Prospect Analysis of High Frequency Inverter Used in ESP
Prospect Analysis of High Frequency Inverter Used in ESP
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DOI：
10.18686/esta.v2i1.2
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发表时间：
2015-12
期刊：
影响因子：
--
通讯作者：
B. Han
中科院分区：
文献类型：
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作者：
B. Han
旧电除尘器已经很难达到新的粉尘排放标准，设备更新耗资巨大，因此，如何达到更高的性价比成为关注的焦点。通过研究发现，用电除尘器电源的高频逆变器替代工频电源可以大大提高除尘效率，性价比高，具有良好的应用前景。高频电除尘器的核心思想是将三相工频电源转换为直流电源，利用现代电力电子技术，将直流电源逆变器转换为高频交流电源进行控制。从本文可以看出，电除尘器的高频逆变器具有以下优点：(L)三相整流器将三相交流功率转换为直流功率；逆变器将直流电压转换为高频交流电压。该方法在控制上具有很大的灵活性。(2)逆变器中高频交流电压方波的输出形式将升压变压器转换为高频变压器。(3)与传统的可控硅相控式电除尘器电源相比，高频逆变器电除尘器电源采用全可控功率元件：IGBT，投切速度快，在电除尘器发生闪络时可立即关断。研究发现，高频变频器可以大大提高除尘效率，具有良好的先进性和很高的性价比，具有广阔的应用前景。
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.