Converter valve simulation platform and realization method thereof

• Main Authors: CHA KUNPENG, XU WEIHUA, ZHANG HAO, LI NA, WEI XIAOGUANG, YANG YUEXI
• Format: Patent
• Language: Chinese; English
• Published: 20.04.2016
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The invention relates to a converter valve simulation platform and a realization method thereof. The simulation platform comprises a three-phase six-pulse bridge circuit, each phase is composed of valve modules connected in series, and each valve module is internally equipped with an auxiliary thyristor valve and a controlled switch. The realization method comprises the steps of measuring and calculating converter valve internal sub-factors affecting the turn-off process in real time, working out the real-time critical turn-off angle of a valve based on device test data and dispersity, comparing the real-time critical turn-off angle with a measured operation turn-off angle, and simulating a corresponding valve commutation failure process when judging that a commutation failure may happen. The invention provides a new means of research for researching and analyzing the influence of converter valve internal factors on commutation failure and the commutation failure property of converter valves.