摘要
微型燃气轮机发电系统能同时产生热能和电能,具有排放少、效率高、安装方便、维护简单等特点,成为热电联供微电网中最有发展前景的分布式电源。文中根据微型燃气轮机发电系统的动态特性,考虑基本的V/f和PQ控制策略,采用正弦脉宽调制(SPWM)逆变器,以"统一"模块化思想建立了微型燃气轮机发电系统的整体模型,并采用PSCAD/EMTDC软件,在动态负荷条件下对该微型燃气轮机发电系统进行仿真,分析了微型燃气轮机与电力电子变流装置及负荷之间的相互影响。仿真结果表明,所构建的系统模型的动态特性符合实际,为进一步研究微电网中各种分布式电源之间的协调控制奠定了基础。
Microturbines not only are capable of producing both heat and electric power,but also have the advantages of less emissions,high efficiency,easy installation and simple maintenance.They become the most promising distributed energy resources in microgrids with combined heat and power energy production.Based on dynamic characteristics of microturbine generation systems,V/f and PQ control strategies and sinusoidal pulse width modulation （SPWM） inverter technology,an overall model of a microturbine generation system is established with the concept of unified modulization.Using PSCAD/EMTDC software,the microturbine generation system with a dynamic load is simulated,and the interactions among the microturbine,power electronic converter and load are analyzed.Simulation results show that the dynamic characteristics of the established model are very close to those of a realistic system.The work in this paper builds the foundation for further research on collaborative control among various distributed energy resources in microgrids.
出处
《电力系统自动化》
EI
CSCD
北大核心
2010年第7期85-89,共5页
Automation of Electric Power Systems
