Schematic diagram of photovoltaic and wind power sharing energy storage power station

What is a solar energy grid integration system?

Develop solar energy grid integration systems (see Figure below) that incorporate advanced integrated inverter/controllers, storage, and energy management systems that can support communication protocols used by energy management and utility distribution level systems.

What is a wind energy storage system?

A wind energy storage system, such as a Li-ion battery, helps maintain balance of variable wind power output within system constraints, delivering firm power that is easy to integrate with other generators or the grid. The size and use of storage depend on the intended application and the configuration of the wind devices.

How do wind-storage hybrid systems work?

Wind-storage hybrid systems operate and dispatch power based on their intended function and configuration in relation to the external power grid. For example, a hybrid system operating in an isolated grid may differ significantly than the same hybrid system in grid-connected mode.

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.

What is a stand-alone PV power system?

Stand-alone PV power systems must already deal with issues of this type, albeit on a much smaller scale. Inverters in stand-alone systems must regulate their output alternating current (AC) bus voltages by supplying current as needed to maintain voltage.

How do PV systems integrate with a utility?

Integration issues need to be addressed from the distributed PV system side and from the utility side. Advanced inverter, controller, and interconnection technology development must produce hardware that allows PV to operate safely with the utility and act as a grid resource that provides benefits to both the grid and the owner.