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Power-generation-and-transmission combined dynamic capacity-increase method and system thereof

A technology for dynamic capacity expansion, power generation and transmission

Pending Publication Date: 2017-06-20
BEIJING GUOWANG FUDA SCI & TECH DEV +1
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Problems solved by technology

[0003] At present, although the transmission capacity of the transmission line can be increased technically by using the dynamic capacity increase technology of the transmission line, since the capacity of the increased part will be affected by the environmental changes of the transmission line, from the perspective of power system operation, it is necessary to consider the loss of capacity of the transmission channel. Part of the risk, to avoid the impact on the safe operation of the power grid and the output of power generation companies due to the fluctuation of the increased transmission capacity, so the dynamic capacity increase technology of transmission lines has not yet been practical at this stage

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Embodiment Construction

[0042] 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.

[0043] figure 1 It is a schematic flowchart of a method for dynamic capacity increase of combined power generation and transmission according to an embodiment of the present invention. Such as figure 1 As shown, the combined dynamic capacity increase method of power generation and transmission includes the following steps:

[0044] Step 1. Obtain in real time the temperature of the wires at each monitoring point on the transmission line and the meteorologica...

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Abstract

The invention provides a power-generation-and-transmission combined dynamic capacity-increase method and a system thereof. The method comprises the following steps of acquiring a lead temperature of each monitoring point on a power transmission line and meteorological data of a circumference environment of each monitoring point in real time, and acquiring operation data of a power-plant sending out line and a lead current of the power transmission line; according to the meteorological data, a maximum allowable temperature of a lead and a physical parameter of the lead, calculating a maximum allowable current-carrying capacity of the lead of each monitoring point; according to a scheduling value which is sent to the power plant by a provincial dispatching system, the maximum allowable current-carrying capacity of the lead of each monitoring point and the operation data of the power-plant sending out line, generating a capacity-increase instruction or a non-capacity-increase instruction so as to control output power of a generator set.

Description

technical field [0001] The invention relates to the technical field of dynamic capacity expansion of transmission lines and automatic protection of power plants, in particular to a dynamic capacity expansion method and system for combined power generation and transmission. Background technique [0002] Conflicts and games among power supply construction, power grid planning, and regulatory policies often result in blocked power delivery channels. Especially after 2011, due to the improvement of the government's requirements on the reliability of power supply, the transmission capacity of power generation companies has been further restricted, resulting in a large number of nested electricity phenomena. [0003] At present, although the transmission capacity of the transmission line can be increased technically by using the dynamic capacity increase technology of the transmission line, since the capacity of the increased part will be affected by the environmental changes of t...

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Application Information

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IPC IPC(8): H02J3/46
CPCH02J3/003H02J3/46
Inventor 张锡根宣东海张永喜王维珍王善霞于钦刚李红云赵文彬何卫锋马琳周傅峻顾范华吴小川
Owner BEIJING GUOWANG FUDA SCI & TECH DEV
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