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— Because of using the nonlinear high-power, single-phase, multi-step full wave or bridge rectifier electric locomotive in electrified railway, the electrified railway traction power supply system has serious power quality problems, which affect safe operation of the electrified railway and impact the local power grid adversely. Aiming at the electrified(More)
Highroad traffic is indispensability, not only in daily living of person, but also in the state economic development. However, frequency of highroad traffic safety or traffic accidents is more. What is more, standard of living and state economic development are restricted more and more by traffic safety or traffic accidents. With the rapid development of(More)
Electric locomotive is a kind of high power rectifier load, and its load characteristics will have a significant impact to safe, stable and economic operation of power system. This paper mainly analyses load characteristics of harmonic and reactive power for electric locomotive. Simulation model of electric locomotive is set up based on time trigger; it is(More)
This paper analyzes necessity of synthesis control of power quality aiming at characteristics of traction power supply system for electrified railway. In order to achieve real-time detection and compensation for power quality of electric railway traction power system, this paper provides a detection method of selective harmonic current, so vertiginous(More)
This paper analyzes the power loss of magnetically controlled reactor based on the basic theory of the electromagnetic field. In a variety of magnetic valve structure model as the object, physical simulation models of the reactor are built. Using Ansoft Maxwell simulation software, various magnetic valve structures of the reactor are studied by the analysis(More)
—This paper analyzes necessity of synthesis control of power quality aiming at characteristics of traction power supply system for electrified railway. According to the fact that the existing power quality control, the measure and means were introduced, analyzed and compared in detailed. From reliability, technology and economy point, the project of(More)
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