Robust sliding mode control of three-phase four-switch PWM voltage-source rectifier with uncertainties and disturbances

Guo, Huijun; Wang, Hongjiang; Sui-fang, Lin

doi:10.1109/iciea.2018.8397766

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…For example, space vector modulation to derive switching time [15], distributing vector zero switch [16], modeling, and control at balanced conditions [17]. Designing predictable controller with the observer for load current [18], designing predictable controller at balanced grid [19], designing robust sliding mode [20], designing an auxiliary signal control for omitting the DC amount and current input power factor correction at a balanced voltage [21], and designing controller at an unbalanced grid voltage [22] are articles that have been published in FSTPR subject matter.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Te controller designed for the FSTPR is shown in Figure4. As it turns out, instead of the two loops in the CCFSTPR shown in Figure 3, there are four loops designed for the positive and negative components for the dq axes, with reference values obtained through equation (20). Also, as mentioned in Figure 5, the real reference power, i.e., p ref , is determined by a separate loop by the voltage fuctuation of DC capacitors.…”

Section: Proposed Controller Under Unbalanced Voltagementioning

confidence: 99%

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Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage

Bidgoli

Honarbari²

2022

International Transactions on Electrical Energy Systems

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One of the main challenges of a four-switch three-phase rectifier (FSTPR) is a DC imbalance in capacitor voltages. On the other hand, under unbalanced grid voltage conditions, unbalanced three-phase input current and the DC-link voltage affect the performance of the FSTPR. Although many papers focus on designing a controller to balance DC-link capacitor voltage, a few papers are available to cope with the imbalance of DC-link capacitor voltages and input current simultaneously under unbalanced grid voltage. In this paper, first, the operation of the FSTPR under unbalanced grid voltage conditions is investigated. It can be seen that under these conditions, the oscillatory parts of the active and reactive input power, i.e., sin and cos components, are the leading cause of the problems that can severely degrade the FSTPR performance of the controller. Therefore, this paper presents a promising control technique to eliminate the mentioned oscillation components. Aiming at this purpose, the current control loops in the dq axis are divided into two positive and negative sequences, i.e., idq+ and idq−. Simulation results in MATLAB/SimPowerSystem™ show that the proposed controller can reduce the output voltage ripple, the total harmonic distortion, and the unbalancing of input current compared to a conventional controller. Under these conditions, the DC-link capacitor voltages are more balanced, significantly reducing the voltage limiter of the FSTPR.

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