Outer Reef Technologies - Brushless DC Motors Controller

Brushless DC Motors Controller

Outer Reef Technologies

Brushless DC (BLDC) Motor Control Systems

Brushless DC (BLDC) motors are electronically commutated and are quickly growing in popularity owing to their improved torque-to-weight ratio and superior electrical efficiency. They perform noticeably better than mechanically commutated, brushed motors because of these improvements.

They are categorized as permanent magnet synchronous machines or PMSMs. Unlike PMSM motors that demonstrate sinusoidal back EMF because of distributed stator windings, the concentration of stator windings in BLDC motors demonstrates a trapezoidal back EMF.

This means that brushless DC motor control systems commonly use trapezoidal control. Field-oriented control (FOC) is also used in some BLDC motor control systems, whereas a typical PMSM motor will only use a field-oriented motor controller.

Trapezoidal control in BLDC motor control systems is less complex than FOC because it energizes just two phases at any given moment. Torque control in trapezoidal brushless DC motor control systems is operated by a single PID controller.

Moreover, BLDC motor control systems do not require coordinate transformation, unlike typical field-oriented control that uses Park and Clarke transforms for this purpose.

Here is how the engineers at Outer Reef Technologies design BLDC motor control systems using trapezoidal methods for improved efficiency, reliability, and control.

  • They build motor controller architecture using a PI controller for the inner voltage loop.
  • They build PI controllers for optional outer speed and position loops.
  • They meet all performance requirements by finely tuning and optimizing the gains of all PI controllers.
  • They design Space Vector Modulation (SVM) control
  • They design fault detection and protection logic
  • They test and certify motor controller performance across different working conditions
  • They implement a motor controller in fixed or floating point on a microcontroller

This trapezoidal control design in BLDC motor control systems provides immense advantages in operations.

The Advantage of Brushless DC Motor (BLDC Motor)

BLDC motors offer high torque, wide speed range, and energy efficiency in a space-saving design, and these result in the majority of its advantages when compared to other motors. They are widely popular because they save time, cost, and space while enhancing performance, reliability, and efficiency.

  • Powerful Performance:BLDC motors are much more powerful than similar-sized counterparts. They offer a wide range of speed, and their flat torque characteristic means they can maintain torque even if the speed changes. They are even capable of producing up to twice the torque for a limited amount of time.
    They are also capable of regulating and maintaining speeds around 99 percent, irrespective of changing loads.
  • Compact Design:The compact yet powerful design of BLDC motors means they are space-saving motors and allow you to downsize your equipment without compromising on performance. Compared to any AC motor of similar size, brushless DC motors produce substantially more output.
  • Reliable BLDC Motor Control Systems:As mentioned, BLDC motors are electronically commutated and typically use a trapezoidal control through BLDC motor control systems. These are electronic-input motor controllers, and the BLDC motor itself requires no power relays.
    This makes them highly reliable because it eliminates the need for replacement or periodic service of the relays. Additionally, it considerably reduces the set-up time of BLDC motors, and the lack of relays means there is no spark noise, from the opening and shutting of contact points.
  • Maintenance-Free Motor:Since BLDC motors do not use brushes that require periodic maintenance or complete replacement over time, they save additional money and time. This feature combined with lack of power relays means that your BLDC motor control system and BLDC motor are truly maintenance-free.
  • Energy Efficiency:BLDC motors incorporate permanent magnets in the rotor, and this results in little to no energy loss from the rotor. They also consume less energy when compared to the similar performance of other motors. BLDC motors are more than capable of significantly reducing the energy consumption of your equipment.

Looking for Brushless DC Motor Control System & Engineering Expertise?

Outer Reef Technologies offers some of the best brushless DC motor control systems and engineering expertise to its customers.

Call us directly at 954-323-7850

If you would like to know more about Brushless DC Motors Controller or have any project.

Services

Product Examples

Robotics and Automation

We have our objective set on examining every medical competition and establishing excellent robotic platforms. We have proudly worked as a perfect team for various high competency firms.

Motor Controllers

You don’t need to worry about your motor control issues. Sensored or sensorless BLDC motors require excellent hardware and firmware, and our team builds parts that give better speed and quicker dynamic response.

Surgical Navigation/Motion Capture

Our team develops high accuracy navigation systems for industries such as gaming and medical. To use the GPS analogy applications, we develop data based on maps. Our system includes mechanical tracking options and IMU.

Surgical Suites

We have worked for highly specialist surgeons in the past few years. Resolving the needs and conditions, our team has built numerous medical equipment and suites for these firms through clinical works and hundreds of submissions.

Imaging and Optics

We have constructed various optical devices such as LED fiber optics, durable scopes, and more for over a hundred firms till now. Our team is experienced and has extensive expertise in optical devices.

High Precision Encoders

By analyzing our customer needs and requirements, we build encoders that are highly formal and function exceptionally well to provide all solutions in a single and small unit.

Virtual and Augmented Reality

With the help of an experienced team, we have successfully collaborated and produced by building the best virtual and augmented reality devices. Our builders specialize in sensor evaluation and system integration.

Industrial Product and Packaging Design

Designers here analyze needs and prepare an application that satisfies all requirements. Our team uses digital printing techniques to ensure excellent quality and build more competition in the market.

Software and Application Development

Digital society is all about applications as it is quite obvious to know that software and application will be in high demand. Our firm supports these applications, desktop, and mobile apps to integrate, provide maximum benefits

FAQ's

How does a brushless electric motor work?
To better understand how a brushless electric motor works, you need to first understand how a brushed electric motor works. A brushed DC motor has permanent, stationary magnets on the stator and an electromagnetic spinning rotor inside, which spins 180 degrees when electricity is run through it.

The rotor requires the electromagnetic poles to switch to spin a full 360 degrees. This is where the brushes come in. As the rotor spins, the brushes make contact with the stator, and this switches the poles, allowing the rotor to achieve a complete 360 degrees spin.

A brushless DC motor is a brushed DC motor but turned inside out. Hence, a BLDC motor has a permanent magnetic rotor and a spinning electromagnetic stator. This eliminates the need for any brushes to flip the electromagnetic poles.

A computerized BLDC motor control system simply energizes the stator to make complete 360-degree spins.

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