Application And Research Of The High-voltage Converter Soft-starter In Synchronization Motor

Along with the scale enlargement of the modern industry, The start torque of many manufacturing technique' s important equipment is more and more augment. So it is more important that the start means of the large AC synchronous motor are controlled in the control of the modern factory. Iron &steel metallurgy corporation in china, and she is the demonstration unit in national development circuiting economical. Compressor device in the fuel gas generated electricity, large blast furnace blower and air compressor in the oxygen generator have an important role in the metallurgy manufacturing technique. It' s running power is more than scores of megawatts. So high voltage frequency conversion soft starter device become important equipment in the production process , It' s running stability and high efficiency will directly effect the general company' s steel output and generate electricity enter power net quantity.First the disquisition are compared synchronous motor applying high voltage frequency conversion soft starter with conventional soft starter , by analyzing the basis theory of the high voltage frequency conversion soft starter, we can find to make use of load commutation technology, that is feasible and application in the field . The text mainly study and develop SIMAVERT S system' s main loop system, the control system's hardware structure, software structure , net topology , excite principle . Combined with start sequence and combine power net theory , we can summarize common fault and deal with fault means of the SIMAVERT S high voltage frequency conversion soft starter , its purpose is betterly understand and mastery the control system.we analyze and deal with production accidents to service for production , and it possesses use for reference and extend for this same industry large soft sarter device.In the end , I suggest further improve and consummate the project of the control systemThe synchronous motor structure and main circuit link mode of the high voltage frequency conversion soft starter control system , the hardware configure and software control thinking and so on , have considerable progress and origility , it cost to use for reference and learn .The system running states is better and reach to the level of the design requirement.Main innovation point:? The application of the load commutation technology in the igh voltage frequency conversion soft starter? Out of step and synchronizing again;? No brush excite technology;? Automatically catching synchronizing point and combine power net technology;? Power factor regulate technology;? The fault analysis of the control system.