Harmonic Analysis and Controller Design of 15 kV SiC IGBT-Based Medium-Voltage Grid-Connected Three-Phase Three-Level NPC Converter
Sachin Madhusoodhanan,Krishna Mainali,Awneesh Tripathi,Dhaval Patel,Arun Kadavelugu,Subhashish Bhattacharya,Kamalesh Hatua +6 more
TLDR
In this article, the harmonic performance and current distortion of the grid-connected, three-level neutral point clamped converter using 15 kV silicon carbide Insulated Gate Bipolar Transistor (IGBTs) are investigated.Abstract:
Cascaded converters are generally used for medium-voltage (MV) grid-connected applications due to the limitation in the voltage rating of available silicon (Si) power devices. These converters find application in active power filters, STATCOM or as the active front end converters for solid state transformers at the distribution voltage levels. The high voltage wide bandgap semiconductor devices have enabled the grid connected operation of noncascaded converters. This results in high power density, less number of switching devices, and high efficiency for three-phase MV grid interface. This also results in control simplicity without the need for complex dc bus balancing algorithms otherwise needed for cascaded converters. However, such noncascaded, grid-connected converters introduce challenges in maintaining power quality at low currents. This paper investigates the harmonic performance and current distortion of the grid-connected, three-level neutral point clamped converter using 15 kV silicon carbide Insulated Gate Bipolar Transistor (IGBTs). A suitable control scheme for stable harmonic compensation is proposed. The challenges and control performance are explained through frequency domain analysis, simulations, and experimental validation on a developed prototype of the three-phase converter up to 4.16 kV, three-phase MV grid-connected operation.read more
Citations
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Journal ArticleDOI
State of the art of solid-state transformers: Advanced topologies, implementation issues, recent progress and improvements
Mahammad A. Hannan,Pin Jern Ker,Molla Shahadat Hossain Lipu,Zhen Hang Choi,M. Safwan Abd. Rahman,Kashem M. Muttaqi,Frede Blaabjerg +6 more
TL;DR: This review comprehensively reviews the SST topologies suitable for different voltage levels and with varied stages, their control operation, and different trends in applications and provides recommendations for the improvement of future SST configuration and development.
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A Novel Virtual Space Vector Modulation With Reduced Common-Mode Voltage and Eliminated Neutral Point Voltage Oscillation for Neutral Point Clamped Three-Level Inverter
TL;DR: A novel virtual space vector modulation, named as RCMV_VSVPWM, is proposed in this paper to reduce CMV and eliminate NP voltage oscillation for NPC TLI, and the highlight of the method is zero average NP current in one control cycle and lower CMV.
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High Order Voltage and Current Harmonic Mitigation Using the Modular Multilevel Converter STATCOM
TL;DR: This paper investigates the use of the multilevel modular converter (MMC) for harmonics mitigation due to its high bandwidth compared with conventional converters and proves the capability of the MMC to mitigate harmonics up to the thirteenth order, while maintaining a low effective switching frequency and thus, low switching losses.
Journal ArticleDOI
Solid State Transformers Topologies, Controllers, and Applications: State-of-the-Art Literature Review
TL;DR: A state-of-the-art review for SST proposed topologies, controllers, and applications is introduced and strengths, weaknesses, opportunities, and threats (SWOT) analysis along with a brief review of market drivers for prospective commercialisation are elaborated.
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Mitigation of Solar PV Intermittency Using Ramp-Rate Control of Energy Buffer Unit
TL;DR: A power management strategy to address the unpredictability of the solar irradiance fluctuations with two main operation modes: first, the load-feeding mode to minimize the grid power consumption by maximizing the local load consumption from both the PV and the EBU; second, the grid- feeding mode to smooth out the PV output fluctuation and to control the ramp rate to a desired value when supplying the grid.
References
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Proceedings ArticleDOI
Flux vector modulation for single-phase inverter with LC output filter
Dhaval Patel,Ritwik Chattopadhyay,Sachin Madhusoodhanan,Subhashish Bhattacharya,Rajendra R. Sawant,Mukul C. Chandorkar +5 more
TL;DR: In this article, a single-phase voltage source inverter (VSI) with a synchronously rotating reference frame (SRRF) proportional integral (PI) controller is used for output voltage control for stand-alone operation of inverter.