Current Sensorless Pole-Zero Cancellation Output Voltage Control for Uninterruptible Power Supply Systems with a Three-Phase Inverter
This article presents a proportional–derivative (PD) type output voltage regulator without the current feedback, taking into account system parameter and load variations. The main advantages are given as follows: First, the first-order output voltage derivative observer is developed without the requ...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/7/1738 |
| _version_ | 1797212674413559808 |
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| author | Hosik Lee Yonghun Kim Seok-Kyoon Kim |
| author_facet | Hosik Lee Yonghun Kim Seok-Kyoon Kim |
| author_sort | Hosik Lee |
| collection | DOAJ |
| description | This article presents a proportional–derivative (PD) type output voltage regulator without the current feedback, taking into account system parameter and load variations. The main advantages are given as follows: First, the first-order output voltage derivative observer is developed without the requirement of system parameter information, which makes it possible to stabilize the system without current sensing. Second, a simple self-tuner implements the feedback-loop adaptation by updating the desired dynamics accordingly. Third, the observer-based active damping injection for the PD-type controller results in the closed-loop system order reduction to 1 by the pole-zero cancellation, including the disturbance observer as a feed-forward term. The prototype uninterruptible power supply system comprised of a 3 kW three-phase inverter, inductors, and capacitors verifies the practical merits of the proposed technique for linear and nonlinear loads. |
| first_indexed | 2024-04-24T10:46:08Z |
| format | Article |
| id | doaj.art-f5710466eb104b07a1f372fe01255e0f |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-24T10:46:08Z |
| publishDate | 2024-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-f5710466eb104b07a1f372fe01255e0f2024-04-12T13:18:13ZengMDPI AGEnergies1996-10732024-04-01177173810.3390/en17071738Current Sensorless Pole-Zero Cancellation Output Voltage Control for Uninterruptible Power Supply Systems with a Three-Phase InverterHosik Lee0Yonghun Kim1Seok-Kyoon Kim2Green Mobility Team, Tenergy, Suwon 18487, Republic of KoreaSchool of Mechanical Engineering, Chungnam National University, Daejeon 34134, Republic of KoreaDepartment of Creative Convergence Engineering, Hanbat National University, Daejeon 34158, Republic of KoreaThis article presents a proportional–derivative (PD) type output voltage regulator without the current feedback, taking into account system parameter and load variations. The main advantages are given as follows: First, the first-order output voltage derivative observer is developed without the requirement of system parameter information, which makes it possible to stabilize the system without current sensing. Second, a simple self-tuner implements the feedback-loop adaptation by updating the desired dynamics accordingly. Third, the observer-based active damping injection for the PD-type controller results in the closed-loop system order reduction to 1 by the pole-zero cancellation, including the disturbance observer as a feed-forward term. The prototype uninterruptible power supply system comprised of a 3 kW three-phase inverter, inductors, and capacitors verifies the practical merits of the proposed technique for linear and nonlinear loads.https://www.mdpi.com/1996-1073/17/7/1738uninterruptible power supplyvoltage controlobserveractive dampingpole-zero cancellation |
| spellingShingle | Hosik Lee Yonghun Kim Seok-Kyoon Kim Current Sensorless Pole-Zero Cancellation Output Voltage Control for Uninterruptible Power Supply Systems with a Three-Phase Inverter Energies uninterruptible power supply voltage control observer active damping pole-zero cancellation |
| title | Current Sensorless Pole-Zero Cancellation Output Voltage Control for Uninterruptible Power Supply Systems with a Three-Phase Inverter |
| title_full | Current Sensorless Pole-Zero Cancellation Output Voltage Control for Uninterruptible Power Supply Systems with a Three-Phase Inverter |
| title_fullStr | Current Sensorless Pole-Zero Cancellation Output Voltage Control for Uninterruptible Power Supply Systems with a Three-Phase Inverter |
| title_full_unstemmed | Current Sensorless Pole-Zero Cancellation Output Voltage Control for Uninterruptible Power Supply Systems with a Three-Phase Inverter |
| title_short | Current Sensorless Pole-Zero Cancellation Output Voltage Control for Uninterruptible Power Supply Systems with a Three-Phase Inverter |
| title_sort | current sensorless pole zero cancellation output voltage control for uninterruptible power supply systems with a three phase inverter |
| topic | uninterruptible power supply voltage control observer active damping pole-zero cancellation |
| url | https://www.mdpi.com/1996-1073/17/7/1738 |
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