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 example generates three phase alternating currents from a voltage source inverter in an open loop manner. It can be used in a grid-forming application.
This note introduces a conventional control for Modular Multilevel Converters (MMC). The converter is used in a DC/AC inverter configuration and is connected to the three phase grid.
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…
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