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This paper describes a position estimation approach based on high-frequency voltage injections for dual three-phase permanent magnet synchronous machines (DTP-PMSM) whose sets of windings are spatially shifted by 360 electrical degrees. Fail-operational drives gain more and more importance in automotive applications. Typically, multiphase machines are used to realize fail-operational properties. Besides...
V2V transmission of Safety Warning Message (SWM) can provide warning before emergency occurs to avoid accident, and remind surrounding vehicles to avoid potential danger. There are two main problems that will affect the transmission performance of SWM, namely the high local flow and low efficiency caused by high probability of sub-health vehicles (SHV) and traditional single channel and flooding transmission...
Nowadays the trackside equipment layout of the traditional urban rail transit signal system mainly depends on the personal experience of the system designer. The accuracy and efficiency of the work cannot be guaranteed, relying more on the field test in the future. This paper focuses on this problem existing in the design work of signal system, based on the completeness and compatibility of the signal...
As metro systems have become more advanced, Communication-Based Train Control (CBTC) has been increasingly valued because of its characteristics. It is, however, necessary to guarantee that the CBTC system is safe so that the safety of the whole metro system can be improved. Traditional off-line testing methods are widely used to determine whether the CBTC system complies with the desired specification,...
With intensive research and field operational tests over the intelligent transportation area and the advancements of information and communication technologies, intelligent transportation systems reach the stage of deployment. EU focuses on cooperative intelligent transportation systems and confirms the finalization of the first release of the standards, paving the way for deployment in the coming...
Cooperative speed harmonization based on floating car data aiming at improving manoeuvrability in a highly utilized intersection is presented. Cooperative Intelligent Transportation Systems (C-ITS) aims at gather information about the current traffic situation based on wireless communication and provide aggregated information back to the road users in order to improve e.g. efficiency, safety and/or...
Distribution STATic synchronous COMpensator (DSTATCOM) can be used for reactive and harmonic current compensation. The safety and reliability of DC-bus voltage control are critical in practice in both dynamic process and steady state, especially for the ones of DC-bus self-regulation. This paper proposes a modulation-ratio-regulation based control strategy for the setup of DC-bus voltage of DSTATCOM...
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