Study on high speed feed drive system for machine tools.

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Integration of synchronous machine drive system for variable speed operation

87 Abstract Based on the novel rotor speed control, the complete AC/DC/AC synchronous machine drive system is integrated. It consists of AC grid, rectifier, inverter and synchronous machine with its excitation system. All power components as well as complete control system are modeled. The sequences of machine starting, voltage control and reactive power control are then accomplished. Short cir...

متن کامل

Dual-Stage Feed Drive for Precision Positioning on Milling Machine

A positioning system with long stroke and high precision by dualstage control was designed. The focus was on combining the long-stroke travel range of linear stage with high-precision characteristics of piezoelectric actuators. The control method used in the system was dynamic compensation type, where the error from linear stage becomes the input to the piezoelectric actuators. Positioning erro...

متن کامل

Feedforward Control Strategies for High-Speed Contouring Machine Tools

d (t) u(t) y(t F((J,q) P(q) ~ I .. ... I I I I I I I I Figure 2: A general architecture of tracking systems using feedforward control I I I I I I I I I I I I I I I I I I I I I ~ Feedforward _ ............. : . Closed LooP--": ; Controller ~ Plant ! In Figure 2, the feedforward controller appears as a pre-filter before the closed-loop system comprising the prevalently adopted is to feed forward ...

متن کامل

Feed optimization for five-axis CNC machine tools with drive constraints

Real time control of five-axis machine tools requires smooth generation of feed, acceleration and jerk in CNC systems without violating the physical limits of the drives. This paper presents a feed scheduling algorithm for CNC systems to minimize the machining time for five-axis contour machining of sculptured surfaces. The variation of the feed along the five-axis tool-path is expressed in a c...

متن کامل

Speed Control of A Three Phase Current Forced Synchronous Machine Drive Based on A Simple Method

In this paper, a new method is proposed for the speed control of a three-phase current forced synchronous machine drive. This metohd is based on the use of an approximate constant commutation safety margin angle in the output thyristor bridge of the drive system as well as on the compenastion of stator magnetization reaction. The commutation process in the output converter of the machine driv...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the Japan Society for Precision Engineering

سال: 1991

ISSN: 1882-675X,0912-0289

DOI: 10.2493/jjspe.57.538