METHOD FOR OPERATING CONVERTER AND CONVERTER DEVICE

• Main Authors: VIRTA ANTTI, MUSZYNSKI PETER, VILHUNEN ANTTI
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

A method for operating a converter and and a converter device are provided. An electric power converter (10) is configured to convert DC power into AC power supplied to a three-phase AC network (30),conclude, during the converting, that a single-phase tripping has started in the three-phase AC network (30) connected to the three-phase output of the converter (10), and after the concluding that the single-phase tripping has started in the three-phase AC network (30), control an active current in the three-phase output of the converter (10) such that a negative sequence voltage in the three-phase output of the converter (10) remains at or below a predetermined level, wherein the converter (10) is configured to perform the controlling until concluding that the single-phase tripping has endedin the three-phase AC network (30). 提供了用于操作转换器的方法和转换器装置。电力转换器(10)被配置成：将DC电力转换成供应给三相AC网络(30)的AC电力；在转换期间，断定在连接至转换器(10)的三相输出的三相AC网络(30)中已经开始单相跳闸；以及在断定在三相AC网络(30)中已经开始单相跳闸之后，控制转换器(10)的三相输出中的有功电流，使得转换器(10)的三相输出中的负序电压保持在预定水平处或预定水平以