Voltage Stabilizer for Photovoltaic Inverters

Voltage Stabilisers
10 August 2023
Voltage Stabilizer for Photovoltaic Inverters


The increasing adoption of photovoltaic systems as a renewable energy source has revolutionised the energy sector. However, this transition to solar is not without its challenges, especially when it comes to ensuring optimal power quality. The interfacing of photovoltaic systems to the electricity grid can present power quality problems that affect system stability. With this in mind, voltage stabilisers designed for photovoltaic inverters play a crucial role in solving these challenges.

Grid voltage fluctuations

Photovoltaic inverters, which transform the direct current produced by solar panels into ready-to-use alternating current, can cause unwanted fluctuations in the grid voltage. These fluctuations can affect the reliability of the power supply and compromise the efficiency of the system. In order to prevent unwanted interruptions and ensure compatibility with the power grid, the use of interface relays is often required. However, this solution can lead to inefficiencies and interruptions in power generation.
This is where the solution offered by voltage stabilisers comes in. These devices are able to keep the output voltage of the inverter within predefined limits, ensuring a continuous flow of energy without unwanted fluctuations. This not only improves system reliability, but also contributes to higher system efficiency, thereby optimising energy production.

Power factor degradation

Another major problem associated with photovoltaics is power factor degradation. This phenomenon occurs when the system draws a smaller active component than the reactive component from the grid, causing the overall power factor to drop. This can lead to penalties on the energy bill and create problems related to low cosφ, with possible negative consequences on the efficiency and lifetime of the system.
Power factor correction systems present themselves as an effective solution to address this problem. Such equipment plays a crucial role in keeping the power factor within acceptable limits. This not only prevents penalties on the energy bill, but also improves the overall efficiency of the photovoltaic system.


The widespread adoption of photovoltaic technologies is an important step towards a sustainable energy future. However, in order to maximise the benefits of this transition, it is crucial to address power quality challenges. Voltage stabilisers designed for photovoltaic inverters offer a key solution for improving system stability and efficiency. By regulating the inverter’s output voltage and keeping the power factor within limits, these devices help ensure a reliable energy flow. In the ever-changing landscape of solar energy, voltage stabilisers are a step towards a cleaner and more reliable energy future.


For more info on voltage variations solutions