Distributed photovoltaic inverter phase advance

Can advanced inverters be used in the design of solar photovoltaic systems?

The use of advanced inverters in the design of solar photovoltaic (PV) systems can address some of the challenges to the integration of high levels of distributed solar generation on the electricity system.

When do inverters disconnect a distributed PV system?

As mentioned above, current standards require that inverters disconnect the distributed PV system when grid frequency or voltage falls outside a specified range. However, inverters have the capability of “riding through” minor disturbances to frequency or voltage.

Can advanced PV inverters increase penetration of DSG?

Advanced PV inverters have fault ride through (FRT) capabilities and functionalities to support reactive power to the grid. Implementation of advanced inverters and their control strategies into electric power system (EPS) would help to increase penetration of DSG.

What are advanced inverters?

Although the term “advanced inverters” seems to imply a special type of inverter, some of the inverters currently deployed with PV systems can already provide advanced functionality, needing only software upgrades or adjustments to operation parameters.

Can PV inverters fold back power production under high voltage?

Program PV inverters to fold back power production under high voltage. This approach has been investigated in Japan, and though it can reduce voltage rise, it is undesirable because it requires the PV array to be operated off its MPP, thus decreasing PV system efficiency and energy production.

What are advanced PV system technologies?

Advanced PV system technologies include inverters, controllers, related balance-of-system, and energy management hardware that are necessary to ensure safe and optimized integrations, beginning with today’s unidirectional grid and progressing to the smart grid of the future.