Abstract
The article is dedicated to a simulation model of a wind/solar power plant. A variable speed diesel generator set is used as a backup energy source. A matrix frequency converter is used to control frequency of the generated voltage. The simulation model is implemented in the MATLAB Simulink environment. Oscillograms of currents and voltages are obtained when the model operates with an active inductive electrical load with the variable load value in the 1000–4000 VA range. During operation with a rated power load, the deviation of the line voltage parameters lies within the normal range (load voltage drop does not exceed 4% of the nominal value, total harmonic distortion does not exceed 2% in the 0–2000 Hz range). The constructed model can be used in the design of energy facilities, as well as in the development and testing of algorithms for control and monitoring systems.
Highlights
Nowadays the world electricity sector is boosting power of the units, using renewable energy sources
Current research shows that constant shaft speed engine operation at a changing load rate leads to the power unit increased mechanical wear and higher fuel consumption, variable speed diesel generator units are of interest for both researchers [10–14] and research and production enterprises (Fubag, Honda, Kipor, VNIIE, Sigma PLC (Kovrov), Zvezda PLC (St.Petersburg), VGUVT
The modelling has been accomplished in MATLAB Simulink environment at the electric load power step change within the range of 1000–4000 VA, cosφ 0,95 and 50 Hz load voltage frequency
Summary
The article is dedicated to a simulation model of a wind/solar power plant. A variable speed diesel generator set is used as a backup energy source. A matrix frequency converter is used to control frequency of the generated voltage. Oscillograms of currents and voltages are obtained when the model operates with an active inductive electrical load with the variable load value in the 1000–4000 VA range. During operation with a rated power load, the deviation of the line voltage parameters lies within the normal range (load voltage drop does not exceed 4% of the nominal value, total harmonic distortion does not exceed 2% in the 0–2000 Hz range). The constructed model can be used in the design of energy facilities, as well as in the development and testing of algorithms for control and monitoring systems
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