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This paper proposes an information fusion method of Common Information Model(CIM) for analysis of sag vulnerability area, in order to automatically track the operation state of system. Multiplayer structure of information fusion containing data fusion, feature fusion and decision fusion, is built to obtain basic data required by analysis of sag vulnerability area like topologies, equipment parameters,...
A new self-recovery compensation and control strategy suitable for dynamic voltage regulator (DVR) supplied by DC-capacitor was proposed. Two compensation stages which were transient compensation stage and recovery compensation stage were included in the strategy. The maximum energy compensation strategy which could maximize the exchange active power between the equipment's DC-capacitor and its outside...
The problem of current waveform distortion because of dead-time inserted in power electronic applications is analyzed and researched in this paper, and the equivalent voltage source model is set up in to analyze the low frequency harmonic voltage because of dead-time effect. The control strategy of harmonic injection is proposed to compensate the current distortion due to dead-time effect. Firstly,...
Static Synchronous Series Compensator(SSSC)which is regarded as a newly developed FACTS equipment with extensive applying prospects has received more and more attentions recently. This paper has adopted three single phase of cascaded converter as the main circuit of SSSC and SVPWM based on KL coordinates as the modulation algorithm. Considering the characteristics of main circuit structure and SSSC...
This paper discusses the performance of the SVC ( static var compensator ) linked to the inverter side of China-Russia Heihe BTB (back-to-back) HVDC project. Detailed Heihe BTB-HVDC primary system, China side AC 500/220kV electromagnetic loop network, the control system of BTB-HVDC and SVC are modeled using the electromagnetic transient simulation software PSCAD/EMTDC. Based on the detailed models,...
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