Method and apparatus for assembling electrical machines

摘要

A rotor position estimation system (300,400) for an electrical machine (118,518) is provided. The electrical machine has a stator (120,520) at least partially extending around a rotor (122,522). The electrical machine is configured to be electrically coupled to an electric power system (242). The electric power system is configured to transmit at least one phase of electric power to and from the electrical machine with at least partial power conversion. The rotor position estimation system includes at least one processor (202,502) programmed with a stator flux vector estimation scheme (726,1304). The stator flux vector estimation scheme is programmed to generate at least one stator back-electromagnetic force (back-EMF) signal (918,920,1004,1006,1210,1214,1448,1474,1520,1524,1710,1714). The stator flux vector estimation scheme is further programmed to generate at least one stator flux vector signal (734,736,1314,1316) using the at least one stator back-EMF signal. The at least one stator flux vector signal at least partially represents an estimated rotor position (620,1268). The rotor position estimation scheme also includes at least one output device (210,510) coupled in data communication with the at least one processor.