Analysis Of9E Gas Turbine Generator Synchronous Device And G60Generator Protection

Power plant relay protection, grid equipment, speed control system is stable and reliableis the foundation of the safe and stable operation of power plant. Reasonable allocation ofelectric system and eliminate the safety hidden danger in time, potential defects is to assurethe safety of power plant, the economy, the key to stable operation.In this article, through analysis of the power plant4#generator gas turbine generator inthe process of grid appears G60will be differential protection movements, reverse powerprotection device and the several times the cause of the failure of the grid, puts forward theproblems may cause the failure and safe hidden trouble. For intermittent defects existing inthe process of interconnection, through consulting related to the fault of literature, analysis ofthe operation data of the same type unit at home and abroad, combined with the actualsituation of the factory, put forward from the MARK V protection device, interconnectiondevice, control system, excitation system and speed regulating system of several functionmodules to find reasons for this. Through the establishment of check model to analyzeresearch proposals, shows the feasibility of the scheme in the process of actualimplementation. Through the solutions in the process of implementation of the experimentand the analysis of the measured data, show that the fundamental problem of grid failure,timely eliminate major defects existing in the unit, to improve the safe and stable operation ofthe unit.This article through to the device over the same frequency, phase and voltage of thesurvey and the fixed value adjustment, at the same time servo valve of gas turbine governingsystem grid monitoring, determine what caused the same period more than set time has failedto perform or within3seconds after the unit grid reverse power protection action.Comprehensive analysis and the primary and secondary circuit protection device ontology,excitation EX2100system, over the same period the actual data for the board, speedregulation system, MARK V, solve the problems in the4#generator power generation is notsafe. More work need to many times in the process of unit stop sampling parameters andcurves, including active, reactive power, excitation voltage, excitation current, voltage of thegenerator, speed, speed control system, servo valve movement curve, protection of the actualdata values and measured values such as zero drift.In paper, through a series of function modules, can gradually solve the power plant4#gas turbine generator in grid defects and hidden dangers existing in the process, to ensure the safety stability of the generating units, to avoid the defects due to this type of electricaldevelopment for other major accidents.