Direct power control of PWM converter without power source voltage sensors

Three-phase, power quality improvement ac/dc converters

“…Other control techniques reported in the literature are: voltage-based direct power control (V-DPC) [30], virtual flux oriented control (VFOC) [48], and virtual flux based direct power control (VF-DPC) [43]. Compared to VOC, there is a simpler algorithm and no current control loops, coordinate transformation and separate PWM voltage modulator are required.…”

“…The sensorless techniques can make technical and economical contributions to the system simplification, isolation between the power circuit and control circuit, and cost-effectiveness. Both current sensorless techniques [24] and voltage sensorless techniques [26,30,37,39,43] have been reported in the literature.…”

Grid-integrated permanent magnet synchronous generator based wind energy conversion systems: A technology review

“…In DPC, a unity-power-factor operation can be achieved when reactive power reference is set to zero. The DPC owns the advantages such as simple implementation, no coordinate transformation, no cross-coupling effect between the active and reactive powers, fast dynamic response, reduced computation time and high robustness to parameter variations; whereas, large THD with high power and current ripples are the major shortcomings of the DPC [14,[133][134]145]. Further, the DPC needs not only high sampling frequency due to fast changing estimated values of active and reactive powers but also high filter inductance because of the variable switching frequency [144].…”

Design and experimental verification of a dead beat power control strategy for low cost three phase PWM converters

“…Compared to VOC, there is a simpler algorithm, no current control loops, no coordinate transformation and separate PWM voltage modulator, no need for decoupling between the control of the active and reactive components, and better dynamics performance. On the other hand, the variable switching frequency and some problems due to the high gain of the hysteresis controllers are the well-known disadvantages of the DPC scheme [27][28][29][30][31][32]. In the case of low cost converters, some essential requirements of DPC principle cannot be achieved.…”