At present, in some long cable and high-speed motor applications, in order to filter harmonics, reduce interference, improve efficiency and safety, sinusoidal filters are added between the output end of the inverter and the motor end. The addition of sinusoidal filter will lead to changes in the mathematical model of the motor control system, and the traditional vector control technology can not guarantee the original control performance, and there will be problems such as larger error, worse performance, and non-convergence of the algorithm. How to solve this difficulty, technological innovation has become the key.
Take technological innovation as a breakthrough
Run out of R&D “acceleration”
In order to meet the load control requirements of the output sinusoidal filter of the frequency converter and ensure the safe and stable operation of the equipment, Victron relies on its self-developed core technology reserves to develop sinusoidal filter

B3EA-HENF315147R1

vector control technology, which can meet the control requirements of sinusoidal filter in various application scenarios with the advantages of safe filtering, energy saving and consumption reduction, stability and reliability.
Vectron sinusoidal filter vector control technology, by using a new filter observer technology to obtain the voltage and current state of the motor side, the use of damping control to solve the resonance problem of the sinusoidal filter, compared with the traditional technology does not consider the scalar or vector control of the sinusoidal filter, can significantly improve the stability of the motor control, retain the high dynamic performance of the vector control, at the same time, Greatly reduce the motor current harmonic content, effectively control the motor temperature rise, avoid the motor high temperature magnetic loss and overvoltage phenomenon, achieve lower power consumption of the power system, and help the safe operation of the power grid and user equipment.
This technology is suitable for various motor types such as asynchronous motor and permanent magnet synchronous motor, combined with speed sensorless current vector control, filter resonance suppression control, sinusoidal filter plus transformer boost control scheme, and self-learning of impedance parameters on the primary and secondary sides of the transformer, so that the overall technology plays a better role. The innovative breakthrough of this technology also provides important technical support for the requirements of reducing motor energy consumption under green manufacturing.
In many sinusoidal filter application scenarios, long cable and high-speed motor applications for sinusoidal filter vector control has a wide range of needs, such as oilfield drilling, Marine exploration, paper making, mining and other long cable application scenarios, the addition of sine filter can reduce harmonic content and prevent overvoltage phenomenon; In aviation, Marine fields, high-speed CNC machine tools, micro gas turbines, flywheel energy storage systems in smart power grids and other high-speed motor application scenarios, the addition of sine filters can reduce motor losses, suppress current harmonics, and reduce motor temperature.