Intelligent Microprocessor System Control and Registration of Data for Energy Audit

The report describes an intelligent information-measuring microprocessor system designed to monitor and collect data on the main parameters of electricity at the district substation: averaged values of mains voltage, load current, power loss, argument φ, ambient temperature, temperature of conductors and transformer windings. These data can be used both for operational management of the district substation on the digital substation technology, and in design practice for the reasonable choice of electric equipment of the power grid complex. Efficiency of control is provided by the chosen algorithm of calculation and indication of controlled values for an intermediate 1-minute averaging interval. For the accumulation of statistical data on these values for a long period, the principle of recording the values averaged over an interval of 1 hour is used. Implemented on STM-32 series microprocessors, a prototype of the system can accumulate information until the analyzer memory is full for 10 years.