TY - JOUR
T1 - Cascaded Extended State Observer-Based Sliding Mode Control for DC-DC Converter with Time- Varying Power Fluctuation
AU - Xu, Liangcai
AU - Liu, Jianxing
AU - Zhuo, Shengrong
AU - Huangfu, Yigeng
AU - Gao, Fei
N1 - Publisher Copyright:
IEEE
PY - 2022
Y1 - 2022
N2 - In this paper, a cascaded extended state observer- based sliding mode control (SMC) is proposed for the typical microgrid (MG) interfaced dc-dc boost converter. For a given MG system, the power fluctuation is unpredictable, which may cause an unstable dc-bus voltage. In that situation, all the dc-bus connected electronic loads cannot work normally. In order to maintain a stable dc-bus voltage, additional power sources with a suitable power converter and the advanced controller are necessary. Especially, the controller for the power converter plays a crucial role in reducing the power fluctuation and regulating the dc-bus voltage. In this paper, to improve the ability of the converters to reject external power disturbance, a cascaded extended state observer is designed to estimate the lumped disturbance more accurately. Besides, the continuous SMC method is adopted to provide a feedback control loop. The corresponding simulation results could highly validate the effectiveness of the proposed control method.
AB - In this paper, a cascaded extended state observer- based sliding mode control (SMC) is proposed for the typical microgrid (MG) interfaced dc-dc boost converter. For a given MG system, the power fluctuation is unpredictable, which may cause an unstable dc-bus voltage. In that situation, all the dc-bus connected electronic loads cannot work normally. In order to maintain a stable dc-bus voltage, additional power sources with a suitable power converter and the advanced controller are necessary. Especially, the controller for the power converter plays a crucial role in reducing the power fluctuation and regulating the dc-bus voltage. In this paper, to improve the ability of the converters to reject external power disturbance, a cascaded extended state observer is designed to estimate the lumped disturbance more accurately. Besides, the continuous SMC method is adopted to provide a feedback control loop. The corresponding simulation results could highly validate the effectiveness of the proposed control method.
KW - DC-DC converter
KW - DC-DC power converters
KW - Fluctuations
KW - Inductors
KW - Observers
KW - Power system stability
KW - Resistors
KW - Voltage control
KW - cascaded extended state observer
KW - sliding mode control
KW - time-varying disturbance
UR - http://www.scopus.com/inward/record.url?scp=85135208651&partnerID=8YFLogxK
U2 - 10.1109/TIA.2022.3191176
DO - 10.1109/TIA.2022.3191176
M3 - 文章
AN - SCOPUS:85135208651
SN - 0093-9994
SP - 1
EP - 6
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
ER -