Page Header

Prospect Analysis of High Frequency Inverter Used in ESP

Bangzhong Han

Abstract


It has been difficult for the old ESP to meet the new dust emission standards, and the update of the equipment costs a lot of money, therefore, how to reach a higher cost performance becomes the focus of attention. After researches we found that the replacement of the industrial frequency power with the high-frequency inverter of the ESP power can greatly improve the collection efficiency, with a high cost performance and a good prospect of application. The core idea of electrostatic precipitators of high frequency inverter is to transfer three-phase working frequency power into DC power, make use of modernized power electronic technologies and transfer DC power inverter into high frequency AC for control. We can see from this article that electrostatic precipitators of high frequency inverter enjoy the following strengths: (l) Three-phase rectifier transfers three-phase AC power into DC power; the inverter transfers DC voltage into high frequency AC voltage. This method enjoys great flexibility in the control. (2) The output form of high frequency AC voltage square wave in the inverter transfers step-up transformer into high frequency transformer. (3) Compared with the traditional power supply of controllable silicon working frequency phase control electrostatic precipitators, the electrostatic precipitators power supply of high frequency inverter adopts full-controllable power component: IGBT which features  swift switch-on/off speed and in case of flashover in the electrostatic precipitators, it is switched off immediately. Research has discovered that high frequency inverter can greatly upgrade the dust collection efficiency, enjoy favorable advancement and very high performance-price ratio and realize broad application prospect.

Keywords


High-frequency inverter; ESP; Power optimization; Energy saving and emission reduction

Full Text:

PDF

References


Liu, Y., & He, X. (2005). PDM and PFM hybrid control of a series-resonant inverter for corona surface treatmen. IEE Proceedings Electric Power Application, 152(6), 1405–1410.

Liu, Y., He, X. N., & Zhang, Z. C. (2005). Research and Fabrication of Surface Treatment Power Supply of Pulse Density Modulated Serial Harmonic Type Plastic Film. China Motor Engineering Journal, 25(26), 155–162.

Zhang, Q. (2006). PS-PWM Control and Human—Machine Interface of Surface Treatment Power Supply of Plastic Film (master’s thesis). Hangzhou: Zhejiang University.

Zhang, G. X., & Jiang, Y. F. (2007). Development Direction of Power Supply of electrostatic precipitators---High Frequency and Digitalization. Power World, l, 1–4.

Grass, N., Hartmann, W., & Klockner, M. (2004). Application of different types of high-voltage supplies on industrial electrostatic precipitators. IEEE Transactions on Industry Applications, 40(6), 1513–1520.




DOI: http://dx.doi.org/10.18686/esta.v2i1.2

Refbacks

  • There are currently no refbacks.


Copyright (c) 2015 Bangzhong Han

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.