Development of a High-Voltage Pulsed Electric Field Sterilization Power Supply Using a New Topology Circuit
Traditional thermal sterilization technology is easy to implement and safe, but it will destroy food nutrition and change food taste. Therefore, people began to turn their attention to non-thermal sterilization. High-voltage pulsed electric field sterilization technology is one of them; it has attra...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/6/2741 |
| _version_ | 1797612123549859840 |
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| author | Bo Zhu He Su Zhihan Fang Guoyan Wu Xinlao Wei |
| author_facet | Bo Zhu He Su Zhihan Fang Guoyan Wu Xinlao Wei |
| author_sort | Bo Zhu |
| collection | DOAJ |
| description | Traditional thermal sterilization technology is easy to implement and safe, but it will destroy food nutrition and change food taste. Therefore, people began to turn their attention to non-thermal sterilization. High-voltage pulsed electric field sterilization technology is one of them; it has attracted much attention because of its high efficiency and little damage to food. Different types of loads will cause serious trailing of the pulse falling edge. In view of this situation, this paper proposes a new topology circuit that combines a solid-state switch with a half-bridge Marx generator. It can be used for high-voltage pulsed electric field sterilization. By improving the structure of the classical Marx circuit, the high-voltage pulse power supply of the new topology circuit has the characteristics of steep rising edge and short falling edge delay; does not require isolation inductance or isolation resistance, which solves the isolation problem between the DC charging power supply and the high-voltage terminal; and has a good voltage-clamping function and load adaptability. The working process of the topology circuit under resistive, capacitive and inductive loads and the voltage clamping effect when the solid-state switch does not work properly in the discharge process are analyzed in detail. The power supply is composed of an adjustable DC power supply, five-stage half-bridge Marx generator and control protection circuit. A field programmable gate array (FPGA) is used as the controller to generate control signals, and optical fiber isolation is used to provide control signals for the main loop. The power supply can output a high-voltage square wave pulse with a voltage amplitude of 10 kV, maximum pulse number of 1000 per second, maximum pulse width of 20 μs, pulse rise time of smaller than 300 ns and short pulse drop time, and the repeated voltage amplitude, frequency and pulse width are adjustable, which can meet the requirements of a high-voltage pulse sterilization experiment. |
| first_indexed | 2024-03-11T06:36:55Z |
| format | Article |
| id | doaj.art-7ca2308069a44c17bc2561367cba9006 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T06:36:55Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7ca2308069a44c17bc2561367cba90062023-11-17T10:50:18ZengMDPI AGEnergies1996-10732023-03-01166274110.3390/en16062741Development of a High-Voltage Pulsed Electric Field Sterilization Power Supply Using a New Topology CircuitBo Zhu0He Su1Zhihan Fang2Guoyan Wu3Xinlao Wei4College of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, ChinaCollege of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, ChinaCollege of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, ChinaCollege of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, ChinaCollege of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, ChinaTraditional thermal sterilization technology is easy to implement and safe, but it will destroy food nutrition and change food taste. Therefore, people began to turn their attention to non-thermal sterilization. High-voltage pulsed electric field sterilization technology is one of them; it has attracted much attention because of its high efficiency and little damage to food. Different types of loads will cause serious trailing of the pulse falling edge. In view of this situation, this paper proposes a new topology circuit that combines a solid-state switch with a half-bridge Marx generator. It can be used for high-voltage pulsed electric field sterilization. By improving the structure of the classical Marx circuit, the high-voltage pulse power supply of the new topology circuit has the characteristics of steep rising edge and short falling edge delay; does not require isolation inductance or isolation resistance, which solves the isolation problem between the DC charging power supply and the high-voltage terminal; and has a good voltage-clamping function and load adaptability. The working process of the topology circuit under resistive, capacitive and inductive loads and the voltage clamping effect when the solid-state switch does not work properly in the discharge process are analyzed in detail. The power supply is composed of an adjustable DC power supply, five-stage half-bridge Marx generator and control protection circuit. A field programmable gate array (FPGA) is used as the controller to generate control signals, and optical fiber isolation is used to provide control signals for the main loop. The power supply can output a high-voltage square wave pulse with a voltage amplitude of 10 kV, maximum pulse number of 1000 per second, maximum pulse width of 20 μs, pulse rise time of smaller than 300 ns and short pulse drop time, and the repeated voltage amplitude, frequency and pulse width are adjustable, which can meet the requirements of a high-voltage pulse sterilization experiment.https://www.mdpi.com/1996-1073/16/6/2741high-voltage pulse power supplypulsed electric fieldMarx generatorall-solid-statefield programmable gate arrayliquid sterilization |
| spellingShingle | Bo Zhu He Su Zhihan Fang Guoyan Wu Xinlao Wei Development of a High-Voltage Pulsed Electric Field Sterilization Power Supply Using a New Topology Circuit Energies high-voltage pulse power supply pulsed electric field Marx generator all-solid-state field programmable gate array liquid sterilization |
| title | Development of a High-Voltage Pulsed Electric Field Sterilization Power Supply Using a New Topology Circuit |
| title_full | Development of a High-Voltage Pulsed Electric Field Sterilization Power Supply Using a New Topology Circuit |
| title_fullStr | Development of a High-Voltage Pulsed Electric Field Sterilization Power Supply Using a New Topology Circuit |
| title_full_unstemmed | Development of a High-Voltage Pulsed Electric Field Sterilization Power Supply Using a New Topology Circuit |
| title_short | Development of a High-Voltage Pulsed Electric Field Sterilization Power Supply Using a New Topology Circuit |
| title_sort | development of a high voltage pulsed electric field sterilization power supply using a new topology circuit |
| topic | high-voltage pulse power supply pulsed electric field Marx generator all-solid-state field programmable gate array liquid sterilization |
| url | https://www.mdpi.com/1996-1073/16/6/2741 |
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