CAJ | 학술논문

为了满足区域性稳控系统在联调过程中站站之间、厂站之间视音频的通信需求,提出了利用稳控系统的数据传输信道的剩余闲置带宽传送现场语音及图像的方法,分析了稳控系统的通信报文与视音频数据包的不同特点,给出了混编两类不同数据类型的编码算法及无失真实时分离识别算法.利用优先级划定法解决了稳控系统对数据实时性要求与语音图像数据流量大的矛盾,并建立了一对一及一对多的实际稳控系统模型进行试验验证.试验结果表明,在保证稳控系统的运行安全可靠的同时,语音图像传送流畅清晰,有效利用了稳控系统信道的闲置带宽,提高了通信通道的利用率.研究成果在广东220 kV端州变及1120 MW云浮电厂的稳控系统中安装使用,有效提高了稳控系统联调时的效率及结果准确性,并在厂站的日常运维监控中提供了极大的方便性.
위료만족구역성은공계통재련조과정중참참지간、엄참지간시음빈적통신수구,제출료이용은공계통적수거전수신도적잉여한치대관전송현장어음급도상적방법,분석료은공계통적통신보문여시음빈수거포적불동특점,급출료혼편량류불동수거류형적편마산법급무실진실시분리식별산법.이용우선급화정법해결료은공계통대수거실시성요구여어음도상수거류량대적모순,병건립료일대일급일대다적실제은공계통모형진행시험험증.시험결과표명,재보증은공계통적운행안전가고적동시,어음도상전송류창청석,유효이용료은공계통신도적한치대관,제고료통신통도적이용솔.연구성과재엄동220 kV단주변급1120 MW운부전엄적은공계통중안장사용,유효제고료은공계통련조시적효솔급결과준학성,병재엄참적일상운유감공중제공료겁대적방편성.
In order to meet the communication requirement that emerges from the joint debugging process between station and station or plant and station for regional stability control system, this paper proposes a method for transmitting video-audio data on-spot via the idle bandwidth of the data transmission channel of regional stability control systems and analyzes the differences between communications of regional stability control systems and video-audio data packets. What’s more, it gives a coding algorithm which mix coded two different data types and a distortionless real-time separation recognition algorithm. At last, it uses priority designated method to solve the contradiction between data timeliness of the stability control systems and excessive video-audio data traffic, in addition, establishes an actual stability control system model (one-to-one or one-to-many) for experimental verification. The test results show that stability control system works safely and reliably, the image transmission is smooth and clear, and using the method mentioned above has significantly improved the utilization of the communication channel. The research achievement has been used in the stability control systems of 220 kV Duanzhou transformer substation and 1120 MW Yunfu power plant, which effectively improves the efficiency and the accuracy of the stability control systems joint debugging, and provides a great convenience in the day-to-day operation and maintenance monitoring.