Research On Substation Modeling And Application Of Protection Based Of Electromagnetic Simuiation System

The relay protection equipment testing often limited to tester function limits,by single screen single device based development, testing means a single,simple method s, testing is isolated, static, the test items and the limited depth,there will be some f-ault in the actual operation with the traditional instrument is difficult to simulate, r-esult in test the result is not comprehensive. Personnel training of relay protection on the other hand, in the traditional system fault analysis and discriminant analysi-s, positioning and accident investigation aspects of the lack of effective means of t-eaching, it is difficult to carry out collaborativeintegrated training relay protection multi device multi type, in the accident analysis and investigation of positioning is more fresh development.Based on the 500kV simulation of substation DDRTS built for substation syste-m level and dynamic adjustment may be provided and in the operation of the 500-kVsubstation fault analysis and investigation and simulation.In this paper, in order to resolve the problems as the main purpose of the study,carried out the followin-g work:1) To carry out an in-depth Simulation Research of DDRTS system modeling andrelated equipment of relay protection based on2) The in-depth development of power system simulation of various complex a nd special fault types;3) Carried out a fiber dual channel line protection simulation test based on D-DRTS system;4) To carry out the 500kV simulation system for substation DDRTS system ba-sed trainingThis topic through a large number of simulation experiments have madesimul-ation test data of full and accurate, especially for CVT ferromagnetic resonance, CVT transient process, CT transient saturation, circuit breaker restriking breakdown, a variety of cross line and the oscillation of power systemfault, fault, transformation of double circuit lines on the same pole operation mode, the influence of zero sequ-ence current transformer no-load closing closinginrush current, power direction of b-ackward, line through the transition resistance grounding fault, line fault, reverse dire-ction outlet hands together to fault were studied in simulation modeling research and deep, and achieved good simulation effect, accumulated a lot of valuable test dat a and simulation experience, and with a large number of simulation based on the te-st data, and has formed a complete power system one or two equipment simulatio n model and complexspecial fault simulation example base, in order to realize the 500kV substation fault analysis and checking of relay protection simulation and sol-ve the newdevices, testing means a single problem provides an example of the mod-el and the data model in detail. The application effect of this topic to topic confir-m ationlast two examples and the results achieved.