A Multivariate Optimal Scheduling Method for Power Grids to Improve Wind Power Acceptance Capacity

Abstract

The invention discloses a power grid multiple optimization scheduling method for enhancing wind power acceptance capability, which belongs to the technical field of wind power generation consumption and aims at solving the main technical problems of insufficient power peaking capacity in a load valley period due to random volatility and intermittency of wind power and bad influences of direct participation in system peaking by nuclear power. Through building a wind power model with wind power uncertainty output based on error growth and simultaneously giving a wind power curtailment amount calculation model, a wind power output condition is predicted; with nuclear power as basic load as an example (a main power generation energy source in a different area can be used as basic load), coordinated scheduling with thermal power, hydropower, energy storage and so on is carried out, through pre-scheduling and an actual scheduling model, the nuclear power can participate in peaking through energy storage in a maximum output optimization condition, energy transfer and peak load shifting are realized, output of a clean energy source is maximized, and the acceptance capability of the new energy source is increased.

Description

technical field [0001] The invention belongs to the technical field of wind power generation accommodation, and in particular relates to a multi-element optimization scheduling method of a power grid for improving wind power capacity. technical background [0002] With the development of my country's social economy, the demand for energy is increasing year by year, and it has always been supported by the high consumption of petrochemical energy. This has caused the rapid decline in the reserves of non-renewable resources such as coal, oil and natural gas. If we want to achieve sustainable development, we must find renewable energy with large reserves and low pollution. my country's power generation industry mainly uses the combustion of petrochemical energy, but with the development of science and technology, the focus is to put In terms of wind power generation, my country has sufficient wind power resources, which are mainly distributed in the "Three North" regions with abun...

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Problems solved by technology

With the continuous expansion of the scale and capacity of wind power generating units, the proportion of wind power in the power generation resources of the power grid is gradually increasing, and the impact of large-scale wind power grid connection on the power system is becoming more and more significant; the random fluctuation and intermittent nature of wind power make Its dispatching method is different from that of conventional units, which will inevitably increase the difficulty of making grid power generation plans and dispatching schemes, and even affect the safety of grid operation in severe cases. Therefore, how to make better use of abandoned wind energy has become a problem that we need to solve urgently

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