Non-linear PID control of AC current and DC voltage for a photovoltaic system operating on a microgrid
This study introduces a nonlinear control strategy to enhance the energy management of electrical power systems, addressing the inherent limitations of traditional linear PI controllers. The proposed approach incorporates a variable gain that dynamically adjusts based on the system error, amplifying...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Results in Control and Optimization |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666720724001437 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841555660216467456 |
|---|---|
| author | Pablo Proaño Marcelo Pozo Carlos Gallardo Oscar Camacho |
| author_facet | Pablo Proaño Marcelo Pozo Carlos Gallardo Oscar Camacho |
| author_sort | Pablo Proaño |
| collection | DOAJ |
| description | This study introduces a nonlinear control strategy to enhance the energy management of electrical power systems, addressing the inherent limitations of traditional linear PI controllers. The proposed approach incorporates a variable gain that dynamically adjusts based on the system error, amplifying the PI controller’s responsiveness without causing output saturation. By introducing quadratic error terms through the gain adjustment, the controller achieves nonlinear behavior. When the system error is significant, the gain increases to expedite correction; as the error approaches zero, the gain decreases, allowing the PI controller to maintain stability around the reference. This adaptive behavior eliminates the need for a derivative component, effectively circumventing challenges posed by electromagnetic noise and rapid system dynamics. A comparative analysis between the proposed nonlinear PI controller and a conventional PI controller is conducted within a photovoltaic microgrid framework. The results highlight the nonlinear controller’s superior performance in achieving robust and accurate control. |
| format | Article |
| id | doaj-art-2ca6c5c9315a4874a904ceaf4348ce7c |
| institution | Kabale University |
| issn | 2666-7207 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Control and Optimization |
| spelling | doaj-art-2ca6c5c9315a4874a904ceaf4348ce7c2025-01-08T04:53:44ZengElsevierResults in Control and Optimization2666-72072025-03-0118100514Non-linear PID control of AC current and DC voltage for a photovoltaic system operating on a microgridPablo Proaño0Marcelo Pozo1Carlos Gallardo2Oscar Camacho3Departamento de Automatización y Control Industrial, Escuela Politécnica Nacional, 170143 Quito, Ecuador; Corresponding author.Departamento de Automatización y Control Industrial, Escuela Politécnica Nacional, 170143 Quito, EcuadorDepartamento de Energía Eléctrica, Escuela Politécnica Nacional, 170143 Quito, EcuadorColegio de Ciencias e Ingenierías, Universidad San Francisco de Quito USFQ, 170157 Quito, EcuadorThis study introduces a nonlinear control strategy to enhance the energy management of electrical power systems, addressing the inherent limitations of traditional linear PI controllers. The proposed approach incorporates a variable gain that dynamically adjusts based on the system error, amplifying the PI controller’s responsiveness without causing output saturation. By introducing quadratic error terms through the gain adjustment, the controller achieves nonlinear behavior. When the system error is significant, the gain increases to expedite correction; as the error approaches zero, the gain decreases, allowing the PI controller to maintain stability around the reference. This adaptive behavior eliminates the need for a derivative component, effectively circumventing challenges posed by electromagnetic noise and rapid system dynamics. A comparative analysis between the proposed nonlinear PI controller and a conventional PI controller is conducted within a photovoltaic microgrid framework. The results highlight the nonlinear controller’s superior performance in achieving robust and accurate control.http://www.sciencedirect.com/science/article/pii/S2666720724001437Nonlinear process controlRenewable energy resource controlControl system designPower electronics application and modelingPower system simulation |
| spellingShingle | Pablo Proaño Marcelo Pozo Carlos Gallardo Oscar Camacho Non-linear PID control of AC current and DC voltage for a photovoltaic system operating on a microgrid Results in Control and Optimization Nonlinear process control Renewable energy resource control Control system design Power electronics application and modeling Power system simulation |
| title | Non-linear PID control of AC current and DC voltage for a photovoltaic system operating on a microgrid |
| title_full | Non-linear PID control of AC current and DC voltage for a photovoltaic system operating on a microgrid |
| title_fullStr | Non-linear PID control of AC current and DC voltage for a photovoltaic system operating on a microgrid |
| title_full_unstemmed | Non-linear PID control of AC current and DC voltage for a photovoltaic system operating on a microgrid |
| title_short | Non-linear PID control of AC current and DC voltage for a photovoltaic system operating on a microgrid |
| title_sort | non linear pid control of ac current and dc voltage for a photovoltaic system operating on a microgrid |
| topic | Nonlinear process control Renewable energy resource control Control system design Power electronics application and modeling Power system simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2666720724001437 |
| work_keys_str_mv | AT pabloproano nonlinearpidcontrolofaccurrentanddcvoltageforaphotovoltaicsystemoperatingonamicrogrid AT marcelopozo nonlinearpidcontrolofaccurrentanddcvoltageforaphotovoltaicsystemoperatingonamicrogrid AT carlosgallardo nonlinearpidcontrolofaccurrentanddcvoltageforaphotovoltaicsystemoperatingonamicrogrid AT oscarcamacho nonlinearpidcontrolofaccurrentanddcvoltageforaphotovoltaicsystemoperatingonamicrogrid |