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Tremendous air-conditioner loads already have significant impact on the operation safety of Chinese distribution system. In the view of demand response, this paper aims to enhance distribution system voltage stability by improving inverter air-conditioners dynamic characteristics under power system short-term fluctuations. First of all, an inverter air-conditioner load model based on dynamic phasor...
In this paper, virtual synchronous generator (VSG) theory is investigated and utilized to control parallel inverters in a micro-grid, which is capable of sharing the local loads without communication lines. The mathematical model of VSG is built to describe the electromagnetic and mechanical characteristics of a synchronous generator. To make the model suitable for parallel inverters application,...
One time radial vibration, mostly caused by rotary eccentric load, may reduce the reliability and operating life of motors. In order to mitigate the one time radial vibration in permanent magnet motors, a real time detection method for rotary eccentric load based on the theoretical analysis of the motor vibration and the mechanical analysis was given, and a novel control strategy based on FOC (field...
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