Research On Simulation Technique For Parallel Operation System Of Turbine Generator Set

With the development of electrical industry and technology, the control of the generator sets is more complicated, the requirement of operating staff to improve manipulation level is higher. Therefore, the significance of developing the generator set simulation system is great. In modern power system, we always use several generator connected in parallel. So, the parallel connection process of the generator set is a great part of the generator set simulation system.According to the operating characteristics of platform power system, it does some further analysis of the principle of the parallel system of the turbine generator and its operating course. According to the basic principle of electromagnetic, electrodynamics and dynamics, it establishes the mathematic model of the every part. It designs simulation system hardware and software platform. The main research of this paper can be included as follows.1. Through looking over many literatures, it summarizes the former experiences of the simulation system of the generator sets. Through the analysis of all the parts of the turbine generator sets, on the basis of the principles of the synchronous generator, prime mover, excitation system it establishes the math models for every part of the generator sets system, including regulation system of the rotate speed, and the excitation regulation system, and the calculation model of the strike current.2. The simulation software system is realized through Visual Basic development language platform by use of the Object Oriented design means. It establishes the simulation model by use of Matlab, based on the mathematic model of every part.3. It achieves the communication exchange between the VB and Matlab with Active X automatic technology and the one between VB and Matlab with OPC technology.4. It designs simulation system hardware platform by the semi-physical simulation method. Through PLC, it accomplishes the communication between the display instruments and simulation software, and designs the simulation synchronizer by use of PLC and step motor. Combined with specific parameters,it carries out the experimental validation.