ESO-Based Robust Predictive Current Control of DFIG under Nonideal Grid Conditions

Shengan Zhang, Yongchang Zhang, Tao Jiang, Jose Rodriguez

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

When the doubly-fed induction generators (DFIGs) operate under unbalanced and distorted power grid conditions, the traditional control strategy can hardly maintain its original stable performance, resulting in distortion of the stator and rotor currents. In addition, when the motor parameters are affected by environmental factors and the machine's own design limitations, the performance of the controller used will also be further reduced. This paper proposes a robust predictive rotor current control (R-PRCC) scheme for a DFIG in order to obtain sinusoidal and balanced rotor current under complex operating conditions. The reference value of the positive sequence component of the rotor current is obtained by cascaded delayed signal cancellation (CDSC), and the total system disturbance caused by model uncertainty can be quickly estimated by the Extended State Observer (ESO). By combining with deadbeat control, the rotor current can be fast and accurately controlled. The proposed R-PRCC scheme is compared to conventional model predictive rotor current control (MPRCC). Simulated and experimental results obtained for a 1.5 kW laboratory DFIG system confirm the effectiveness of the proposed method.

Original languageEnglish
Title of host publication6th IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics, PRECEDE 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages610-615
Number of pages6
ISBN (Electronic)9781665425575
DOIs
Publication statusPublished - 2021
Event6th IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics, PRECEDE 2021 - Jinan, China
Duration: 20 Nov 202122 Nov 2021

Publication series

Name6th IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics, PRECEDE 2021

Conference

Conference6th IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics, PRECEDE 2021
Country/TerritoryChina
CityJinan
Period20/11/2122/11/21

Keywords

  • current control
  • predictive control
  • robustness

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Control and Systems Engineering

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