The invention discloses an overhead line system wire overheating protection method and system based on actually measured temperature, and relates to the technical field of rail transit. The temperature of a carrier cable and the temperature of a contact line on an outlet side of a substation are detected, the real-time temperature of an overhead line system wire at a head end of a power supply armcan be truly reflected, the tripping of a feeder circuit breaker of an overhead line system substation is controlled according to the temperature of the carrier cable and the temperature of the contact line on the outlet side of the substation, and the overheating protection on the overhead line system wire is achieved. Compared with a mobile temperature monitoring mode, the method can realize the real-time temperature on-line monitoring of the overhead line system wire at the head end of the power supply arm; compared with a method for evaluating the temperature rise of the overhead line system wire based on wire current and environmental conditions, the temperature detection is more direct, the accuracy is higher, and the method can be better applied to the overheating protection of theoverhead line system wire.
本发明公开了一种基于实测温度的接触网导线过热保护方法、系统,涉及轨道交通技术领域。本发明对变电所出口侧的承力索温度和接触线温度进行检测,能够真实的反应供电臂首端的接触网导线的实时温度,根据变电所出口侧的承力索温度和接触线温度控制接触网变电所的馈线断路器跳闸,实现对接触网导线进行过热保护;相对于移动温度监测方式,该方法能够实现对供电臂首端的接触网导线的实时温度在线监测;相对于基于导线电流和环境条件评估接触网导线温升的方法,温度检测更直接,准确度更高,能更好的应用于接触网导线的过热保护。
Overhead line system wire overheating protection method and system based on actually measured temperature
一种基于实测温度的接触网导线过热保护方法、系统
2020-08-04
Patent
Elektronische Ressource
Chinesisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / G01J Messen der Intensität, der Geschwindigkeit, der spektralen Zusammensetzung, der Polarisation, der Phase oder der Pulscharakteristik von infrarotem, sichtbarem oder ultraviolettem Licht , MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT / G01K MEASURING TEMPERATURE , Messen der Temperatur |
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