Current Sensorless Based on PI MPPT Algorithms

Moacyr A G de Brito; Guilherme M S Martines; Anderson S Volpato; Ruben B Godoy; Edson A Batista

doi:10.3390/s23104587

Current Sensorless Based on PI MPPT Algorithms

Sensors (Basel). 2023 May 9;23(10):4587. doi: 10.3390/s23104587.

Authors

Moacyr A G de Brito¹, Guilherme M S Martines¹, Anderson S Volpato¹, Ruben B Godoy¹, Edson A Batista¹

Affiliation

¹ Electrical Engineering Department, Faculty of Engineering, Architecture and Urbanism and Geography-FAENG, Federal University of Mato Grosso do Sul-UFMS, Costa e Silva Avenue, Campo Grande 79070-900, MS, Brazil.

Abstract

This paper presents novel current sensorless maximum-power point-tracking (MPPT) algorithms based on compensators/controllers and a single-input voltage sensor. The proposed MPPTs eliminate the expensive and noisy current sensor, which can significantly reduce the system cost and retain the advantages of the widely used MPPT algorithms, such as Incremental Conductance (IC) and Perturb and Observe (P&O) algorithms. Additionally, it is verified that the proposed algorithms, especially the proposed Current Sensorless V based on PI, can reach outstanding tracking factors (TFs) such as the IC and P&O based on PI algorithms. In this sense, the insertion of controllers inside the MPPT gives them adaptive characteristics, and the experimental TFs are in the remarkable range of more than 99%, with an average yield of 99.51% and a peak of 99.80%.

Keywords: MPPT; controllers; reduced cost; sensorless.

Grants and funding

This work was supported in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001 and the Research and Development Project-P&D ANEEL. PD-06961-0010/2019.