Application Research On Transmission Technology Of Saturated Core - Type Superconducting Controllable Reactor

This article relies on science and technology projects"Superconducting controllable reactor application in grid",introduces the saturated core superconducting controllable reactor and a high leakage reactance type superconducting controllable reactor can be two types of superconductivity controlled Reactor, analyzed their structure principle; establish saturation-type controllable reactor core electromagnetic model, with220V/20A saturated core-type controllable reactor prototype test analysis, can be saturated core superconducting controlled Reactor build an equivalent model in the high-voltage transmission system to lay the foundation.Firstly, simulation studies analyze the impact of superconducting controllable reactor load shedding on the line, asymmetric overvoltage fault, this type of reactor using its continuous smooth adjustment, fast response characteristics of load shedding on the line, asymmetric fault overvoltage better inhibition; combine the actual situation in Yunnan power grid, select Devon-Yanshan this more typical transmission lines, trend lines which use the data in different operation modes, it is the first study to explore this route end, the end serious investment in high voltage areas controllable reactor regulation voltage through simulation analysis found that superconductivity controllable reactor can quickly and effectively to achieve voltage regulation in various modes of operation of the line to maintain a balance node voltage; super access guide controllable reactor generator end, the simulation found that it can keep the system reactive power balance, while the terminal voltage stability, improve the operation of the generator into phase; build EHV PSCAD simulation model, in the line the first end, the end of which are installed in parallel with high resistance, and the use of shunt reactors plus neutral small controllable reactance coordinated control method, in which the neutral point of the anti-small superconducting controllable reactor, set up a single in the line phase fault, through simulation analysis, we found that high resistance in parallel with the neutral point of the anti-controllable small electric methods, better able to suppress the arc current under different degree of compensation.