Linearly controllable boost voltages from Tri-Level PWM current-source inverter

Simplified generic on-line PWM technique for single phase grid connected current source inverters

“…Limited attention was given to single phase CSI's although they are promising power conversion systems for modern distributed generation. Noticeable attempt to overcome the restriction of the DC link current continuity in single phase CSI's by operating as a soft-switching converter with additional semiconductors to secure the DC current path [29] again with the same drawback of extra hardware similar to the three-phase CSI [14][15][16].…”

“…Traditional implementation in medium voltage drives limits the carrier frequency in CSI's modulation, hence selective harmonics elimination (SHE) PWM technique is widely used in these applications with the drawback of generally being offline [6][7][8][9][10][11] even with hybrid SHE-trapezoidal modulation [12][13]. Dynamic bilogic to trilogic translation enhances linear current feedback control algorithms but with complex computational load due to the need of decoupler processing stage and programmable array logic (PAL) translator [14][15]. As CSI's modulation is tied up with mandatory restriction, the DC link path must not be interrupted, efficient sophisticated carrier-based PWM techniques suitable for VSI's are difficult to implement.…”

Integral sliding mode control of a single-phase current-source inverter

“…The CSI drive, as compared with the voltage source inverter (VSI) drive, has the ability to boost output voltages [3]. This brings the possibility of another application for the CSI, namely as an uninterruptible power supply (UPS).…”

“…The current-source inverters (CSI) received a considerable attention by the researchers [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] due to thier attractive features such as regeneration capability when supplied from a thyristor rectifier, and a better load voltage with low total harmonic distortion (THD). The CSI drive, as compared with the voltage source inverter (VSI) drive, has the ability to boost output voltages [3].…”

Dynamic Modeling and Analysis of Single-Stage Boost Inverters under Normal and Abnormal Conditions

“…The application of this topology was reported by [13][14][15] as a gridconnected single-stage inverter for distributed generation systems, specialized for residential PV applications. [16][17][18][19]. As can be seen in Figure 2.15, the current source inverter utilizes a series inductor at the dc-link and a capacitor bank at the ac-side.…”