Novel grid-load-storage integrated power station system

Abstract

The invention discloses a novel power station system based on grid-load-storage integration. The system comprises distributed new energy, a power grid, an energy storage power station, a user, and grid-load-storage resources, and the integrated design is carried out by employing the minimization of the user cost and the emergency power supply of a power grid fault as targets. According to the invention, a nearby power distribution, power utilization and power selling one-stop solution is realized, the user cost can be reduced, at the same time, the local consumption of distributed new energy can be promoted to the greatest extent, and an emergency power supply guarantee is established for the user. The system can also participate in demand side response of the power grid and power grid peak regulation and frequency modulation auxiliary service. According to the invention, the problems of electricity abandoning and loss of new energy long-distance power transmission can be solved, the local absorption of new energy is realized, the income of a novel power station is greatly improved, the innovation of the income mode of the power station is realized, and the system has good economicbenefits and social energy supply innovation.

Description

[0001] The invention relates to the field of distribution network and energy storage, in particular to a novel power station system integrating grid, load and storage. Background technique [0002] Domestically and internationally, there are currently serious imbalances in the distribution of power generation sources and loads. At the same time, power plants such as hydropower plants, photovoltaic power plants, and wind power plants have difficulties in accommodating new energy power generation such as abandoning water, light, and wind. question. All of these have caused a serious imbalance in the demand between the power generation source and the user-side power consumption, resulting in a great waste of power generation assets and energy, and caused long-distance transmission of energy, resulting in large transmission losses. Long-distance transmission requires large investment in high-voltage lines. In order to maximize the use of distributed energy and reduce energy long-...

AI Technical Summary

Problems solved by technology

[0003] In recent years, battery energy storage and distributed new energy have been widely used, but there are still problems such as unstable consumption of distributed new energy and high cost of electricity prices for users. In order to solve this problem and improve the income of power stations, a The new power station system based on the integration of grid, load and storage enables the power station not only to achieve local real-time balance between distributed new energy, grid power and load, but also to stabilize the power fluctuation of distributed new energy through energy storage. , to maximize the use of distributed new energy, and at the same time use the peak-to-valley price difference to reduce the electricity cost paid by users to the grid, realize the optimal power transaction between power stations and users, and users can also obtain lower-cost electricity. In addition, it can also realize the ability of the power station to provide users with emergency power supply in the event of a grid failure

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