“Performance Evaluation of a Proportional Integral with Proportional Derivative Feedforward Voltage Control for UPSs”-Tiago J. C. Sousa, Vítor Monteiro, Júlio S. Martins, J. C. Aparício Fernandes, João L. Afonso----ALGORITMI Research Centre – University of Minho Guimarães – Portugal

 Performance Evaluation of a Proportional-Integral with Proportional-Derivative Feedforward Voltage Control for UPSs 

Tiago J. C. Sousa, Vítor Monteiro, Júlio S. Martins, J. C. Aparício Fernandes, João L. Afonso ALGORITMI Research Centre – University of Minho Guimarães – Portugal 

 Abstract—This paper presents a performance evaluation of a proportional-integral (PI) with proportional-derivative (PD) feedforward control for the output voltage of a single-phase off-line uninterruptible power supply (UPS) without using additional sensors. The control system is explained and simulation results are presented to analyze the steady state and transient response of the implemented voltage control. A laboratorial prototype was developed, and acquired experimental results considering linear and nonlinear loads are presented and discussed, corroborating the obtained simulation results.

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