伺服馬達及馬達驅動技術之進展

Abstract

Low Cost yet Enhanced Servomotor and Motor Drive Technology Open up New Choices for Application Developers

Improvements in control techniques and algorithms backed by greater processing power in motor drives are increasing the functionality, capability, and appeal of servo-based control systems. This means better control -- and its attendant benefits --of a very wide spectrum of applications. The development and availability of greater functionality, especially at attractive costs, provide important potential benefits for application developers of servo systems technology.

This Technical Insights study provides an overview of advances in servomotor and motor drive technology. It presents technology and applications viewpoints, examines technologies such as electric servomotors, classified variously as rotary and linear, brushed and brushless; permanent magnet and induction motors; as well as drive technology and its components including digital signal controllers. The research service enables companies to align their positioning strategies to benefit from the emerging technologies.

Technology Integration Enable More Feature-Rich Applications

"Integration at lower levels within the controller increases the number of features and functions that can be integrated into a single chip," says the analyst of this research service. "In some controllers, this can be done to a considerable degree, thereby absorbing many of the functions of the servo drive into a single microchip." Such integration has a huge impact on the applications. It enables designers building servo applications around the controller to add and develop more features in them.

Greater numbers of enhanced features enable technology developers to differentiate their applications, giving them a significant advantage in a competitive market. This has also increasingly solved problems at the motor level, resulting in improved control of drives.

Improved Functionalities of Servo Control Encourage their Uptake in Untapped Markets

Developments in servomotor and motor drive technology have enhanced the features and functionalities in applications to such an extent that it is now being considered in areas where its use was once restricted. Linear motors are especially seeing increasing application in fields that that were once dominated by traditional and low-cost technologies. The latter are increasingly yielding to drive technology due to its natural advantages in important operating parameters. Some advancements in drive technology include improvements in some of the core technologies around which drives are built, greater digital processing power, performance, and resolution.

A crucial factor that drives adoption of servo technologies is the economic attractiveness of processing power. This has helped servo technologies match rising demands from end-user industries and applications. "Servo technology, which found application only in high-cost, advanced fly-by-wire systems in military aircraft, now replaces hydraulics and pneumatics in applications as common as automobile power steering," notes the analyst. "For a technology that has always been characterized as being an expensive, this is a significant step."

Table of Contents

• 1. Executive Summary
  • 1. Scope and Methodology
    • 1. Scope
    • 2. Methodology
  • 2. Introduction and Key Findings
    • 1. Introduction
    • 2. Key Findings
• 2. Technology and Applications Viewpoint
  • 1. Technology Primer
    • 1. Overview
    • 2. Motor Technology
    • 3. Drive Technology
  • 2. An Assessment of Technology and Application Trends
    • 1. Overview
    • 2. Trends in Motor Technology
    • 3. Trends in Drive Technology
• 3. Technology Adoption Factor Analysis
  • 1. Effects on Competing Technologies
    • 1. Servos versus Steppers
    • 2. Linear Applications
  • 2. Analysis of Drivers and Challenges
    • 1. Analysis of Drivers
      • a. The Effect of Cost at the Component and System Levels
      • b. The Demand for Enhanced Performance among OEMs
      • c. The Demand for Better Performance in Migration Applications
      • d. More for Less: The Availability of Greater Processing Power at Lower Costs
    • 2. Analysis of Challenges
      • a. A Cautious Industry
      • b. Industry Knowledge and Awareness
      • c. The Prevalent Perception of Cost Benefits
• 4. Noteworthy Innovations
  • 1. Noteworthy Innovations in Academia
    • 1. Iterative Learning Control for Ripple Minimization in Motors--Singapore
    • 2. Selective Regional Correlation for Fault Diagnosis in Servomotors--Canada
    • 3. Fuzzy Optimization Techniques for Integration of Servo Drives with Systems--Taiwan
    • 4. Composite Nonlinear Control Approach for Dual-stage Actuated HDD Servo System--Singapore
    • 5. FPGA-Based Servo Control in Robust Open Architectures--Canada
    • 6. Waveform Shaping for Low Cost Torque Ripple Mitigation in Permanent Magnet Synchronous Motor Drives--USA
    • 7. Adaptive Control of PMSM to Overcome Model Uncertainty--China
    • 8. Sensorless Control for Permanent Magnet Linear Synchronous Motors--China
  • 2. Noteworthy Innovations in the Corporate Sector
    • 1. Digital Signal Controller for Motor Control with Greatly Enhanced Performance and Resolution--USA
    • 2. Lower MTTR and Higher Reliability Offered by New Servo System--USA
    • 3. New Technology for Security in Drives under Development--USA
    • 4. New Technologies Replace Traditional Linear Actuators and Eliminate Interference from PWM Amplifiers--USA
    • 5. Fiberoptic System for Signal Transmission in Servo Applications--USA
    • 6. Software in Low-Cost Servo Drive to Minimize Mechanical Resonance--USA
    • 7. Next-Generation Servo Promises Performance Accuracy and Compactness--USA
    • 8. New Developments from Motion Control Firm in Three Technologies--Switzerland
    • 9. OEM Supplier Leads Servo Technology into Promising New Commercial Application: Automotive Fuel Cells--USA
    • 10. Automation Firm Develops New Rotary and Linear Servomotors--USA
    • 11. New Linear Motor for Precision Applications Aims to Replace Rotary Motor-Based Linear Actuators--USA
    • 12. High Performance Servo System Designed for Simpler Setup and Operation--USA
    • 13. Closed Loop Motion Control Modules--Germany
    • 14. Motion Control Card with Sophisticated Interpolation Capabilities for Advanced Applications--USA
    • 15. Solution with Multiple Features in Hardware and Software--USA
    • 16. Intelligent Servomotor with Flexible Control Software--Switzerland
• 5. Database of Key Industry Participants and Selected Patents
  • 1. Database of Key Industry Participants
    • 1. Academic
    • 2. Corporate
  • 2. Patents
    • 1. United States
    • 2. Other Countries
• 6. Frost & Sullivan 2005 Science & Technology Awards
  • 1. Excellence in Technology
    • 1. Award Description
    • 2. Award Recipient
  • 2. Technology Innovation
    • 1. Award Description
    • 2. Award Recipient
  • 3. Technology Leadership
    • 1. Award Description
    • 2. Award Recipient
• 7. Critical Reference Tables
  • 1. Decision Support Database Tables
    • 1. World Machine Tool Production (1999-2006)
    • 2. World Semiconductor Market and Semiconductor Equipment Market (1999-2006)
    • 3. World Car Production (1999-2006)
    • 4. World Heavy Truck Production (1999-2006)
    • 5. World Bus Production (1999-2006)
    • 6. World Heavy Commercial Vehicle Production (1999-2006)
    • 7. World Paper and Paperboard Production (1999-2006)