基於PLC-LabVIEW及Internet之電力需量監控系統人機介面研製

Implementation of Human-Computer Interface Based on PLC-LabVIEW and Internet for Power-Demand Monitoring and Control System

林昌逸(Chang-Yi Lin)

指導教授 ： 蘇偉府

崑山科技大學/工程學院/電機工程研究所/碩士(2010年)

摘要

本論文利用LabVIEW圖形化軟體和網際網路來研製電力需量監控系統之人機介面，整合了TCP/IP、集合式電錶、RS-232、RS-485、PLC、工業級人機介面、Modbus通訊協定等設備，完成需量預測及應用PID執行自動卸載等功能。除現場端可利用工業級人機介面做數值顯示及相關設定外，遠端亦可依據即時電力數據進行需量管理、需量監控及需量曲線分析，並可將各個不同功能之選項與資料顯示於監控畫面上，達到報表記錄與系統功能安全性等要求，除使操作介面更具多元化外，更可避免超約罰款而達到節省電費的目的。
本文所完成之網路式電力需量監控系統人機介面，主要是讓用電戶可簡易安裝程式執行檔，在任何一個有網路的地點，均可進行即時遠端監控，有效地掌握用電情況並提昇用電品質和效率。當發現異常用電現象時，即能即時處理，以減少不必要的電費支出，故可增加系統穩定度和供電可靠度。同時可提昇中小企業的裝設意願，帶動市場需求，抑低台電尖峰時段電力不足的壓力。

關鍵字

LabVIEW ； 網際網路 ； PLC ； 人機介面

並列摘要

In this thesis, the LabVIEW graphical development software and Internet are utilized to design the human-computer interface for power-demand monitoring and control system. The TCP/IP, digital Kilo-Watt meter, RS-232, RS-485, programmable logic controller (PLC), industrial human-machine interface, and Modbus communication protocol, etc., has been combined together for the purpose of calculating the power demand and automatic load shedding via PID control. In addition to monitor data and set up parameters through the human-computer interface at the scene, via Internet and real-time power data acquisition, the system can be connected to the remote computers. Then the general software package can be adopted for the demand management, demand control and demand curve analysis. Furthermore, it also has the functions of different options display and data record to make the interface easy-to-use and operation user friendly. Therefore, the various enterprises can master the power consuming situation at any time and avoiding being fined because of surmounting the contract capacity. That is, the purpose of electrical charge saving is achieved.
The human-computer interface for power-demand monitoring and control system designed in this thesis, it can be easily to install through the computer executable program to supervise and control one’s own power consumption in any location with Internet. When power system appears abnormal power consumption phenomenon, the operators can immediately manipulate to decrease the dispensable electrical charge and system stability and reliability will be increased. Thus, the installation possibility of small and medium enterprises will be increased that will be promoted the market demand and relaxed Taipower electricity shortage during peak hours.

並列關鍵字

LabVIEW ； Internet ； PLC ； Human-Computer

參考文獻

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