舰船电力系统发电单元时域聚合方法  

Time Domain Aggregation of Generating Units for Ship Power System

作　　者：杨勇波[1,2] 查晓明[1] 

机构地区：[1]武汉大学电气工程学院,武汉430072 [2]湖北汽车工业学院电气工程系,十堰442002

出　　处：《电工技术学报》2010年第4期150-157,共8页Transactions of China Electrotechnical Society

摘　　要：根据现有等值方法,提出了一种改进的、适合舰船电力系统特点的在线动态等值方法。该等值方法在对发电单元进行聚合时,发电机、励磁系统、调速器都保留原有模型结构。根据舰船电力系统特点,发电机采用考虑次暂态的六阶模型,给出了基于六阶发电机模型的参数计算公式和聚合的一般步骤。在计算等值模型的参数时,采用了时域的非迭代代数运算,减少了运算时间。在对某一实际包含12台发电机的舰船电力系统进行建模等值时,应用该方法,给出了等值参数及在PSCAD/EMTDC仿真环境中的动态响应曲线。验证了该等值聚合方法的有效性。An improved time-domain online dynamic equivalent method is presented, which is suitable to shipboard power system. It preserves the structure of the generator, excitation system and governor system. Sixth-order generator equation is used to reduce the grid considering the subtransient.Formulas and the aggregation steps are come out. The time-domain non-iterative algebraic operations process is used to calculate equivalent parameters. For verifying the effect of this aggregation method, the method is applied to reduce a twelve generators shipboard power system. The equivalent parameters and the dynamic response curves are presented in PSCAD/EMTDC simulation environment.And the simulation curves show that the equivalent system retains the dynamic performance of the original system with good accuracy.

关 键 词：动态等值 同调 结构保留 六阶模型 PSCAD/EMTDC 舰船电力系统 

分 类 号：TM351[电气工程—电机]