V/f control of an induction machine
TN138This note covers the V/f control of an induction machine and its implementation on a programmable drive inverter.
TN138-
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Three-phase MMC converter
TN153
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.
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Three-phase Voltage Source Inverter (VSI)
TN152
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.
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DC bus pre-charge from the AC mains
TN131
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.
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Fictive axis emulation (FAE) for single-phase inverter
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…
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Maximum Power Point Tracking (MPPT) algorithms
Some power sources, like solar panels, present power characteristics that strongly depend on the operating conditions. In such cases, Maximum Power Point Tracking (MPPT) is often applied to maximize the extracted power.
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Dual Active Bridge converter modulation techniques
This note presents several modulation techniques to operate a Dual Active Bridge (DAB) converter. First, the topology and the theoretical aspects of the Dual Active…
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Motor speed control
This technical note explains how to implement speed control for an electric motor. First, the note introduces the general operating principles of motor speed control,…
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Field oriented control (FOC) of permanent magnet synchronous machine (PMSM)
The Field-Oriented Control (FOC) method is a motor control strategy that orients the stator current vector in a rotating reference frame of the machine.
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Proportional resonant controller
TN110
A proportional resonant control can be seen as the implementation of PI controllers within a rotating reference frame (dq), which allows to re-locate the infinite DC gain at desired frequency.
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