6533b7d9fe1ef96bd126c4a5
RESEARCH PRODUCT
An Innovative Measurement Approach for Load Flow Analysis in MV Smart Grids
Valentina CosentinoGiovanni TinePierluca RussottoAntonio CataliottiEnrico TelarettiDario Di Carasubject
EngineeringGeneral Computer Science020209 energy02 engineering and technologyload flow analysispower system monitoring0202 electrical engineering electronic engineering information engineeringElectronic engineeringPower-flow studyMATLABSimulationcomputer.programming_languagebusiness.industrySystem of measurement020208 electrical & electronic engineeringAdvanced metering infrastructure load flow analysis power quality analyzer (PQA) power system measurements power system monitoring smart grid (SG).AC powerpower quality analyzer (PQA)power system measurementsPower (physics)smart grid (SG)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSmart gridAdvanced metering infrastructurebusinesscomputerLow voltageSettore ING-INF/07 - Misure Elettriche E ElettronicheVoltagedescription
This paper proposes a novel measurement procedure for load flow analysis in medium voltage (MV) smart grids. The new approach is based on power measurements at low voltage (LV) side of MV/LV distribution substations. Such measurements are carried out by means of power quality analyzers. If compared with the load flow methods based on measurements at the MV side, the proposed approach has a lower cost and it offers an equally reliable measurement system. The proposed algorithm takes the basic concept of the current summation backward/forward method; some modifications are introduced to use LV load powers measurements. To this aim, the MV/LV power transformer is properly modeled and taken into account in the algorithm. The proposed approach is validated by means of both simulations and experimental measurements; the test system is the MV distribution grid of Ustica Island, Italy. First, the proposed algorithm is compared with the MATLAB/Simulink load flow tool, which is based on the traditional Newton-Raphson method. Second, a comparison is carried out between the proposed method and the measurement data collected in the actual MV network of Ustica. Such comparison takes into account the uncertainties of both proposed method, and experimental active and reactive MV power measurements.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-03-01 |