TY - GEN
T1 - Disturbance Observer-Based Feedback Linearization Control for Stand-Alone Inverters
AU - Stephen, Samantha
AU - Shareef, Hussain
AU - Errouissi, Rachid
AU - Viswambharan, Amulya
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/10/13
Y1 - 2021/10/13
N2 - This paper presents a disturbance observer-based control (DOBC) for stand-alone inverters to produce sinusoidal voltages. The controller is specifically designed to regulate the output voltage of the inverter to follow a desired sinusoidal voltage reference. The disturbance observer is employed to ensure accurate tracking of the voltage reference by compensating for model uncertainties and unknown inputs. The combination of a linearizing feedback control (LFC) with a disturbance observer (DO) makes it possible to perform dual functions by providing improved disturbance rejection during transients and attaining zero steady-state error thanks to the integral action property of the disturbance observer. The key feature of the proposed controller is that it is designed in the dq reference frame, but it is implemented in stationary αβ coordinates. The performance of the above controller during load variations is verified via simulation tests. The test results have demonstrated excellent disturbance attenuation to achieve good transient response during balanced and unbalanced load variations.
AB - This paper presents a disturbance observer-based control (DOBC) for stand-alone inverters to produce sinusoidal voltages. The controller is specifically designed to regulate the output voltage of the inverter to follow a desired sinusoidal voltage reference. The disturbance observer is employed to ensure accurate tracking of the voltage reference by compensating for model uncertainties and unknown inputs. The combination of a linearizing feedback control (LFC) with a disturbance observer (DO) makes it possible to perform dual functions by providing improved disturbance rejection during transients and attaining zero steady-state error thanks to the integral action property of the disturbance observer. The key feature of the proposed controller is that it is designed in the dq reference frame, but it is implemented in stationary αβ coordinates. The performance of the above controller during load variations is verified via simulation tests. The test results have demonstrated excellent disturbance attenuation to achieve good transient response during balanced and unbalanced load variations.
KW - Dirtuabnec obsrver
KW - linearizing feedback control
KW - renewable energy
KW - stand-alone inverters
UR - http://www.scopus.com/inward/record.url?scp=85119486603&partnerID=8YFLogxK
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U2 - 10.1109/IECON48115.2021.9589629
DO - 10.1109/IECON48115.2021.9589629
M3 - Conference contribution
AN - SCOPUS:85119486603
T3 - IECON Proceedings (Industrial Electronics Conference)
BT - IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society
PB - IEEE Computer Society
T2 - 47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021
Y2 - 13 October 2021 through 16 October 2021
ER -