Power generation control method and system based on abandoned electric balance

A power generation control and equalization technology, applied in the field of power control, can solve problems such as the time distribution of wind power and photovoltaic power generation, and the imbalance of generators without considering the difference in wind and solar resources

Active Publication Date: 2019-11-08
ELECTRIC POWER RES INST STATE GRID JIBEI ELECTRIC POWER COMPANY +2
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The flow chart of the existing new energy active power control control strategy is as follows: figure 2 As shown, the existing control methods do not take into account the differences in wind and solar resources and the time distribution of wind power and pho

Method used

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  • Power generation control method and system based on abandoned electric balance
  • Power generation control method and system based on abandoned electric balance
  • Power generation control method and system based on abandoned electric balance

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Embodiment Construction

[0089] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0090] Description of symbols for this application:

[0091] 1) The number of wind power and photovoltaic stations that can complete the tentative additional issuance order, W stands for windturbine, wind power; V stands for photovoltaic, photovoltaic.

[0092] 2)T s2 : The optimization period of the first stage (channel margin allocation stage), this value is known, and the value is generally determined by experience.

[0093] 3)K s2W with K s2V It is t...

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Abstract

The invention provides a power generation control method and system based on abandoned electric balance. A power generation increase amount of each node which can increase power is determined througha preset first allocation model, and then allocation control is performed. The first allocation model includes an abandoned electric balance constraint function, and the abandoned electric balance constraint function is a difference of abandoned electric rates of a wind node and a light force node and is less than a set allowable value. A wind and light cluster abandoned electric rate balance power generation is considered, and a power generation capability of a new energy field station is fully used. A utilization rate of a anew energy transmission channel is increased, simultaneously ' 'fairness' 'and "competition" are considered and an ability of new energy consumption is improved.

Description

technical field [0001] The present application relates to the technical field of power control, and more specifically, to a power generation control method and system based on power curtailment equalization. Background technique [0002] In recent years, new energy power generation based on wind power and photovoltaics has achieved rapid development. However, my country's energy distribution is uneven, and the speed of power grid construction lags far behind the speed of new energy installations. Large-scale centralized development of new energy cannot be fully absorbed by local loads, and needs to be transported outward through high-voltage transmission lines. When the power generated by new energy exceeds the stability limit of the transmission line, it is necessary to limit the power of new energy, that is, to abandon wind and light. [0003] Such as figure 1 Shown is a schematic diagram of the new energy in a region limited by the channel stability limit. When the new...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/38
CPCH02J3/46
Inventor 孙雅旻徐曼蓝海波吴林林刘辉翟丙旭闵睿徐海翔邓晓洋
Owner ELECTRIC POWER RES INST STATE GRID JIBEI ELECTRIC POWER COMPANY
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