An Optimal Strategy for Submodule Capacitance Sizing of Cascaded H-Bridge-Based Active Power Filter
This paper presents capacitor dimensioning to increase a system’s power density while the converter performance for the delta-connected cascaded H-bridge (CHB) active power filter (APF) is not impaired. After comparing aluminum electrolytic capacitors with film capacitors, this paper proposes capaci...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/21/4444 |
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| author | Hengyi Wang Fei Gao |
| author_facet | Hengyi Wang Fei Gao |
| author_sort | Hengyi Wang |
| collection | DOAJ |
| description | This paper presents capacitor dimensioning to increase a system’s power density while the converter performance for the delta-connected cascaded H-bridge (CHB) active power filter (APF) is not impaired. After comparing aluminum electrolytic capacitors with film capacitors, this paper proposes capacitance design requirements for film capacitors. With the help of trigonometric transformation for periodic time-varying variables, including capacitor voltages and branch voltages, the capacitance design requirements can be represented as positive univariate polynomials, the coefficients of which are with regard to the capacitance value. The optimization solver SeDuMi is then applied to determine whether a capacitance value is feasible by checking the positiveness of the polynomials. This research has very appealing theoretical and practical properties: the time-domain analysis capability for periodic variables is improved, therefore, enabling a fast computation and a broad application. Both the simulations and experimental results validate the proposed strategy. Compared with the previous work, the proposed method can result in a lower capacitance value without degrading the performance, which is beneficial for a low-cost and low-volume system. |
| first_indexed | 2024-03-11T11:32:14Z |
| format | Article |
| id | doaj.art-fd08801b538c436ba080099a5bdb4a6e |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T11:32:14Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-fd08801b538c436ba080099a5bdb4a6e2023-11-10T15:01:28ZengMDPI AGElectronics2079-92922023-10-011221444410.3390/electronics12214444An Optimal Strategy for Submodule Capacitance Sizing of Cascaded H-Bridge-Based Active Power FilterHengyi Wang0Fei Gao1Department of Electrical Engineering, Shanghai University, Nanchen Road Nr. 333, Shanghai 200444, ChinaKey Laboratory of Control of Power Transmission and Conversion (SJTU), Ministry of Education, Shanghai Jiao Tong University, Shanghai 200025, ChinaThis paper presents capacitor dimensioning to increase a system’s power density while the converter performance for the delta-connected cascaded H-bridge (CHB) active power filter (APF) is not impaired. After comparing aluminum electrolytic capacitors with film capacitors, this paper proposes capacitance design requirements for film capacitors. With the help of trigonometric transformation for periodic time-varying variables, including capacitor voltages and branch voltages, the capacitance design requirements can be represented as positive univariate polynomials, the coefficients of which are with regard to the capacitance value. The optimization solver SeDuMi is then applied to determine whether a capacitance value is feasible by checking the positiveness of the polynomials. This research has very appealing theoretical and practical properties: the time-domain analysis capability for periodic variables is improved, therefore, enabling a fast computation and a broad application. Both the simulations and experimental results validate the proposed strategy. Compared with the previous work, the proposed method can result in a lower capacitance value without degrading the performance, which is beneficial for a low-cost and low-volume system.https://www.mdpi.com/2079-9292/12/21/4444cascaded H-Bridgeactive power filtercapacitor sizingpositive polynomials |
| spellingShingle | Hengyi Wang Fei Gao An Optimal Strategy for Submodule Capacitance Sizing of Cascaded H-Bridge-Based Active Power Filter Electronics cascaded H-Bridge active power filter capacitor sizing positive polynomials |
| title | An Optimal Strategy for Submodule Capacitance Sizing of Cascaded H-Bridge-Based Active Power Filter |
| title_full | An Optimal Strategy for Submodule Capacitance Sizing of Cascaded H-Bridge-Based Active Power Filter |
| title_fullStr | An Optimal Strategy for Submodule Capacitance Sizing of Cascaded H-Bridge-Based Active Power Filter |
| title_full_unstemmed | An Optimal Strategy for Submodule Capacitance Sizing of Cascaded H-Bridge-Based Active Power Filter |
| title_short | An Optimal Strategy for Submodule Capacitance Sizing of Cascaded H-Bridge-Based Active Power Filter |
| title_sort | optimal strategy for submodule capacitance sizing of cascaded h bridge based active power filter |
| topic | cascaded H-Bridge active power filter capacitor sizing positive polynomials |
| url | https://www.mdpi.com/2079-9292/12/21/4444 |
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