Can inverter-tied storage systems integrate with distributed PV generation?

Identify inverter-tied storage systems that will integrate with distributed PV generation to allow intentional islanding (microgrids) and system optimization functions (ancillary services) to increase the economic competitiveness of distributed generation. 3.

Do distributed photovoltaic systems contribute to the power balance?

Tom Key, Electric Power Research Institute. Distributed photovoltaic (PV) systems currently make an insignificant contribution to the power balance on all but a few utility distribution systems.

How can a PV inverter be used in a utility system?

Integrate PV inverters into utility supervisory control and data acquisition systems or AMI systems. Inverters could be tied into utility communications systems, which would issue a warning to inverters in sections of the utility isolated from the mains. Any available channel, such as BPL, DSL, or coax, could be used.

Can a PV inverter provide voltage regulation?

A PV inverter or the power conditioning systems of storage within a SEGIS could provide voltage regulation by sourcing or sinking reactive power. The literature search and utility engineer survey both indicated that this is a highly desirable feature for the SEGIS.

How to choose a photovoltaic inverter?

The inverter of the photovoltaic power generation system should have the ability to adjust the power factor within the range of 0.95 leading to 0.95 lagging. If necessary, it should have the method predetermined by the State Grid Corporation, according to the voltage of the grid connection point within its reactive power output range.

What voltage does a distributed photovoltaic use?

Distributed photovoltaics with a capacity of 8 kW and below generally use low-voltage 220 V single-phase access. Distributed photovoltaics with a capacity of 8 kW-400 kW generally use low-voltage 380V three-phase access, as shown in Fig. 1.