Why is reactive power important in a grid service inverter?
Reactive power is one of the most important grid services inverters can provide. On the grid, voltage— the force that pushes electric charge—is always switching back and forth, and so is the current—the movement of the electric charge. Electrical power is maximized when voltage and current are synchronized.
What is grid communication?
Much of grid communication is performed over purpose-built communication networks owned and maintained by grid utilities. Broadly speaking, grid communication systems are comprised of multiple transport technologies and protocols carried by a variety of media.
Do inverters provide or absorb reactive power?
Modern inverters can both provide and absorb reactive power to help grids balance this important resource. In addition, because reactive power is difficult to transport long distances, distributed energy resources like rooftop solar are especially useful sources of reactive power.
How does an inverter convert DC to AC?
Fundamentally, an inverter accomplishes the DC-to-AC conversion by switching the direction of a DC input back and forth very rapidly. As a result, a DC input becomes an AC output. In addition, filters and other electronics can be used to produce a voltage that varies as a clean, repeating sine wave that can be injected into the power grid.
How does a grid forming inverter work?
Grid-forming inverters can start up a grid if it goes down—a process known as black start. Traditional “grid-following” inverters require an outside signal from the electrical grid to determine when the switching will occur in order to produce a sine wave that can be injected into the power grid.
How can communications support the grid of the future?
Ensuring the reliable and resilient delivery of electrical energy is critical for the U.S. economy, which increasingly relies on secure communications systems to support grid operations. Adapting to the grid of the future requires a comprehensive understanding of the differences between communication technologies that support grid operations.
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