VOLTAGE CONTROL IN 300 KVA STABILIZERS USING A PIC18F4550 MICROCONTROLLER: DESIGN, SIMULATION, AND TESTING
Article Sidebar
Main Article Content
Abstract
A control system was developed for a 300 kVA Samlex industrial voltage stabilizer to improve
electrical stability at Gurimetal's facilities. Due to the lack of technical documentation, the
equipment was characterized through no-load and load testing. Based on this analysis, a
control board using the PIC18F4550 microcontroller was designed to monitor key electrical
parameters in real time, such as voltage and frequency, enabling precise output adjustments
to maintain voltage within required operating ranges. The system included signal conditioners
and hardware-based protection mechanisms against overvoltage, overcurrent, and overload,
as well as thermal protection for the stabilizer's contactors. These safety features prevent
damage to sensitive components and ensure stable performance under load variations. The
design was validated through simulations and prototype testing before final production.
Results confirmed the system’s ability to maintain stable voltage levels within acceptable
limits, even under input fluctuations.
Downloads
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
IEC. (2023). IEC 61000-4-30: Electromagnetic compatibility (EMC) – Part 4-30: Testing and measurement techniques – Electromagnetic compatibility for power quality measurement equipment (6th ed.). International Electrotechnical Commission.
IEEE. (2014). IEEE recommended practices and requirements for harmonic control in electrical power systems (IEEE Std 519-2014). Institute of Electrical and Electronics Engineers. 10.1109/IEEESTD.2014.6826459
Kundur, P. (1994). Power system stability and control. McGraw-Hill.
Labcenter, E. (s.f.). Proteus 8 [Software]. https://www.labcenter.com/
Legarreta, A. (2011, October). An IEC 61000-4-30 class A—Power quality monitor: Development and performance analysis. In 11th International Conference on Electrical Power Quality and Utilisation (pp. 1–6). IEEE. 10.1109/EPQU.2011.6128813
López, J. (2021). Diseño e implementación de un módulo de entrenamiento para microcontrolador 18F4550 con software didáctico para la materia de microcontroladores I y II Tesis de Licenciatura, Universidad Técnica de Ambato. http://dspace.ups.edu.ec/handle/123456789/21123
Microchip Technology. (2009). PIC18F4550 datasheet (Document No. DS39632E). https://ww1.microchip.com/downloads/en/DeviceDoc/39632E.pdf
Moreno, A. (2014). Design of a multilevel class D voltage amplifier for relay testing. IEEE Latin America Transactions, 12(4), 543–549. https://doi.org/10.1109/TLA.2014.6893990
Neumann, R. (2007, October). The importance of IEC 61000-4-30 class A for the coordination of power quality levels: Is it important? In 2007 9th International Conference on Electrical Power Quality and Utilisation (pp. 1–4). IEEE. 10.1109/EPQU.2007.4424226
Pérez, L. (2019). Metodología para la coordinación de los elementos sobrecorrientes y optimización de los esquemas de protección en emplazamiento diesel de generación distribuida. XVIII Simposio Internacional de Ingeniería Eléctrica (SIE 2019).
Viteri, R. (2019). Sistema digital inteligente de protección eléctrica, con supresor de picos y detección de cruce por cero para uso residencial [Tesis de Licenciatura, Escuela Politécnica Nacional. http://repositorio.uisrael.edu.ec/handle/47000/1903
Vivas, A. (2023). Diseño de una tarjeta de control para la máquina estabilizadora de voltaje de 300KVA marca Samlex [Tesis de Licenciatura, Universidad Nacional Experimental del Táchira]. https://repositorio.unet.edu.ve:8443/jspui/handle/123456789/1899