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This paper presents a multiobjective control scheme based on the dynamic model of three-level, neutral-point-clamped voltage source inverter for integration of distributed generation (DG) resources based on renewable energy resources to the distribution grid. The proposed model has been derived from the
abc/αβ and αβ/dq transformation of the AC system variables. The proposed control technique generates the compensation current
references and by setting appropriate references of DG control loop, the DG link not only provides active and reactive currents in fundamental frequency, but also it can supply nonlinear load harmonic currents with a fast dynamic response. Simulation results and mathematical analysis have achieved a reduced total harmonic distortion, increased power factor, inject maximum power of renewable energy resources via a multilevel converter as an interface to the AC grid. It also compensated the active and reactive powers of linear and nonlinear loads. The analyses and simulation results show the high performance of proposed
control scheme in the integration of renewable energy resources to the AC grid.
CitationPouresmaeil, E.; Montesinos-Miracle, D.; Gomis-Bellmunt, O. Control scheme of three level NPC inverter for integration of renewable energy resources into AC grid. "IEEE systems journal", Juny 2012, vol. 2, núm. 6, p. 242-253.
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