【摘要】 微型燃气轮机是微电网中非常重要的微型电源,其应用前景非常广泛。在分析微型燃气轮机发电系统数学模型和系统结构的基础上,根据并网运行的控制方式,采用PQ控制策略设计逆变控制器。使用MAT-LAB软件建立了微型燃气轮机并网系统的一体化模型,对此系统进行仿真,仿真结果表明系统在各种运行情况下基本满足PQ控制目标,可以按照PQ参定值输出相应的功率,整流器侧直流电压的波动小,从而证明了该控制策略的有效性。更多还原

【Abstract】 The micro-turbine is very important micro-source for microgrid,and it will be most widely used in near future so the mathematical model and systematical structure of micro-turbine generation system are discussed in this thesis.According to the basic control and operation principles of microgrid,PQ control scheme is proposed in order to design the controller of inverter.Micro-turbine grid-connected system,as an all-in-one unit,is established and simulated by using the MATLAB software.The simulation results show that the system is capable of meeting the given real and reactive power set points in any operation conditions,and reducing the variation of DC voltage between rectifier and inverter.Therefore,the proposed control approach is proved to be effective.更多还原