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Symmetrical pulse density modulation power control-based dielectric barrier discharge ozone generator power supply source

A technology of dielectric barrier discharge and ozone generator, which is used in output power conversion devices, high-efficiency power electronic conversion, conversion of AC power input to AC power output, etc., can solve the problems of intermittent load current and easy system lock loss. , to achieve the effect of not easy to lose lock, high working efficiency and small switching loss

Inactive Publication Date: 2017-03-15
南京匹瑞电气科技有限公司
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Problems solved by technology

[0004] The present invention aims at the problem that the traditional PDM-controlled DBD-type ozone generator has low pulse density D and light-load conditions, such that the load current is easily intermittent and the system is easy to lose lock, etc., and provides a DBD-type ozone generator controlled by uniform pulse modulation power. Generator power supply

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  • Symmetrical pulse density modulation power control-based dielectric barrier discharge ozone generator power supply source
  • Symmetrical pulse density modulation power control-based dielectric barrier discharge ozone generator power supply source
  • Symmetrical pulse density modulation power control-based dielectric barrier discharge ozone generator power supply source

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Depend on figure 1 It can be seen that the present invention includes a rectifier circuit 1, an LC filter circuit 2, a single-phase full-bridge inverter circuit 3, a high-frequency step-up transformer 4, a pulse uniform modulation power control system 6, a drive circuit 7 and an ozone generator load 5. The rectifier circuit 1 is connected to the single-phase full-bridge inverter circuit 3 through the LC filter circuit 2, the output of the single-phase full-bridge inverter circuit 3 is connected to the primary side of the high-frequency step-up transformer 4, and the secondary side of the high-frequency step-up transformer 4 Connect with the ozone generator load 5. The uniform pulse modulation power control system 6 includes a feedback current sampling module 11 , a phase-locked loop module 12 , a power setting module 9 , a pulse density...

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Abstract

The invention discloses a symmetrical pulse density modulation power control-based dielectric barrier discharge ozone generator power supply source. The ozone generator power supply source mainly comprises a rectifier circuit, an LC filter circuit, a single-phase full-bridge inverter circuit, a high-frequency step-up transformer, a symmetrical pulse density modulation power control system, a drive circuit and an ozone generator load. The dielectric barrier discharge ozone generator power supply source has good characteristics that load current is not easy to interrupt and the system is not easy to unlock under symmetrical pulse density modulation power control; and the condition that an ozone generator is always in an efficient discharge state can be ensured. Furthermore, various power devices in the circuit can work under a soft switching condition; high-efficiency operation of the power supply source is ensured; and the whole power supply source has the characteristics of being small in loss and simple in power regulation.

Description

technical field [0001] The invention relates to a special power supply, in particular to a dielectric barrier discharge type ozone generator power supply based on pulse uniform modulation power control. Background technique [0002] Ozone is an allotrope of oxygen. At room temperature, it is a light blue gas with a special odor. The strong oxidizing properties of ozone make it widely used in water treatment, food processing, agricultural pest control, medical and health and other fields. At present, the methods for artificially preparing ozone can be divided into: gas discharge method, photochemical method and electrochemical method according to different preparation principles. Among them, the dielectric barrier discharge method (Dielectric Barrier Discharge, DBD) in the gas discharge method is the most feasible and effective method for producing ozone in industry. Dielectric barrier discharge type ozone generator can be divided into undischarged state and discharged stat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/458H02M7/5395
CPCH02M5/458H02M7/5395H02M1/0054Y02B70/10
Inventor 张建忠钱正国
Owner 南京匹瑞电气科技有限公司
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