Abstract
Power quality and energy consumption measurements support providers and energy users with solutions for acquiring and reporting information about the energy supply for residential, commercial, and industrial sectors. In particular, since the average number of electronic devices in homes increases year by year and their sensitivity is very high, it is not only important to monitor the total energy consumption, but also the quality of the power supplied. However, in practice, end-users do not have information about the energy consumption in real-time nor about the quality of the power they receive, because electric energy meters are too expensive and complex to be handled. In order to overcome these inconveniences, an innovative, open source, low-cost, precise, and reliable power and electric energy meter is presented that can be easily installed and managed by any inexperienced user at their own home in urban or rural areas. The system was validated in a real house over a period of two weeks, showing interesting results and findings which validate our proposal.
Highlights
Electric energy meters are devices that are often installed in buildings and businesses in order to measure the amount of consumed electric energy [1]
The power quality (PQ) monitoring and smart metering device is designed by coupling a Linux ARM board and an analog front end (AFE) managed by an STM32 microcontroller
Electric energy meters and power quality analyzers are often used by power engineers and technicians to discover the health state of power systems
Summary
Electric energy meters are devices that are often installed in buildings and businesses in order to measure the amount of consumed electric energy [1] (i.e. these meters are installed for billing purposes [2]). Some power quality analyzers are used by engineers, electricians, maintenance, and facilities technicians to record power quality, carry out diagnostic work on electrical systems or devices, identify energy waste in facilities (in kilowatt hours, kWh), and detect and prevent power issues before they happen They are expensive and difficult to use for unskilled users, being utilized to carry out advanced energy saving audits. Thanks to a multidisciplinary group of computer and electrical engineers, it has been possible to design and build an advanced device that combines and improves many features of much more expensive commercial devices under the aegis of open source software This is a low-cost device because it can be assembled for less than 50 USD.
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