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Sensorless Control Technologies for Stand-Alone and Grid-Connected Operation of Brushless Doubly-Fed Induction Generators in Smart Grid

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Advances in Control Techniques for Smart Grid Applications

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Abstract

This chapter handles the investigation of various proposed sensorless schemes of rotor position observer for brushless doubly-fed induction generator (BDFIG) systems based on both schemes of the model reference adaptive system (MRAS) and the high-frequency signal (HFS) injection methodology. The algorithm of MRAS is implemented with the functional quantity of CW reactive power (Q-MRAS) which can eliminate the integration process for the flux estimation and reduce the required sensors used to achieve the effective estimation of rotor position signal for BDFIGs. On the other side, the proposed methodology of CW-HFS injection approach is realized through the injection of HFS into the CW side while the resulted induced signal detected from the PW side will observe the information of rotor position. The proposed new position observer of CW-HFS injection offers a high-performance operation with a good tracking for the actual rotor position during various states of operation with any need for the machine parameters which would assure its reliability and strong robustness.

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Abbreviations

L 1 r :

Inductance of coupling between the rotor side and the PW

L 2 r :

Inductance of coupling between the rotor side and the CW

L 1 :

Self-inductance of the PW

L 2 :

Self-inductance of the CW

L r :

Self-inductance of the rotor-side

ω 1 :

Angular frequency of the PW

ω 2 :

Angular frequency of the CW

R 1 :

Resistance of the PW

R 2 :

Resistance of the CW

R r :

Resistance of the rotor side

Ψ1dq:

Flux linkages of the dq-axis for the PW

Ψ2dq:

Flux linkages of the dq-axis for the CW

Ψrdq:

Flux linkages of the dq-axis for the rotor side

i 1 dq :

dq-axis components of the PW

i 2 dq :

dq-axis components of the CW

i rdq :

dq-axis components of the rotor side

s :

The differential operator, d/dt

u 1 dq :

dq-axis voltages of PW

u 2 dq :

dq-axis voltages of CW

\(\omega _{hf}\) :

The frequency of the injected HFS

\(U_{2_{hf}}\) :

The magnitude of the injected HFS

\(k_{p_{MRAS} }\) :

Proportion parameter of the PI controller for the proposed observer

\(k_{i_{MRAS}}\) :

Integration parameter of the PI controller for the proposed observer

BDFIG:

Brushless doubly-fed induction generator

PW:

Power winding

CW:

Cower winding

DVC:

Direct voltage control

MRAS:

Model reference adaptive system

HFS:

High-frequency signal

PMSMs:

Permanent-magnet synchronous machines

IMs:

Induction machines

DFIGs:

Doubly-fed induction generators

PLL:

Phase-locked-loop

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Authors and Affiliations

  1. Huazhong University of Science and Technology, Wuhan, 430074, China

    Yi Liu & Wei Xu

  2. Department of Electrical Power and Machines Engineering, Faculty of Engineering, Tanta University, Tanta, Egypt

    Mohamed G. Hussien

Authors
  1. Yi Liu
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  2. Mohamed G. Hussien
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  3. Wei Xu
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Corresponding author

Correspondence to Mohamed G. Hussien .

Editor information

Editors and Affiliations

  1. Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh

    Sajal Kumar Das

  2. Faculty of Engineering and Information Sciences, School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW, Australia

    Md. Rabiul Islam

  3. School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China

    Wei Xu

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Liu, Y., Hussien, M.G., Xu, W. (2022). Sensorless Control Technologies for Stand-Alone and Grid-Connected Operation of Brushless Doubly-Fed Induction Generators in Smart Grid. In: Das, S.K., Islam, M.R., Xu, W. (eds) Advances in Control Techniques for Smart Grid Applications. Springer, Singapore. https://doi.org/10.1007/978-981-16-9856-9_10

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  • DOI: https://doi.org/10.1007/978-981-16-9856-9_10

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  • Online ISBN: 978-981-16-9856-9

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