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The low-voltage microgrid, a typical three phase asymmetric system, usually consists of many distributed generations (DGs) and loads, the injection power of them are mostly uncertain. In this paper, a novel method to calculate the probabilistic load flow of low-voltage microgrid is proposed. The three-phase model of each component in the network is established, then the time series probability models...
This paper discusses the problem of asymmetrical power flow for low-voltage distribution systems. According to the structure and operating characteristic of the network, the improvement of the back/forward sweep method is used by adopting the compensation power of the loop breaking point. The proposed method can deal with the problem of equivalent loops and non-full phase components. At the same time,...
The particle size of a particle can be acquired through signal analysis of acoustic emission measurement from impact of the particles onto a plate, provided that the impacting velocity of the particles as well as some characteristic parameters of the powder material is prior known. The authors proposed optical correlation velocimetry as an aid to acoustic emission measurement. The measuring apparatus...
Electromagnetic measurement has advanced rapidly in recent years because of its characteristics of non-contact and non-invasion nature. This paper presents an electromagnetic measurement system based on Field Programmable Gate Arrays (FPGA). The core of the system is a FPGA chip in which DDS, FIFO, digital demodulation module and MCU are embedded. The system consists of a flexible multi-frequency...
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