In addition to having fewer components and higher efficiency, the dc voltage utilization ratio of the inverter is 2.5 times that of the traditional inverter such as Neutral Point Clamped (NPC), FC, and Active NPC (ANPC).
The inverter essentially converts the input DC voltage into voltage pulses through pulse width modulation (PWM) such that the average voltage during a given switching period equals the desired voltage command . The motor then generates current and torque which are applied to the mechanical system within which the electric motor drive is used.
The inverter can output a fundamental voltage four times the dc-link voltage. However, there is no doubt that with the increase of the dc sources number, the cost of the entire system will increase significantly.
The higher operation efficiency can also be obtained, reaching 98.1%. With the same power, the proposed inverter has higher efficiency than other advanced inverters. In general, the proposed inverter has great advantages in the number of components, voltage stress of switching devices, dc voltage utilization and operation efficiency.
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In this paper, a modified method named reconstructed carrier quasi-trapezoidal pulse width modulation (RC-qTPWM) is proposed to improve the DC voltage utilization ratio, …
Then, the improved CPS-PWM control strategy which can improve the DC voltage utilization of the PV cascaded inverter is analyzed, and the control strategy of intra-phase …
In the three-phase bridge inverter, the DC voltage utilization rate of the conventional SPWM control method is only 0.866, and the DC voltage utilization ratio of the relatively …
The inverter essentially converts the input DC voltage into voltage pulses through pulse width modulation (PWM) such that the average voltage during a given switching period …
To obtain both good dc voltage utilization and good EMC performance, it is proposed to use a split-link inverter with an active balancing circuit (also eight switches). The …
voltages, switching losses of inverters, and maximum output voltage. For these criteria, the modulation signals, DC bus voltage utilization, and output line voltage harmonic are the main …
The main characteristics of SVPWM include higher utilization of DC supply voltage. Furthermore, SVPWM generates smoother motor current waveforms and reduces the …
This paper proposes a new hybrid nine-level inverter topology with high efficiency and high dc voltage utilization ratio, which provides a potential for renewable energy power …
1) The dc voltage utilization rate is doubled compared with traditional three-phase five-level NPC, ANPC, and FC inverter families, while the voltage stress on each switch is Vdc/2.
In the frequency conversion device, the DC voltage utilization rate is one of the important indicators to measure the advantages and disadvantages of the modulation method, …
This work proposes a low-cost hardware circuit integrated in the PV module junction box, which can increase the DC voltage utilization rate and capacity ratio of the system by …
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