DYNAMIC EQUIVALENT MODELING METHOD FOR DISTRIBUTED PHOTOVOLTAIC POWER STATION CLUSTER

• Main Authors: CAO, Ge, GU, Wei, LI, Peixin
• Format: Patent
• Language: Chinese; English; French
• Published: 28.03.2019
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A dynamic equivalent modeling method for a distributed photovoltaic power station cluster, relating to the technical field of grid connection, modeling, and simulation of distributed energy. The present method chooses electrical quantity waveforms, that can accurately describe dynamic characteristics of photovoltaic power stations as clustering indexes, and uses the dynamic time warping distances between all clustering indexes of the same kind of photovoltaic power stations as a metric of clustering, then calculates, according to the clustering result, clustering equivalent parameters of photovoltaic power stations in the same cluster, and performs equivalent simplification of a power distribution network. The present method can not only accurately capture the dynamic similarity between photovoltaic power stations, but also reduce the complexity of a model and the time for simulation calculation. L'invention concerne un procédé de modélisation équivalente dynamique pour un groupe de centrales photovoltaïques