TY - GEN
T1 - Double-Carrier-Based PWM Theory for Independent Power Control of Dual-Input Three-level Inverters
AU - Ariyapuek, Monchai
AU - Suwankawin, Surapong
AU - Sangwongwanich, Somboon
AU - Sangwongwanich, Ariya
PY - 2022/7
Y1 - 2022/7
N2 - In this paper, double-carrier-based PWM theory for direct and independent power control for dual-input three-level inverters is proposed. With the proposed PWM strategy, the upper and lower dc bus voltages can be controlled separately in a decoupled manner. These characteristics are crucial in photovoltaic applications (PV) when tracking of maximum power points for two strings of PV panels under different irradiations is required. Independent control of input dc-bus power is achieved by simply decomposing the voltage command of the inverter in proportional to the required dc-bus power. Implementation of the proposed PWM strategy is also simple because it uses double carrier waveforms supported by PWM modules in most hardware. Effectiveness and feasibility of the proposed PWM theory are verified by experiment.
AB - In this paper, double-carrier-based PWM theory for direct and independent power control for dual-input three-level inverters is proposed. With the proposed PWM strategy, the upper and lower dc bus voltages can be controlled separately in a decoupled manner. These characteristics are crucial in photovoltaic applications (PV) when tracking of maximum power points for two strings of PV panels under different irradiations is required. Independent control of input dc-bus power is achieved by simply decomposing the voltage command of the inverter in proportional to the required dc-bus power. Implementation of the proposed PWM strategy is also simple because it uses double carrier waveforms supported by PWM modules in most hardware. Effectiveness and feasibility of the proposed PWM theory are verified by experiment.
KW - Double-carrier-based PWM
KW - dipolar PWM
KW - dual-input three-level inverter
KW - independent and direct power control
U2 - 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807229
DO - 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807229
M3 - Article in proceeding
SP - 940
EP - 944
BT - 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)
PB - IEEE
ER -