Matched peak regulation power supply regulation and multi-source coordination peak regulation method

Abstract

The invention discloses a matched peak regulation power supply regulation and multi-source coordination peak regulation method, which comprises the following steps of s1, determining the power generation capacity in a week according to the available capacity and the storage capacity of electric quantity, s2, predicting a new energy power generation curve and a load curve of a week time scale of asystem, and s3, determining hydropower according to the system delivery curve, the new energy power generation and load curve and the hydropower generation capacity. The technical characteristics of hydropower and wind power are complementary, the wind power is different in uncontrollable randomness and intermittency, and the water storage capacity of the reservoir can stabilize short-term fluctuation of incoming water, so that the hydropower has good capacity characteristics; daily fluctuation of wind power can be stabilized in a mode of generating less water and electricity on a dispatchingday with large wind power and generating more water and electricity on a dispatching day with small wind power, the water and electricity are convenient to start and stop, adjustment is rapid, additional expenditure is avoided, and the method is more economical than a method of stabilizing wind power fluctuation by using thermal power.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a matching peak-shaving power supply regulation and multi-source coordinated peak-shaving method. Background technique [0002] In recent years, my country's renewable energy has developed rapidly. The total installed capacity of wind and solar power in my country ranks first in the world. The peak shaving method can no longer meet the requirements of making full use of the control resources of the AC-DC hybrid large power grid to improve the service capability of new energy grid connection. The existing problems are mainly manifested in the hierarchical division according to the connection line plan set between the grids and the DC system transmission plan. Each level of power grid control center can only use the resources of the power grid under its jurisdiction for peak regulation. In many cases, it faces the problem of difficult peak regulation, which often leads to the...

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Problems solved by technology

[0002] In recent years, my country's renewable energy has developed rapidly. The total installed capacity of wind and solar power in my country ranks first in the world. The peak shaving method can no longer meet the requirements of making full use of the control resources of the AC-DC hybrid large power grid to improve the service capability of new energy grid connection. The existing problems are mainly manifested in the hierarchical division according to the connection line plan set between the grids and the DC system transmission plan. The power grid control center at each level can only use the resources of the power grid under its jurisdiction for peak regulation. In many cases, it faces the problem of difficult peak regulation, which often leads to forced wind and light

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