Transformer-less Voltage Stabilizer Controlled By ProportionalPlus-Integral (PI) Controlle

Authors

  • Candidus U Eya University of Nigeria, Nsukka
  • Emenike C Ejiogu
  • Marcel U Agu
  • Damian B Nnadi

Abstract

Transformer-based voltage stabilizers are characterized by large size, heavy weight, noise
pollution, expensive production, unreliable operation and have limited ability to stabilize
output voltage. To overcome this problem, a pulse-width modulated transformerless voltage
stabilizer is considered in this paper. The output voltage variation is stabilized by Plus
Integral (PI) controller. The main properties of this proposed system are: (i) It is light in
weight and occupies small space; (ii) It has low total harmonic distortions; (iii) the output
possesses pure sine wave signals; (iv) It is very cheap for mass production. In this paper, we
applied the modulation index of 0.86 in the proposed system (PS). The total harmonic
distortion, THD of 3.968% was realized and we ensured constant voltage output of proposed
system within the input voltage band of (120-230) VAC. The proposed topic can be applied at
homes, offices and also in industries.

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Published

2019-12-28

How to Cite

Candidus U Eya, Emenike C Ejiogu, Marcel U Agu, & Damian B Nnadi. (2019). Transformer-less Voltage Stabilizer Controlled By ProportionalPlus-Integral (PI) Controlle. Journal of Power Electronics and Devices, 4(3), 42–51. Retrieved from http://matjournals.co.in/index.php/JOPED/article/view/6480

Issue

Vol. 4 No. 3 (2019)

Section

Articles