Control System Development for the Three-Ports ANPC Converter

Silvio Antonio Teston, Kaio Vinicius Vilerá, Marcello Mezaroba and Cassiano Rech
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Silvio Antonio Teston: Department of Physical Facilities, Federal University of Fronteira Sul, Chapecó-SC 89802-112, Brazil
Kaio Vinicius Vilerá: Power Electronics and Control Research Group (GEPOC), Federal University of Santa Maria, Santa Maria-RS 97105-900, Brazil
Marcello Mezaroba: Electric Power Processing Group, Santa Catarina State University, Joinville-SC 89219-710, Brazil
Cassiano Rech: Power Electronics and Control Research Group (GEPOC), Federal University of Santa Maria, Santa Maria-RS 97105-900, Brazil

Energies, 2020, vol. 13, issue 15, 1-14

Abstract: This paper proposes a control system for the single-phase Three-Ports Active Neutral- Point-Clamped (ANPC-3P) converter, which can inject a sinusoidal current into the grid, balance the neutral point voltage, and regulate the energy storage system (ESS) current with reduced low-frequency ripple. Despite other applications, ANPC-3P inverter can be used in grid-tied renewable generation to allow the simultaneous connection of a photovoltaic (PV) energy source and an ESS to the AC grid. The ESS is connected directly to the inverter circuit without any auxiliary DC-DC converter, but due to the DC bus pulsed power, it can be subjected to low-frequency current ripple. This undesired current ripple is difficult to filter and can lead to shorter battery life. A control system based on well-known controllers is analyzed and designed. Theoretical analysis is validated experimentally using a single-phase 1-kW prototype.

Keywords: active neutral-point-clamped (ANPC) converter; control system; distributed power generation; energy storage; integrated secondary DC port; low-frequency current ripple (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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