Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind Turbine
Wind energy is a good alternative to fossil fuels, as the use of fossil fuels has seriously exacerbated the emission of greenhouse gases such as carbon dioxide and has greatly affected the environment. Conventional AC wind farms and AC transmission systems inevitably face problems involving reactive...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/13/2967 |
| _version_ | 1797591874457829376 |
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| author | Qingfeng Kong Guobing Song Zhanlong Li Xiangjun Wang |
| author_facet | Qingfeng Kong Guobing Song Zhanlong Li Xiangjun Wang |
| author_sort | Qingfeng Kong |
| collection | DOAJ |
| description | Wind energy is a good alternative to fossil fuels, as the use of fossil fuels has seriously exacerbated the emission of greenhouse gases such as carbon dioxide and has greatly affected the environment. Conventional AC wind farms and AC transmission systems inevitably face problems involving reactive currents and overvoltage in the context of large-scale, large-capacity, and long-distance transmission. However, the use of all-DC wind turbines, together with DC convergence and DC transmission systems, has obvious advantages over AC transmission in terms of transmission losses and expandability. Such technology does not require bulky frequency transformers and can well solve the aforementioned problems of reactive currents and overvoltage. This paper proposes a new series–parallel structure for an all-DC wind power generation system. The series end uses a DC/DC converter based on the Cuk circuit to solve the current consistency and power balancing problems of the series wind turbine through current control, whereas the parallel end uses a large-capacity DC/DC converter based on the capacity transfer principle, to solve the problem of voltage consistency at the grid-connected end. The series part is used to increase the voltage level of the system, which can reduce the huge construction costs of offshore platforms, and the parallel part is used to increase the capacity of the system, which enables its incorporation into large-scale wind farms to achieve the replacement of fossil fuel energy. |
| first_indexed | 2024-03-11T01:43:36Z |
| format | Article |
| id | doaj.art-ffdc08d49d7848e8a8c3b8fbf4fe76c1 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T01:43:36Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-ffdc08d49d7848e8a8c3b8fbf4fe76c12023-11-18T16:26:06ZengMDPI AGElectronics2079-92922023-07-011213296710.3390/electronics12132967Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind TurbineQingfeng Kong0Guobing Song1Zhanlong Li2Xiangjun Wang3College of Electrical Engineering, Xinjiang University, Urumqi 830047, ChinaCollege of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaBeijing Goldwind Science & Creation Wind Power Equipment Co., Ltd., Beijing 100176, ChinaCollege of Electrical Engineering, Xinjiang University, Urumqi 830047, ChinaWind energy is a good alternative to fossil fuels, as the use of fossil fuels has seriously exacerbated the emission of greenhouse gases such as carbon dioxide and has greatly affected the environment. Conventional AC wind farms and AC transmission systems inevitably face problems involving reactive currents and overvoltage in the context of large-scale, large-capacity, and long-distance transmission. However, the use of all-DC wind turbines, together with DC convergence and DC transmission systems, has obvious advantages over AC transmission in terms of transmission losses and expandability. Such technology does not require bulky frequency transformers and can well solve the aforementioned problems of reactive currents and overvoltage. This paper proposes a new series–parallel structure for an all-DC wind power generation system. The series end uses a DC/DC converter based on the Cuk circuit to solve the current consistency and power balancing problems of the series wind turbine through current control, whereas the parallel end uses a large-capacity DC/DC converter based on the capacity transfer principle, to solve the problem of voltage consistency at the grid-connected end. The series part is used to increase the voltage level of the system, which can reduce the huge construction costs of offshore platforms, and the parallel part is used to increase the capacity of the system, which enables its incorporation into large-scale wind farms to achieve the replacement of fossil fuel energy.https://www.mdpi.com/2079-9292/12/13/2967DC wind turbineall-DC power generation systemDC series–parallel connectionnew DC/DC converter |
| spellingShingle | Qingfeng Kong Guobing Song Zhanlong Li Xiangjun Wang Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind Turbine Electronics DC wind turbine all-DC power generation system DC series–parallel connection new DC/DC converter |
| title | Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind Turbine |
| title_full | Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind Turbine |
| title_fullStr | Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind Turbine |
| title_full_unstemmed | Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind Turbine |
| title_short | Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind Turbine |
| title_sort | design of a series parallel all dc power generation system based on a new dc wind turbine |
| topic | DC wind turbine all-DC power generation system DC series–parallel connection new DC/DC converter |
| url | https://www.mdpi.com/2079-9292/12/13/2967 |
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