Technical FAQs 4

What is Ningxia power's energy storage station?

On March 31, the second phase of the 100 MW/200 MWh energy storage station, a supporting project of the Ningxia Power’s East NingxiaComposite Photovoltaic Base Project under CHN Energy, was successfully connected to the grid. This marks the completion and operation of the largest grid-forming energy storage station in China.

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.

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 the largest grid-forming energy storage station in China?

This marks the completion and operation of the largest grid-forming energy storage station in China. The photo shows the energy storage station supporting the Ningdong Composite Photovoltaic Base Project. This energy storage station is one of the first batch of projects supporting the 100 GW large-scale wind and photovoltaic bases nationwide.

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