Sensorless control strategies for PWM rectifier
S. Hansen , Mariusz Malinowski , F. Blaabjerg , Marian Kaźmierkowski
AbstractIn this paper two different control strategies for a PWM rectifier without line voltage sensors are compared. The direct power control (DPC) which has no need for line voltage measurements is compared to the conventional voltage oriented control (VOC) strategy in rotating coordinates with a novel line voltage estimator. The steady-state performance of both strategies is compared with regards to voltage unbalance and pre-distorted grid. Furthermore, the use of discontinuous modulation is motivated in the classical control strategy and is analyzed along with the novel line voltage estimator. It is shown that the VOC strategy with line voltage estimator exhibits several advantages compared to DPC. Some simulations and experimental results verifying the comparison are presented
|Book||Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2000. APEC 2000, vol. 2, 2000|
|Keywords in English||direct power control, discontinuous modulation, line voltage estimator, line voltage measurements, line voltage sensors, power control, pre-distorted grid, PWM power convertors, PWM rectifier, rectifying circuits, rotating coordinates, sensorless control strategies, steady-state performance, voltage control, voltage measurement, voltage oriented control, voltage unbalance|
|Publication indicators||= 152|
|Citation count*||156 (2020-09-10)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.