Design and Validation of A 250-kW All-Silicon Carbide High-Density Three-Level T-Type Inverter

Wang, Zhongjing; Wu, Yuheng; Mahmud, Mohammad Hazzaz; Zhao, Zhe; Zhao, Yue; Mantooth, H. Alan

doi:10.1109/jestpe.2019.2951625

Cited by 58 publications

(12 citation statements)

References 22 publications

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“…The T-type method uses the same switch signals of the three-level NPC method modulation. A simple delay between switching on and off is applied to avoid a short circuit in a DC link [14][15][16]. [5,14,15,16]…”

Section: T-type Convertermentioning

confidence: 99%

“…b. [5,[14][15][16], the current flows from output terminal to VDC (-) via A4 when A4 switches on. A simple delay between switching on and off is applied to avoid a short circuit in a DC link.…”

Section: Table I Switching Statesmentioning

confidence: 99%

“…Grid and rotor side converters are used to supply the electrical energy generated by the double feed induction generator. The grid and rotor side controllers are designed to correct the electrical energy produced in the generator to meet the requirements of the load [9][10][11][12][13][14][15][16][17][18][19]. The three-phase T-type converter is given in Fig.…”

Section: The Proposed Modelmentioning

confidence: 99%

“…3. The switching states of T-type converter are illustrated in Table I [5,[14][15][16][17][18][19]. The switching states are the negative (N), neutral (0), and the positive (P) of dc-link voltage level.…”

Section: T-type Convertermentioning

confidence: 99%

“…a. [5,[14][15][16], the current flows from VDC (+) via A1 to output terminal when A1…”

Section: Table I Switching Statesmentioning

confidence: 99%

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Comparison of T-Type Converter and NPC for the Wind Turbine Based on Doubly-Fed Induction Generator

Gencer

2021

Balkan Journal of Electrical and Computer Engineering

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A three-phase T-type converter topology proposes for wind turbine based on doubly fed induction generator (DFIG). The proposed converter consists of only twelve power switches without flying capacitors or any clamping diodes. The proposed system is implemented to grid side converter of wind turbine. Fuzzy logic controllers are more widely used in wind turbines compared to traditional control systems. Fuzzy logic PI controller has been applied to T-type and the conventional neutral-point clamped (NPC) converters control circuits. Total harmonic distortion (THD) value of current of presented system is measured as 1.76%. Also, DC-link voltage utilization can be maintained. Comparisons are conducted with T-type converter and a 3L-NPC) method under same operation conditions. The proposed scheme has been carried out to verify in simulation results.

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