How does AVC work?

When the voltage strays from its set standard, AVC sends signals to the generators to adjust their reactive power output, thereby bringing the voltage back within the acceptable range. The AVC system, like AGC, is managed by a central controller that oversees and adjusts the reactive power output of multiple generators.

What is automatic generation control (AGC) & AVC?

Two of the most critical functionalities within an EMS are Automatic Generation Control (AGC) and Automatic Voltage Control (AVC). These features play a pivotal role in maintaining the stability of both frequency and voltage within the power grid. AGC is an automated control technology designed to maintain the frequency stability of a power system.

What is the difference between AGC and AVC?

The primary difference between AGC and AVC lies in their control targets. AGC is focused on frequency control, while AVC is concerned with voltage control. Both parameters are crucial for the reliable operation of power systems, but frequency deviations generally have a more immediate and significant impact on the operation of electrical equipment.

How does AGC work?

It works by continuously monitoring the grid’s frequency and adjusting the active power output of generators in response to any deviations. When the grid frequency deviates from the standard, AGC sends signals to the generators to either increase or decrease their power output, ensuring that the frequency returns to the desired range.

What are energy storage systems (ESS)?

Energy Storage Systems (ESS) have become integral to modern power grids, offering solutions like peak shaving, load leveling, and frequency regulation, which are essential for maintaining grid stability and efficiency.

How do energy storage systems maximize revenue?

In these regions the potential revenue of ESSs is dependent on the market products they provide. Generally, the EMS tries to operate the ESS to maximize the services provided to the grid, while considering the optimal operation of the energy storage device. In market areas, maximizing grid services is typically aligned with maximizing revenue.