Robust converter-fed motor control based on active rejection of multiple disturbances

Sensorless Tracking Control for a “Full-Bridge Buck Inverter–DC Motor” System: Passivity and Flatness-Based Design

“…Until now, the only experimental work related to the fullbridge Buck inverter-DC motor system, is the one where its mathematical model was developed and experimentally validated [59]. In the experimental tests reported in [59] the four desired trajectories ω * used there were the same ones used in this paper, i.e., ( 25)- (28). Thus, in order to highlight the performance of the proposed ETEDPOF control (14), in the following, the similarity between ω versus ω * and υ versus υ * is quantified from the experimental results obtained in closed-loop (developed in this paper) and those in open-loop (reported in [59]).…”

“…Having defined the experimental closed-loop tracking errors in (29) and the experimental open-loop tracking errors in (30); the plots of the tracking errors for ω and υ, associated with the desired angular velocity profiles ω * (25)-( 28 ). Such a behavior is due to the desired trajectories (25) and (28) have less sign changes compared to the desired trajectories (26) and (27), respectively.…”

“…Additionally, Srinivasan et al in [26] introduced a sensitivity analysis for the ETEDPOF methodology applied to the DC/DC Buck converter-DC motor system. Lastly, the important problem of active disturbance rejection control was also tackled by Stanković et al in [27] and Madonski et al in [28] for harmonic disturbances and multiple uncertainties, where resonant extended observers were utilized. Other interesting papers, recently published, associated with the connection of the DC/DC Buck power converter and DC motor have been reported in [29] and [30].…”

“…Lastly, the fourth experiment uses the desired trajectory profile defined in (28). While the obtained experimental results are depicted in Fig.…”

“…FIGURE 7. Experimental results associated with the implementation of the passivity-based control (14) when ω * is considered to be the sinusoidal trajectory with time-varying frequency(28).…”