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This paper proposes a novel wireless power and data transmission (WPDT) scheme to meet the communication requirements in a wireless power transfer system. The scheme borrows the idea of power line communication which modulates a high-frequency data carrier into fundamental AC electric wave. The scheme provides a number of appealing characteristics, such as shared magnetic linkage, low cost, small...
Power line communication is a widely used technology in the smart grid, which has the advantages of wide coverage area and no rewiring. However, the power line has hostile channel characteristics like strong noise, violent signal attenuation and time-varying, which lead to the unreliability of power line communication. Based on this, in this paper we present a new MAC protocol to improve the stability...
In order to achieve online monitoring the downhole information related to ESP working state, an ESP downhole parameters monitoring system based on current loop data transmission method was developed. Compared with other methods, the current loop data transmission method was relatively insensitive to interference in harsh environment. By means of ESP motor's winding and symmetrical reactance located...
In consideration of the complex condition of down hole environment, an ESP down hole multi-parameter comprehensive measurement system was designed in this paper in order to monitor the down hole information. Firstly, structures of the up hole section and down hole section of the system were introduced respectively. Then some key technologies on the system were illustrated in detail which consists...
To monitor the Electric Submersible Pump (ESP) running state, a multi-sensor down hole test system was designed in this paper. It is the important corollary equipment of the ESP. It can offer a number of detailed parameters of down hole environment. Therefore, this can raise the working reliability and utilizing efficiency of ESP. First, considering the condition of high temperature, high pressure...
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