In order to decrease the switching loss of auxiliary circuit resonant dc-link (RDCL) inverter and improve voltage utilization system efficiency, this article presents a new space vector pulsewidth modulation (SVPWM) method based on zero-voltage notch RDCL inverter. This reduces current stress in main by paralleling switch. And makes operation (ARC) less frequent, thus reducing losses ARC and, therefore, improving efficiency. At same time, analyzes compensates for missing vectors ideal output...

In order to solve the output voltage loss problem caused by zero-voltage notch of resonant dc-link (RDCL) inverter and improve system efficiency, this article proposes an RDCL its compensation method. The topology auxiliary circuit is simpler, current separated from load parallel switch, which reduces stress main switches. At same time, method based on conventional sinusoidal pulsewidth modulation (SPWM); first calculates operation time magnitude phase current, second adjusts position...

The modulation strategy of the auxiliary resonant commutation circuit (ARCC) original pole three-level T-type inverter (ARPT-TNPC) is complicated and main switch ARPT-TNPC cannot realize soft switching. To address issues, this paper proposes an improved gives a suitable for ARCC. Compared with inverter, can firstly ensure soft-switching all switches, avoiding problem that soft-switching, which further improve efficiency. Secondly, ARCC operates only during dead time, thus reducing operation...

The precharging process of the auxiliary circuit resonant pole inverter increases current stress switch and loss inverter. To overcome these problems, this article proposes an soft-switching with low current. In contrast to existing inverter, can effectively decrease circuit, thus reducing switch, lowering conduction improving efficiency. Moreover, main share a common capacitor, which reduces resulting from reactive energy conversion commutation so that achieves purpose simplicity On basis...

During the resonant process, element of dc-link inverter (RDCLI) auxiliary circuit (ARC) resonates with shunt capacitors main switch, which will increase current stress switch and affect waveform quality output waveform. To address this problem, article proposes an improved RDCLI. Compared original RDCLI, simplifies topological complexity ARC by reducing switching devices. In meanwhile, does not require capacitors, so there is no in switch. addition, during zero-voltage notch, also flow...

The auxiliary circuit of the resonant dc link (RDCL) inverter is likely to cause soft-switching failure and voltage loss problems when it operates frequently under small pulses. To solve those problems, this article proposes an FPGA-based sine pulsewidth modulation method (SPWM) with triangular carrier. This can operation problem pulses, does not need acquire load current, but only judges width pulse based on magnitude modulating waveforms, so as restructure driving signals inside FPGA avoid...

Abstract This paper proposes a simple and efficient resonant DC link inverter topology with low current stress on main switches. The has straightforward structure is readily controllable, avoids the auxiliary passing through switches of inverter, remains consistently equivalent to load current, thus reducing switching loss switches, thereby inverter’s efficiency increased. proposed operating principle examined contrasted described in literature. Ultimately, validity demonstrated simulation.

Abstract To further streamline the architecture of resonant DC link inverter, this article shows an improved inverter with straightforward architecture. There is no oscillating capacitor on main tubes. Part current during resonance detached from The soft-switching action all tubes topology can be effectuated by using a set cavities, and its simple. It has for ZVS movement auxiliary ZCS movement. Also, circuit controllable zero voltage notch duration. will elaborate operating scheme circuit....

The resonant current of the dc link inverter is superimposed on main switch in periods zero-voltage notch creation, which increases stress as well conduction loss switch, and inevitably escalates selection cost circuit. To solve these problems, a parallel with low proposed this article. does not need capacitors, it also ensures that remains at load value during whole resonance process or notch, thus effectively reduces thereby hardware circuit can be further diminished. At same time,...