RESONANT (P plus RES) CONTROLLER APPLIED TO VOLTAGE SOURCE INVERTER WITH MINIMUM DC LINK CAPACITOR

Author(s)

Gazoli, Jonas Rafael ; de Oliveira F, Milton Evangelista ; Espindola, Marcos Fernando ; de Siqueira, Thais Gama ; Villalva, Marcelo Gradella ; Ruppert, Ernesto ; IEEE

• Document type: Journal article
• Source: XI BRAZILIAN POWER ELECTRONICS CONFERENCE (COBEP 2011); v. N/A, p. 6-pg., 2011-01-01.

Abstract

Voltage source inverters use large electrolytic capacitors in order to decouple the energy between the utility and the load, keeping the DC link voltage constant. Decreasing the capacitance reduces the distortion in the inverter input current but this also affects the load with low-order harmonics and generate disturbances at the input voltage. This paper applies the P+RES controller to solve the challenge of regulating the output current by means of controlling the magnitude of the current space vector, keeping it constant thus rejecting harmonic disturbances that would otherwise propagate to the load. This work presents a discussion of the switching and control strategy. (AU)

• FAPESP's process: 08/07956-4 - Single-phase Micro-inverter for Grid-connected Photovoltaic Systems
• Grantee: Jonas Rafael Gazoli
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 10/15848-7 - Research and development of power converters for photovoltaic distributed generation systems
• Grantee: Marcelo Gradella Villalva
• Support Opportunities: Scholarships in Brazil - Post-Doctoral