Progressive decrement PWM algorithm for minimum mean square error inverter output voltage

Sensorless PMSM Drive Implementation by Introduction of Maximum Efficiency Characteristics in Reference Current Generation

“…The power losses in a power inverter consist of conduction or Ohm's losses and switching losses. In this work they are minimized by proper selection of the DC-bus voltage, where the impact of dead times is minimized [5,8,9] and by proper selection of the switching frequency [7,24,36,37] as well. The proper values were determined experimentally by measurements performed on the tested PMSM drive.…”

“…Assuming a given inverter and a given PMSM, the PMSM drive efficiency can be improved by minimizing inverter losses and PMSM losses. In addition to advanced modulation techniques [36,37], the inverter losses can be mostly influenced by the closed-loop control or a proper choice of DC-bus voltage and by an optimal choice of switching frequency [24]. The PMSM losses can be influenced by the voltage and current total harmonic distortion that depend on the switching frequency [7,24,38], and in the case of vector controlled PMSM by the generation of the d-and q-axis current references.…”

“…It is shown that the drive efficiency can be improved when ME characteristics are used to generate the d-and q-axis current references, which is true for the sensorless control as well as for the control realization with position sensor. In order to facilitate a direct comparison, the space vector modulation has been utilized without any advanced modulation techniques such as discussed in [36,37]. Section 5 then concludes the paper.…”

Output‐voltage feedback control topology for inverters dedicated to renewable energy systems

“…The main objective of this contribution is the development of a new command strategy for inverters considering the output voltage as reference for adaptive PWM, whether the inverter is grid connected or not. By else, it can be considered as a performing, with a reduction of the THD, and simple alternative solution to the Progressive decrement and increment PWM algorithm [20]. In the following description, to only focalize on the performance of the APWM technique, we consider a basic push-pull half-bridge inverter, knowing that the APWM technique can be implemented with other inverter topologies.…”

“…[19]. By else, it can be considered as a performing, with a reduction of the THD, and simple alternative solution to the Progressive decrement and increment PWM algorithm [20].…”