联网先交流、后直流的分步实施要求。

The interconnection tie lines between North and Central China power network are main part of nationwide interconnection and the routes of interconnection tie lines play an important role for power exchange between North and Central China power network. Through system study, the interconnection scheme will start at AC links and finally change to DC back to back links. Anyang substation is a key substation of North and Central China power network interconnection. Not only the scheme of substation layout, electrical components link and sta- tion service power supply should satisfy the requirements of AC links in recenttime, but also should satisfy the requirements of DC back to back links in future. So, Anyang substation is a very important substation for North and Central China network interconnection. This paper studies and optimizes substation developing scheme, the proposal scheme can satisfy North and Central China power network interconnection require- ments from AC link first step by step to DC back to back link finally.