Loss Analysis and Comparison of High Power Semiconductor Devices in 5MW PMSG MV Wind Turbine Systems

Lee, Kihyun; Suh, Yongsug; Kang, Yong-Cheol

doi:10.6113/jpe.2015.15.5.1380

Cited by 13 publications

(7 citation statements)

References 22 publications

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“…One solution to the above problems is the use of fairly accurate equations for calculating the switching energy losses of a switch, using (23) and (24) [21]…”

Section: Calculating the Switching Power Lossesmentioning

confidence: 99%

“…If the amounts of V CC and I C in (23) and (24) were constant, then P sw which is the average switching power loss during a period of V o , could be calculated by (26). In this equation, f sw is the switching frequency.…”

Section: Calculating the Switching Power Lossesmentioning

confidence: 99%

“…Using this model in [22, 23], the forward on‐state‐voltage of the switch

v_{normalC E_{on}} ()(, t)

is represented by (30). In [23], by substituting (30) into (28), an equation is derived for calculating

\bar{P_{on}}

as (31).…”

Section: Calculating the Converters’ Power Lossesmentioning

confidence: 99%

“…Using this model in [22, 23], the forward on‐state‐voltage of the switch

v_{normalC E_{on}} ()(, t)

is represented by (30). In [23], by substituting (30) into (28), an equation is derived for calculating

\bar{P_{on}}

as (31). In this equation, I ave and I rms are the average and rms values of switch current i C ( t ), respectively,

v_{normalC E_{on}} false(t false) = V_{T} + R_{on} \cdot i_{C} ()(, t)

\bar{P_{on}} = V_{T} \cdot falsefalse| I_{ave} falsefalse| + R_{on} \cdot I_{rms}^{2}

…”

Section: Calculating the Converters’ Power Lossesmentioning

confidence: 99%

See 3 more Smart Citations

High‐efficiency voltage source converter with low switching power losses for application in islanded microgrids

Hasari¹,

Salemnia²,

Hamzeh³

2017

IET Renewable Power Generation

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In the conventional inverter, the switching power losses cause the inverter efficiency to decrease at high switching frequencies. In this study, a new structure of a single-phase voltage-source inverter with low switching losses is proposed, for application in islanded AC grids. This converter is composed of two single-phase series inverters, with different switching frequencies. The main feature of the proposed converter is that, the total losses of the proposed converter are fewer than the total losses of a conventional single-phase inverter, at high switching frequencies. The proposed converter is designed by the appropriate power transistors in the market. By providing a suitable method for calculating the transistor power losses, the switching and conduction losses of the proposed converter are calculated, and compared with losses of a conventional singlephase inverter. The mathematical model of the proposed converter is derived and used along with root-locus and frequencyresponse analysis, for designing the controllers. The performance of the proposed converter has been assessed using the simulation studies in MATLAB/SIMULINK software environment.

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“…One solution to the above problems is the use of fairly accurate equations for calculating the switching energy losses of a switch, using (23) and (24) [21]…”

Section: Calculating the Switching Power Lossesmentioning

confidence: 99%

Section: Calculating the Switching Power Lossesmentioning

confidence: 99%

“…Using this model in [22, 23], the forward on‐state‐voltage of the switch

v_{normalC E_{on}} ()(, t)

is represented by (30). In [23], by substituting (30) into (28), an equation is derived for calculating

\bar{P_{on}}

as (31).…”

Section: Calculating the Converters’ Power Lossesmentioning

confidence: 99%

“…Using this model in [22, 23], the forward on‐state‐voltage of the switch

v_{normalC E_{on}} ()(, t)

is represented by (30). In [23], by substituting (30) into (28), an equation is derived for calculating

\bar{P_{on}}

as (31). In this equation, I ave and I rms are the average and rms values of switch current i C ( t ), respectively,

v_{normalC E_{on}} false(t false) = V_{T} + R_{on} \cdot i_{C} ()(, t)

\bar{P_{on}} = V_{T} \cdot falsefalse| I_{ave} falsefalse| + R_{on} \cdot I_{rms}^{2}

…”

Section: Calculating the Converters’ Power Lossesmentioning

confidence: 99%

See 2 more Smart Citations

High‐efficiency voltage source converter with low switching power losses for application in islanded microgrids

Hasari¹,

Salemnia²,

Hamzeh³

2017

IET Renewable Power Generation

View full text Add to dashboard Cite

show abstract

“…During this time the drop voltage will be recorded using an oscilloscope memory. The power diode will be fixed to a heat sink [28][29]. A thermo-resistance is placed in a hole performed in the heat sink, at the interface with the case and the case temperature is measured by a thermo-resistance.…”

Section: Validation Of Transient Thermal Model Of the Power Diodementioning

confidence: 99%

Rectifier Dynamic Electro-Thermal Simulation for Power Factor Correction in Electric Vehicles Application

Ayadi¹,

Ghariani²,

Toumi³

2016

Journal of Electrical Engineering and Technology

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-This paper presents a PFCVF (Power Factor Correction) rectifier that uses a variable frequency source for alternators in electric and hybrid vehicles application. This technique allows to preserve a good THD (Total Harmonic Distortion) of the input source at any frequency and to decrease losses in semiconductors switches, thereby permitting more stability and decreasing the apparent power requirements. A comparative study between the standard and the new technique is made. A thermal network is used to calculate the junction temperatures in order to estimate the equivalent losses in the rectifier with respect of junction temperature modifications and power equilibrium. The relations of the proposed model are defined and simulation results as well as experimental results are discussed.

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Analysis and Design of a Single‐Stage IsolatedDC/ACConverter for a High‐Power‐Density OnboardACInverter

Itoh

Barrera-Cárdenas

Ishigaki

et al. 2021

IEEJ Transactions Elec Engng

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This paper proposes a single-stage DC/AC converter for the implementation of a high-power-density onboard AC inverter. The proposed circuit integrates a non-isolated DC/AC converter into an isolated DC/DC converter using only simple duty control and phase-shift modulation, which reduces the required number of semiconductor switches. Additionally, a coupling inductor and center-tapped transformer can be shared by the two converter functions, so they can be integrated without additional circuit components. This paper describes the operating principles of the proposed converter and design solutions are extracted using multi-objective optimization to achieve optimal performance in terms of power density and efficiency. Based on the design solution extracted through optimization, a prototype with a volume of 0.5 l was fabricated and a power density of 3.0 kW/l with an efficiency of 94.7% was achieved at a rated power of 1.5 kW.

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Loss Analysis and Comparison of High Power Semiconductor Devices in 5MW PMSG MV Wind Turbine Systems

Cited by 13 publications

References 22 publications

High‐efficiency voltage source converter with low switching power losses for application in islanded microgrids

High‐efficiency voltage source converter with low switching power losses for application in islanded microgrids

Rectifier Dynamic Electro-Thermal Simulation for Power Factor Correction in Electric Vehicles Application

Analysis and Design of a Single‐Stage IsolatedDC/ACConverter for a High‐Power‐Density OnboardACInverter

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