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This paper discusses a project of monitoring a university campus grid using a network of smart meters. The aspects of hardware, software, and monitoring are provided. Some aspects of the benefits of this monitoring in terms of power quality, grid efficiency, and health monitoring are discussed in the paper.
For a groundwater source heat pump (GWHP) system, how to realize system high efficiency operation is very important issue. On basis of development idea of modular and open energy management, a model of non-energy-saving (NES) fault diagnosis has been presented, the model involves input of basic characteristic data and index characteristic data and output of NES fault factors, the relationship database...
A new monitoring method of power quality based on the industrial computer is proposed. Using fast Fourier transform, synchronous sampling signal from the data acquisition card is processed. This system can analyze and display the power quality parameters. The results of the experiment show that the system can monitors and analyzes the power quality parameters in power systems with long time, and harmonic...
One presents a complex data acquisition structure used for the monitoring and diagnosis of a system used for electric power transmission in the zone of large power source. The structure is also used for the optimization of power network operation in order to use the network also for the transmission of electric signals other than those of 50 Hz. The schematic of the monitored system is presented,...
Currently using high-tech means, in the meter to steal of rampant, illegal means and how many have concealed; and to prevent, detect, and investigate this unlawful manner is extremely difficult. Wuxi company last year through an anti-stealing power struggle, as at 20 September, the city in which a total of 127-stealing household electricity tariff measure correction house, 24.08, receive breaking...
This paper investigates the use of Ethernet/IP communications protocol for data acquisition and control of electrical networks in an industrial environment. A high-speed communication connection among all the devices operating in a distribution network using breakers, contactors, relays, power meters and other devices may allow a large amount of data to be exchanged to and from an industrial/utilities...
This paper presents a LabVIEW-aided PID designed controller to monitor DC motor speed and uses the software simulation of VisSim to analysis its response. First, design the drive circuit of DC motor and as the feedback signal through the photo sensor and 8051 chip modules to produce rotational speed signal, and show from SEG7 displays. To take out the analog signal through D/A converter at the same...
The paper outlines a stand alone (S.A.) PV plant of 3 kWp linked to an agro-refrigeration unit during summer period and to the loads of the solar energy laboratory the rest of the year. It also describes the procedures followed to convert it to a remotely monitored one using the Web services. The signals and data from the different elements of the PV plant are managed through MatLab software loaded...
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