Abstract
The actual operation of the power distribution systems asks for high power quality (PQ). This fully justifies the investments in improving the metrics of power grid performances. But maintaining a PQ data infrastructure in a numerous locations is time-consuming and prohibitive. Moreover, each PQ monitor releases its own data format. These considerations justified using of a central PQ management system able to manipulate elliptical and time discontinuous information. The paper presents the characteristics of a webbased application designed to collect the data measured with different technologies of monitors and translate them into a common PQ data interchange format allowing comprehensive and long-duration grid operation assessment. The unitary formatted data generated by this customized software tool can be further processed by a proprietary software platform for PQ management owned by the network operator. The present version of this conversion tool is applicable only for one product family operating in the local power distribution grid. Further development is planned for integrating other two monitor vendors/families.
Highlights
The nature of the actual power quality (PQ) issues fully justifies the investments for improving the metrics of the power grid operator performances as a key measure in increasing: the reliability, efficiency, as well as the satisfaction of the power grid’s users
In accordance with the national Performance Standard for Power Distribution Service [1], the power distribution grids’ operator (DGO) must assume the obligations regarding keeping within standards of the power reliability and quality
Comprehensive information regarding the PQ level at the interconnection buses between the power distribution grids and their users allows a better assessment of the system operational conditions, the causes of PQ disturbances and the appropriate mitigation measures
Summary
The nature of the actual power quality (PQ) issues fully justifies the investments for improving the metrics of the power grid operator performances as a key measure in increasing: the reliability, efficiency, as well as the satisfaction of the power grid’s users. Maintaining a PQ data collection infrastructure in a very large number of locations over a very long time is time-consuming and prohibitive (the cost of an equipment with required performance amounts to around 10000 Euros) This leads the power utilities to cope with GB’s of real data. The development and use of a standard power quality data interchange format will make this data accessible for analysis, so that the utility or customer can increase the number of monitored points without large capital outlays for equipment. Specialized analysis can be performed with an integrated platform as PQView® (PQ management and analysis software system) [6] Such kind of system is currently used by the local DGO. SYMMPQI_PQDM is a customized software module that basically collects the output data measured with different technologies of PQ monitors and translate them into a unitary format – PQDIF standard.
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