Enterprises related to power plant energy storage peak regulation

What is peak-regulation capability of a power grid?

Principle of the evaluation method The peak-regulation capability of a power grid refers to the ability of power supply balancing with power load, especially in the peak load and valley load periods. Specifically, the adjustment range of power supply in one day should be high enough to reach the peak load and low enough to reach the valley load.

What is peak regulation?

Peak-regulation refers to the planned regulation of generation to follow the load variation pattern either in peak load or valley load periods. Sufficient peak-regulation capability is necessary for the reliable and secure operation of power grid, especially in urban regions with extremely large peak–valley load difference (Jin et al., 2020).

What is the optimal energy storage allocation model in a thermal power plant?

On this basis, an optimal energy storage allocation model in a thermal power plant is proposed, which aims to maximize the total economic profits obtained from peak regulation and renewable energy utilization in the system simultaneously, while considering the operational constraints of energy storage and generation units.

What is peak regulation & power system flexibility?

The peak regulation (PR) service provided by generation plants are the major source of power system flexibility. PR means that the plants changing its’ generation to match the power demand. As the main power resource in most countries and regions, including China, coal-fired power plants are the most important source of power system flexibility.

What is peak-regulation capability?

Also, the peak-regulation capability determines the renewable energy consumption and power loads of cities by mitigating power output fluctuation in the regulation process of power grid.

Do coal-fired power plants provide peak regulation service?

The hydropower plants, wind plants and solar plants are each aggregated to one plant. The imported electricity is assumed to be a virtual plant. In this study, all plants provide peak regulation (PR) service within the technically feasible load rate range, but the focus is on the DPR service of coal-fired power plants. Fig. 1.