Distribution network voltage regulation-based regional network load interaction active power control method

A technology of active power and control method, applied in the direction of AC network voltage adjustment, power network operating system integration, single AC network with different frequencies, etc., can solve the problem that the controllable load potential has not been fully tapped, and achieve rapid load reduction Active power, effect of auxiliary frequency

Inactive Publication Date: 2017-05-24
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although there are means for load control, but the method of interrupting the interruptible load is adopted. When implementing the control, the interruptible load needs to be cut off, and the potential of the controllable load has not been fully tapped.

Method used

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  • Distribution network voltage regulation-based regional network load interaction active power control method
  • Distribution network voltage regulation-based regional network load interaction active power control method
  • Distribution network voltage regulation-based regional network load interaction active power control method

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0022] A regional network-load interactive active power control method based on distribution network voltage regulation. When the frequency instability of the power grid occurs and active power control of the distribution network is required, the distribution network side voltage is adjusted through a comprehensive voltage regulation method within the range of qualified voltage limits. , adjust the active load on the distribution network side, and provide power support for the grid.

[0023] According to the mathematical principle of the static voltage characteristics of the distribution network load and the requirements of the national standard / enterprise standard for the distribution network v...

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Abstract

The invention discloses a distribution network voltage regulation-based regional network load interaction active power control method. A frequency instability occurs in a power grid and active power control of a distribution network is needed, voltage of a distribution network side is regulated and an active load of the distribution network side is regulated through a comprehensive voltage regulation method within a qualified limit value range of the voltage to provide the power grid with a power support. The frequency instability is caused by a high power loss of the power grid, the active power of the load can be quickly reduced, the power grid is provided with an emergency power support and the power grid is assisted in fast frequency recovery.

Description

technical field [0001] The invention relates to a regional grid-load interactive active power control method based on distribution network voltage regulation, which belongs to the field of power system safety control. Background technique [0002] The construction of the Global Energy Internet aims to promote the meeting of global electricity demand in a clean and green way. With the continuous expansion of the power grid scale and the increasing power load, a new energy pattern dominated by clean energy and centered on electricity has gradually formed, and the regional power grid has accelerated into an era of UHV, large power grids, and high proportions of clean energy. For the large receiving-end power grid characterized by UHV AC-DC hybrid connection, the equivalent inertia and stable regulation ability of the generators in the area are greatly reduced, and the AC-DC power grid is prone to cascading failures; once a DC blocking fault occurs, Frequency stability issues w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/14H02J3/02
CPCY02B70/3225Y04S20/222H02J3/14H02J3/02
Inventor 李虎成
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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