As an important component of new energy generation, the number and capacity of photovoltaic power stations are constantly increasing throughout the world. However, the reactive power loss inside a photovoltaic power station is also increasing, so photovoltaic power stations need reactive power compensation. In this post, we will provide a detailed introduction to the demand and application of reactive power compensation in a PV power plant.
1. Reactive power required in PV power plants
The reactive power demand of photovoltaic power stations mainly comes from four aspects: PV inverters, step-up transformers, overhead or underground power transmission lines, and the main transformer connecting to local grid network. Among them, changes in photovoltaic power can cause drastic changes in reactive power loss. At night, the reactive power output of the photovoltaic system is zero, and the transformer will be in an unloaded state. Moreover, the reactive power of photovoltaic power stations not only varies periodically and randomly, but also has a dual demand for capacitive reactive power compensation and inductive reactive power compensation.
2. Application of Reactive Power Compensation in Photovoltaic Power Plants
Given the demand for capacitive reactive power compensation and inductive reactive power compensation in photovoltaic power plants. SVG static var generator can be installed for bidirectional compensation of the power grid.
3. Harmonic and harmonic control
Due to the presence of a large number of nonlinear load devices in photovoltaic power plants, serious harmonic pollution can occur. We have to use some harmonic filtering devies to control this bad impact to the local power grid networka and PV power system, thus to enhance power quality and stability of the whole elecitrical collecting & distribution system.
Conclusion, Photovoltaic and wind power generation are important parts of new energy generation. However, there are serious power quality issues in their systems that require the use of reactive power compensation and harmonic management technology to solve.
PowerTel and his dedicated engineers are able to provide you an optimal design and installation for your PV power plants, inlcuding the application of reactive power compensation.
