A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region

Xinan Zhang; Zhixu Ma; Gilbert Foo; Linjie Ren

doi:10.1109/ICEMS.2019.8921752

A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region

Xinan Zhang, Zhixu Ma, Gilbert Foo, Linjie Ren

Electrical, Electronic and Computer Engineering

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

Abstract

Direct torque and flux control (DTFC) is acknowledged as one of the most effective approaches for reluctance synchronous motor (RSM) drives due to its smooth torque response, low current harmonics and direct applicability to field-weakening (FW) operation. However, the conventional FW algorithm for RSM only provides constrained constant power speed region (CPSR) because of its limited usage of DC-link voltage. Furthermore, most of the existing over-modulation strategies for DTFC based FW operation are mathematically very complicated and highly model dependent, making them less attractive. To maximize the CPSR of direct torque and flux controlled RSM, this paper proposes a new robust over-modulation scheme. The proposed scheme is simple and robust since it does not require the knowledge of machine parameters. The effectiveness of the proposed over-modulation scheme is verified through simulations.

Original language	English
Title of host publication	2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Place of Publication	USA
Publisher	IEEE, Institute of Electrical and Electronics Engineers
ISBN (Electronic)	9781728133980
DOIs	https://doi.org/10.1109/ICEMS.2019.8921752
Publication status	Published - 1 Aug 2019
Event	22nd International Conference on Electrical Machines and Systems, ICEMS 2019 - Harbin, China Duration: 11 Aug 2019 → 14 Aug 2019 http://www.icems2019.com/

Publication series

Name	2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019

Conference

Conference	22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Country/Territory	China
City	Harbin
Period	11/08/19 → 14/08/19
Internet address	http://www.icems2019.com/

Access to Document

10.1109/ICEMS.2019.8921752

Cite this

Zhang, X., Ma, Z., Foo, G., & Ren, L. (2019). A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region. In 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019 Article 8921752 (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICEMS.2019.8921752

Zhang, Xinan ; Ma, Zhixu ; Foo, Gilbert et al. / A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region. 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019. USA : IEEE, Institute of Electrical and Electronics Engineers, 2019. (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019).

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title = "A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region",

abstract = "Direct torque and flux control (DTFC) is acknowledged as one of the most effective approaches for reluctance synchronous motor (RSM) drives due to its smooth torque response, low current harmonics and direct applicability to field-weakening (FW) operation. However, the conventional FW algorithm for RSM only provides constrained constant power speed region (CPSR) because of its limited usage of DC-link voltage. Furthermore, most of the existing over-modulation strategies for DTFC based FW operation are mathematically very complicated and highly model dependent, making them less attractive. To maximize the CPSR of direct torque and flux controlled RSM, this paper proposes a new robust over-modulation scheme. The proposed scheme is simple and robust since it does not require the knowledge of machine parameters. The effectiveness of the proposed over-modulation scheme is verified through simulations.",

keywords = "direct torque and flux control, field-weakening, over-modulation, reluctance synchronous motor",

author = "Xinan Zhang and Zhixu Ma and Gilbert Foo and Linjie Ren",

year = "2019",

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booktitle = "2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019",

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Zhang, X, Ma, Z, Foo, G & Ren, L 2019, A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region. in 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019., 8921752, 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019, IEEE, Institute of Electrical and Electronics Engineers, USA, 22nd International Conference on Electrical Machines and Systems, ICEMS 2019, Harbin, China, 11/08/19. https://doi.org/10.1109/ICEMS.2019.8921752

A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region. / Zhang, Xinan; Ma, Zhixu; Foo, Gilbert et al.
2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019. USA: IEEE, Institute of Electrical and Electronics Engineers, 2019. 8921752 (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019).

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

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T1 - A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region

AU - Zhang, Xinan

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AU - Ren, Linjie

PY - 2019/8/1

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N2 - Direct torque and flux control (DTFC) is acknowledged as one of the most effective approaches for reluctance synchronous motor (RSM) drives due to its smooth torque response, low current harmonics and direct applicability to field-weakening (FW) operation. However, the conventional FW algorithm for RSM only provides constrained constant power speed region (CPSR) because of its limited usage of DC-link voltage. Furthermore, most of the existing over-modulation strategies for DTFC based FW operation are mathematically very complicated and highly model dependent, making them less attractive. To maximize the CPSR of direct torque and flux controlled RSM, this paper proposes a new robust over-modulation scheme. The proposed scheme is simple and robust since it does not require the knowledge of machine parameters. The effectiveness of the proposed over-modulation scheme is verified through simulations.

AB - Direct torque and flux control (DTFC) is acknowledged as one of the most effective approaches for reluctance synchronous motor (RSM) drives due to its smooth torque response, low current harmonics and direct applicability to field-weakening (FW) operation. However, the conventional FW algorithm for RSM only provides constrained constant power speed region (CPSR) because of its limited usage of DC-link voltage. Furthermore, most of the existing over-modulation strategies for DTFC based FW operation are mathematically very complicated and highly model dependent, making them less attractive. To maximize the CPSR of direct torque and flux controlled RSM, this paper proposes a new robust over-modulation scheme. The proposed scheme is simple and robust since it does not require the knowledge of machine parameters. The effectiveness of the proposed over-modulation scheme is verified through simulations.

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Zhang X, Ma Z, Foo G, Ren L. A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region. In 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019. USA: IEEE, Institute of Electrical and Electronics Engineers. 2019. 8921752. (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019). doi: 10.1109/ICEMS.2019.8921752

A Robust Over-modulation Scheme for Direct Torque and Flux Controlled Reluctance Synchronous Motors in Field-weakening Region

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