An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems
The inherent second-harmonic ripple power in a cascaded H-bridge (CHB)-based motor drive system poses the demand of large capacitors in the dc link of each cell. In this paper, an active power decoupling method based on negative sequence current injection and its corresponding dual voltage closed-lo...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/140607 |
| _version_ | 1824456551890419712 |
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| author | Yang, Zezhou Sun, Jianjun Tang, Yi Huang, Meng Zha, Xiaoming |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Yang, Zezhou Sun, Jianjun Tang, Yi Huang, Meng Zha, Xiaoming |
| author_sort | Yang, Zezhou |
| collection | NTU |
| description | The inherent second-harmonic ripple power in a cascaded H-bridge (CHB)-based motor drive system poses the demand of large capacitors in the dc link of each cell. In this paper, an active power decoupling method based on negative sequence current injection and its corresponding dual voltage closed-loop control are proposed to solve this problem without adding any extra components. The proposed dual voltage closed-loop control system consists of a conventional active power control loop and a frequency-adaptive ripple power control loop. The ripple power control loop aims at injecting a set of negative sequence decoupling currents into the front ends of the cells to remove the ripple powers with variable frequency. Higher steady-state accuracy and robustness are, therefore, achieved compared to the open-loop control. Moreover, to simplify the control system, the ripple power control loop can be integrated into the active power control loop without introducing a harmonic reference frame transformation. By adopting the proposed control, the dc capacitance can be reduced to less than 10% of the conventional case. The effectiveness and practicability of this method are verified by simulation and experimental results. |
| first_indexed | 2025-02-19T03:55:54Z |
| format | Journal Article |
| id | ntu-10356/140607 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:55:54Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1406072020-06-01T02:01:55Z An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems Yang, Zezhou Sun, Jianjun Tang, Yi Huang, Meng Zha, Xiaoming School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Active Power Decoupling Cascaded H-bridge (CHB) Converter The inherent second-harmonic ripple power in a cascaded H-bridge (CHB)-based motor drive system poses the demand of large capacitors in the dc link of each cell. In this paper, an active power decoupling method based on negative sequence current injection and its corresponding dual voltage closed-loop control are proposed to solve this problem without adding any extra components. The proposed dual voltage closed-loop control system consists of a conventional active power control loop and a frequency-adaptive ripple power control loop. The ripple power control loop aims at injecting a set of negative sequence decoupling currents into the front ends of the cells to remove the ripple powers with variable frequency. Higher steady-state accuracy and robustness are, therefore, achieved compared to the open-loop control. Moreover, to simplify the control system, the ripple power control loop can be integrated into the active power control loop without introducing a harmonic reference frame transformation. By adopting the proposed control, the dc capacitance can be reduced to less than 10% of the conventional case. The effectiveness and practicability of this method are verified by simulation and experimental results. 2020-06-01T02:01:55Z 2020-06-01T02:01:55Z 2018 Journal Article Yang, Z., Sun, J., Tang, Y., Huang, M., & Zha, X. (2019). An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems. IEEE Transactions on Industrial Electronics, 66(5), 3369-3379. doi:10.1109/TIE.2018.2854606 0278-0046 https://hdl.handle.net/10356/140607 10.1109/TIE.2018.2854606 2-s2.0-85049963883 5 66 3369 3379 en IEEE Transactions on Industrial Electronics © 2018 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Active Power Decoupling Cascaded H-bridge (CHB) Converter Yang, Zezhou Sun, Jianjun Tang, Yi Huang, Meng Zha, Xiaoming An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems |
| title | An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems |
| title_full | An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems |
| title_fullStr | An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems |
| title_full_unstemmed | An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems |
| title_short | An integrated dual voltage loop control for capacitance reduction in CHB-based regenerative motor drive systems |
| title_sort | integrated dual voltage loop control for capacitance reduction in chb based regenerative motor drive systems |
| topic | Engineering::Electrical and electronic engineering Active Power Decoupling Cascaded H-bridge (CHB) Converter |
| url | https://hdl.handle.net/10356/140607 |
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