Opportunities and Limitations of Industrial Internet of Things for Small Motor Drives
The Internet of Things (IoT) is generating a lot of buzz. Basically, the IoT concept is to add ‘smarts’ to a device for the purpose of getting it connected to the Internet. Once connected the benefit is the ability to monitor or control it.
Common Mode Chokes or Cores Cannot Prevent Bearing Failure in All Motors
In recent years, manufacturers of common mode chokes or cores (CMCs) have increased their efforts to market these devices as a means of preventing bearing failures in PWM VFD/inverter-driven motors. CMCs are not new; they have been applied to power electronics for decades. This article will discuss the basic principle of how CMCs work and their effectiveness in mitigating bearing currents.
Accelerated Optimization & Advanced Analysis for Electrical Machines And Drives Boost Motor and Drive Testing Productivity, Capability and Data Analysis
Evaluating motor efficiency has become extremely important since significant efforts are focused on more efficient electrical machines and drives. The main issue is how to implement an accelerated procedure that obtains the motor or drive efficiency for all operating points safely, accurately and rapidly. Ordinary test methods using a typical power analyzer only offer inadequate numerical results.
Switched Reluctance: How Intelligent Motor Control Improved a Technology
Companies that ignore innovation and avoid technological progress are the ones that fall behind. In an increasingly connected world driven by smart devices consumers seek sophisticated products that maximize efficiency and ease of use, and the electric motor industry is no exception. Those seeking to buy and use an electric motor typically seek high efficiency, wide variable speed range and compactness, characteristics that make a product drastically better but result in a high price tag.