一种静电收尘器高频电源控制装置
By integrating boost and inverter functions into an LLC resonant converter circuit in a high-frequency power supply, combined with nanocrystalline alloy materials and intelligent control, the complexity and efficiency problems of high-frequency power supplies are solved, achieving miniaturization and high-efficiency conversion of the power supply, and improving the dust removal effect of the electrostatic precipitator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGDINGSHAN TONGTIAN ENVIRONMENTAL PROTECTION CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-frequency power supplies suffer from problems such as excessive size, poor heat dissipation, easy damage to components, lack of local operating system and intuitive display of operating parameters, as well as limited circuit complexity and conversion efficiency.
The LLC resonant converter circuit integrates boost and inverter functions, and combines nanocrystalline alloy materials and SiC MOSFET or GaN HEMT devices to dynamically adjust the switching frequency. It adopts a planar transformer structure and intelligent control module to achieve adaptive voltage adjustment.
It improves the integration and reliability of the power supply, enhances conversion efficiency and power performance, adaptability and intelligence, and strengthens the dust removal efficiency of the electrostatic precipitator.
Smart Images
Figure CN224520940U_ABST
Abstract
Claims
1. An electrostatic precipitator high-frequency power supply control device, comprising a three-phase rectifier circuit, a high-frequency transformer and a full-bridge rectifier module connected in sequence, characterized in that: An LLC resonant converter circuit for integrating boost and inverter functions is provided between the three-phase rectifier circuit and the high-frequency transformer. The LLC resonant converter circuit includes a full-bridge switching network, a resonant capacitor, a resonant inductor, and a magnetizing inductor. The output terminal of the full-bridge rectifier module is connected to the high-voltage electrode of the electrostatic precipitator.
2. The control device for a high frequency power supply of an electrostatic precipitator according to claim 1, characterized in that: The high-frequency transformer has a core saturation magnetic induction intensity of 1.2T or more and an iron loss of 30kW / m or less at a frequency of 100kHz 3 The high-frequency transformer has a core made of nanocrystalline alloy material and a working frequency of 200kHz or more.
3. The control device for a high frequency power supply of an electrostatic precipitator according to claim 1, characterized in that: The switching network of the LLC resonant converter circuit is a SiC MOSFET device or a GaN HEMT device, with a switching frequency of 200kHz-500kHz.
4. The control device for a high frequency power supply of an electrostatic precipitator according to claim 1, characterized in that: The high-frequency transformer adopts a planar transformer structure. The primary and secondary windings of the high-frequency transformer are made of multi-layer stacked PCB or flat copper strip winding, with leakage inductance ≤0.5% of the rated inductance.
5. The control device for a high frequency power supply of an electrostatic precipitator according to claim 1, characterized in that: It includes an intelligent control module that collects the dust concentration signal of the flue gas from the electrostatic precipitator in real time and dynamically adjusts the switching frequency of the LLC resonant converter circuit so that the output voltage can be adaptively adjusted within the range of 40kV-80kV.