Signal quality

Improved Signal Quality

This page is intended to show you what exactly comes out of our last generation grid-tied inverter and some smart grid features stemming from the latest standards. We also emphasize the higher quality of Idenergy’s signal control technology. A demonstration video is also available so you can observe these functions dynamically.

Real Power

When producing electricity from solar panels, the current output of the inverter is synchronized with the grid voltage, following its usual sinusoidal shape.

REAL POWER PRODUCTION

Voltage Ride Through

When the grid voltage varies (increasing of decreasing), the inverter must contribute to the grid stability by:

Withstanding this variation and not disconnecting
Outputting a regular amount of power to the maximum of its capacity

GRID VOLTAGE DECREASING TO 50%

GRID VOLTAGE INCREASING BACK TO 100%

Reactive Power

Reactive power is the state when the current output of the inverter is not in phase with the grid voltage. It requires almost no energy to push current as it is happening when the voltage is low and thus consumes no real power.

Leading and Lagging

Reactive power can be in both directions, depending on whether it is injected late or in advance. It will influence the power factor and also make the grid voltage increase (lagging) or decrease (leading).

REACTIVE CURRENT LEADING
(3.05 kVAR example)

REACTIVE CURRENT LAGGING
(3.4 kVAR example)

Demonstration
Video

In the following video, you will see our inverter respond to voltage and frequencies variations from the grid, in our laboratory. We also demonstrate reactive power injection, both leading and lagging, as well as a transient.

Transients

In grid-tied inverter applications, transients are the short time periods in which the inverter changes from one steady operating point to another. It can be caused by changes in grid voltage in terms of voltage level or frequency, or changes in inverter controller set points. Transient states must be carefully controlled to avoid high current spikes that could damage inverter components or other devices on the grid. In the case of an inverter, the quality resides in the signal control during these transients and the required time to control them. This is where Idenergy’s technology excels and leaves competition behind. Below are some examples.

REACTIVE POWER
(from 0 TO 2.55 kVAR)