The AC servo motors and drives market experienced significant growth in 2020 despite the global impact of COVID-19. Demand for AC servo motors and drives market increased across all regions during the pandemic. According to our analysis, the market size reached USD 6.88 billion in 2020, reflecting a remarkable growth rate of 1.20%. It is projected that the market will continue to expand at a CAGR of 6.64% from 2020 to 2027, ultimately reaching a value of USD 10.79 billion.

Informational Source:

https://www.fortunebusinessinsights.com/ac-servo-motor-market-103513

Major Key Companies Covered in AC Servo Motors and Drives Market  are:

• ABB Group (Switzerland)
• Delta Electronics, Inc. (Taiwan)
• FANUC Corporation (Japan)
• Fuji Electric Co., Ltd. (Japan)
• Kollmorgen Corporation (The U.S.)
• Mitsubishi Electric Corporation (Japan)
• Nidec Corporation (Japan)
• Rockwell Automation, Inc. (The U.S.)
• Schneider Electric SE (France)
• Siemens AG (Germany)
• Yaskawa Electric Corporation (Japan)

AC servo motors and drives market are a powerful combination that underpins automation and precision motion control across various industries. They are the ideal choice for applications requiring high torque, exceptional speed control, and accurate positioning. This article delves into the intricacies of AC servo systems, exploring their components, functionalities, and unique applications, while incorporating interesting facts and developments.

Unveiling the AC Servo Motor: A Powerhouse of Precision

An AC servo motor is a synchronous electric motor that integrates a feedback mechanism for precise control of its angular position, velocity, and acceleration. Unlike conventional AC motors, servo motors excel in their ability to maintain a specific shaft position based on a given command signal.

• Anatomy of an AC Servo Motor:

  • Stator: The stationary component of the motor that houses the electromagnets. When energized with AC current, the stator generates a rotating magnetic field.
  • Rotor: The rotating component of the motor that is directly connected to the output shaft. The rotor design varies depending on the motor's characteristics, but it typically consists of permanent magnets or windings.
  • Encoder: This crucial element acts as the eyes of the servo system. It precisely measures the rotor's angular position and transmits this feedback signal to the drive unit. Encoders can be rotary or linear, depending on the desired measurement.
  • Windings: These coils of wire within the stator or rotor generate a magnetic field when energized with current.

• The Magic of Electromagnetism: AC Servo Motor Operation

The fundamental principle behind AC servo motor operation lies in the concept of electromagnetism. When the AC current energizes the stator windings, it creates a rotating magnetic field. This rotating field induces an electromotive force (EMF) in the rotor windings, which in turn, creates a current. The interaction between the stator's magnetic field and the current in the rotor windings generates torque, causing the rotor to rotate.

• The Feedback Loop: Ensuring Precision Control

The magic of AC servo systems lies in the closed-loop feedback mechanism. The encoder continuously monitors the rotor's position and relays this information to the servo drive. The servo drive compares this feedback signal with the desired command signal. Any discrepancy between the desired and actual positions prompts the drive to regulate the power delivered to the motor's windings, ensuring the rotor reaches and maintains the targeted position.

The AC Servo Drive: The Brain Behind the Brawn

The AC servo drive is the intelligent controller unit that bridges the gap between the command signal and the motor. It receives the desired position, velocity, and acceleration commands and translates them into electrical signals that energize the motor windings. The drive continuously analyzes the feedback signal from the encoder and makes real-time adjustments to maintain precise control.

• Servo Drive Components:

  • Microcontroller: The heart of the drive, it processes the command signal, encoder feedback, and internal sensor data to generate control signals for the motor.
  • Power Electronics: This section consists of transistors, MOSFETs, or IGBTs that regulate the power delivered to the motor windings based on the microcontroller's commands.
  • Communication Interface: This allows for communication with external controllers or Human Machine Interfaces (HMI) to provide operational commands and receive feedback on motor performance