These notes present solutions for the implementation of control software, with practical, imperix-related aspects in mind. They mostly focus on one specific subsystem and may link to other technical notes if needed. Technical notes are application-independent.
Fictive axis emulation is a vector control technique that is mostly used in single-phase inverter applications, where the second axis β of a rotating reference…
In voltage source converters, pre-charging the inverter DC bus is required before connecting it to external voltage sources, so that to avoid inrush currents that may be destructive.
This note covers the rotor field-oriented control of an induction machine and its implementation on a user-configurable voltage-source inverter.
This note covers the V/f control of an induction machine and its implementation on a programmable drive inverter.
This note covers the I-f startup method for speed sensorless motor control and its implementation on a programmable power converter prototype.
This technical note addresses the sensorless control of motor drives using a back-EMF sliding-mode observer. The technique allows speed and position estimation of a Permanent…
Closed-loop current control for a grid-tied Neutral Point Clamped (NPC) inverter. The considered setup is a three-phase three-wire NPC inverter supplied by a DC source and connected to the grid.
This technical note presents various techniques for the DC bus balancing of NPC converters. These techniques are notably used in TN135, which implements a grid-tied…
This technical note provides an example of how a fast hysteresis current controller can be implemented, leveraging the possibility of editing the FPGA firmware for…
This technical note shows how the implementation of an FPGA-based hysteresis controller can be conducted, starting from the modeling stage, following with automated VHDL code…
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