The Chinese company, INVT, has utilized HBK’s T10F torque transducer and MP60 amplifiers to measure torque and speed of an electric motor controlled by a variable frequency drive (VFD) in order to optimize performance.VFDs, or inverters are widely used in industry to restrict an alternating current (AC) motor’s rotation by controlling the frequency of the electrical power supplied to the motor. By deploying optimized VFDs, industrial users can save energy, extend equipment life, reduce maintenance and tighten process control.
As part of its on-going research program, INVT – which manufactures low, medium and high voltage inverters, servo drives and brake units – needed better data on its vector control technology. This is one of the four main control methods for VFDs; the others are Volts/Hertz, Slip frequency and Direct Torque control. INVT worked in co-operation with HBK to build a dynamic mathematical model that could then be used to optimize the control algorithm of VFD to improve its performance. The optimized algorithm ramps up the motor gradually and smoothly, yet can be programmed to run the motor at a precise speed, stop at a precise position, or apply a specific amount of torque.
HBK was able to provide a completely integrated solution for implementing the dynamic test that comprised transducer, measurement electronics, software and service. The precision of the T10F torque flange played an important role and this is mounted with couplings to compensate for misalignment between the drive motor and the load motor while measuring torque and rotating speed. The extremely short design of the T10F took up less space in the test stand than other models thus reducing vibration and saving money while the very high torsional stiffness and low moment of inertia minimized any sympathetic vibrations in the system.
In addition the torque measurement system remained maintenance-free because there are no bearings or slip rings. All torque and speed signals from the sensors are conditioned the HBK’s MP60 amplifiers and communicated with the computer via USB to a CANbus interface converter without any accuracy loss. INVT also benefitted from HBK China’s design consultancy, site erection advice, commissioning and customer training. By working in co-operation with HBK in this way, INVT aims to maintain its leadership in electric drive and industrial control technology while increasing its proficiency in mature vector control technology and special inverter control technology. INVT next aims to seek breakthroughs in four-quadrant control technology utilizing similar technology for optimizing performance
INVT (Shenzhen INVT Electric Co., Ltd) has been concentrating on industry automation and energy power since its foundation in 2002 and is committed to “Providing Excellent Products and Services, Empower Customers More Competitive”.
Our precise single-channel signal conditioner offers all modern automation interfaces, an intuitive web interface and smart functions. The amplifier board converts the signals supplied by analog load cells into digital signals and is available with RS-485 2-wire communication and CAN.
Get to know our rotating torque transducers. From the flange type, we have T12HP, T40B, T40FM, T40FH, T40MAR, T10F, and T40MS. From the shaft type T22, T5 and T210. Choosing the proper rotating torque sensor is very important as the proper selection will prevent damage and ensure accuracy.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.