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| Design of rotation speed measurement system for electric submersible pumps based on digital signal processor |
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LIU Guang-fu1,XI Wen-jing1,LIU Xiao-hua1,XIE Wen-xian2,YAO Cheng2,LEI Hou-yong3
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(1. College of Information and Control Engineering in China University of Petroleum，Dongying 257061，China;2. Shengli Oil Production Plant of Shengli Oilfield Branch Company9 SINOPEC, Dongying 257000, China;3. Dongsheng Jinggong Xinyuan Oil Exploitation Company limited, Dongying 257092, China)
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| Abstract: |
| In order to measure the rotation speed of electric submersible pumps (ESP)，the vibration detecting system and vibration signal processing method were studied. Digital signal processor ( DSP) and three-axis accelerometer act as the core in the vibration detecting system. With the advantage of analyzing in a narrowband with high resolution, Chirp-Z transform was used in spectrum zooming analysis near the base vibration frequency. The test results show that the relative measurement accuracy can reach 0. 1%. The experimental results show that this method satisfies the precision and real-time request. This method can be used in many occasions and is of great value to spread. |
| Key words: digital signal processor (DSP) accelerometer rotation speed measurement Chirp-Z transform electric submersible pumps , |
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