What is a power system aggregator?

This unified entity operates in power system markets, participating in both wholesale and retail transactions, as well as providing services to the operator. Essentially, an aggregator is a company that manages a VPP, which in turn is a collective assembly of DERs .

What is a power aggregation model?

Comprehensive expression for power aggregation models of VPP. In the aggregation model based on representative data, the DNO is responsible for network modeling and estimating network states, and sends representative data to the VPP, including forecasted values of network variables and sensitivity coefficients.

How can a virtual power plant implement a dynamic aggregation mechanism?

When the acquired frequency control requirements and resource regulation characteristics change due to changes in grid dynamics or user habits, the virtual power plant can implement a dynamic aggregation mechanism based on a threshold. Then, the dynamic aggregation mechanism is divided into two parts: resources selection and coordination.

Are aggregates a key tool for energy management?

As more utilities and energy markets adopt a decentralized approach to energy management, these aggregates are likely to become a key tool for optimizing the use of distributed energy resources and enabling the participation of prosumers in a greater market .

What is a dynamic aggregation mechanism for VPPs?

A dynamic aggregation mechanism for VPPs is proposed for the first time, which includes dynamic resource selection and coordination processes.

What aggregation techniques are used in VPPs?

In practice, the choice of aggregation techniques for VPPs depends on resource characteristics, grid requirements, and implementation complexity. Currently, commonly used aggregation techniques include rule-based aggregation, aggregation with static clustering, and market-based aggregation.