Photovoltaic power station generator reducer

Is a photovoltaic generator a PQ node?

Unlike a conventional generator that is often modeled as a PV node (set the generator’s terminal voltage and its active power output constant), a photovoltaic generator is operated as a PQ node (set the photovoltaic generator’s active power and reactive power outputs constant).

How does a PV generator work?

By controlling the instantaneous three-phase inverter output voltages v a, v b and v c, the PV generator controls the active power output and the reactive power interchanges with the external grid.

Why should PV generators be integrated into the grid?

With the increased integration of PV generators into the grid, the system operators start to require PV generators have capabilities to stay online during the fault, and provide the active power and the reactive power supports when being required to do so.

Does PV system integration reduce power losses?

According to Figs. 9 and 10, it is observed that active power losses are reduced compared to the initial system (without PVDG integration) especially in buses 5, 13, and 14 after PV system integration to the proposed system That proves that the penetration of the PV system to the grid reduces power losses of each system node.

What is a static VAR generator (SVG)?

SVG (Static Var Generator) plays a vital role in photovoltaic power stations. It significantly improves the energy efficiency, grid stability and power quality of photovoltaic power stations by quickly and accurately providing or absorbing reactive power.

Does PV system reduce power loss?

According to these two figures, it can be concluded that the penetration of PV system into the grid reduce power losses and when the number of PVDG increases, power losses decreases more. Added to that, it can be proved according to results obtained above that PSO has better performance than GA in terms of power loss reduction.