Rotary inertia identification method for permanent magnet synchronous motor AC servo system

• Main Authors: LI YUEXUE, YANG MING, LIU WEIDONG, ZHANG YANG
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2010
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention discloses a rotary inertia identification method for a permanent magnet synchronous motor AC servo system, which adopts a speed command generator, a motor and a load, and comprises the following steps that: the permanent magnet synchronous motor AC servo system generates enable which has the rotary inertia identification function, and a user sets the rotary inertia identification duration; the speed command generator generates a uniform acceleration command of a first acceleration in the forward direction to make the motor accelerated to a first rotating speed; the speed command generator generates a uniform acceleration command of a second acceleration in the forward direction to make the motor accelerated to a second rotating speed; the speed command generator generates a uniform acceleration command of a third acceleration in the forward direction to make the motor reduced to the first rotating speed; and the speed command generator generates a uniform acceleration command of a fourth acceler