REAL TIME MONITORING BESARAN LISTRIK UNTUK MANAJEMEN ENERGI GEDUNG KOMERSIAL BERBASIS WEB

Simbolon, Zulfan Khairil (2010) REAL TIME MONITORING BESARAN LISTRIK UNTUK MANAJEMEN ENERGI GEDUNG KOMERSIAL BERBASIS WEB. Industrial Electronic Seminar.

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Abstract

Monitoring of electrical energy parameter, such as voltage, current, active power, reactive power, power factor, and frequency, shall be done to guarantee quality of services for electric energy users. Energy management must be done to support decision making concerning to energy efficiency and cost, particularly for commercial building. Such effort is often called as demand side management. This research is aimed at developing a real-time measurement system which is capable of monitoring electrical energy parameter for commercial buildings. Real-time monitoring system developed in this study employs an ADC hardware named Multifunction NI DAQ 6008 (maximum 8 analog input, 12 bits, 10 kS/s) and LabVIEW 8.2 software. Both hardware and software manufactured by National Instruments are used to carry out data accuisition at the remote terminal unit (RTU). Aqcuired data is sent to the database server by LogSender application program. Here, JRealTimeChartView application developed in Java programming language is embedded into HTML tags to make the real-time presentation of the acquired data in graph format on the web page.Data saved in the database server is then processed to make daily, monthly, and yearly reports. The reports are presented on the web using an application named GrafikBebanBesaran which is also embedded into HTML tags. Data acquisition of voltage at RTU is done by reducing voltage from AC 220 volt to AC 3 volt used step down transformer and hereinafter is put into analog input at NI DAQ 6008, while for data acquisition of electric current is used by Current Transformer 50/5A. Induction current yielded by CT is put into analog input at NI DAQ 6008. Obtained data, calibrated to become data like the original data using software LabVIEW. This research yields measurement data of electrical energy parameters saved at a server database. This database contains data of electrical energy parameters sent from RTU. The data are applied to yield electrical energy parameters graphed in real-time. The data also applied to make daily, monthly, and yearly reports in the form of graphs. Keywords: LabVIEW, database, real-time monitoring, web, energy management

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