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Static hybrid automatic voltage control method

An automatic voltage and control method technology, applied in the direction of AC network voltage adjustment, electrical components, circuit devices, etc., can solve the problem of inability to realize comprehensive control of voltage quality, voltage stability and safety, lack of control means and control in power plants The optimization target is not comprehensive enough to achieve significant economic and social benefits and ensure voltage safety

Active Publication Date: 2007-10-24
TSINGHUA UNIV
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  • Abstract
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Problems solved by technology

[0011] The characteristics of the above-mentioned invention patents are that the voltage control object is limited to the transformer and capacitive reactor of the substation, and there is no control method for the power plant, so the application scope is limited to the small regional power grid, not suitable for the large regional power grid or provincial power grid; and the control optimization target Not comprehensive enough to realize effective comprehensive control of voltage level, voltage quality and voltage stability and safety, and reactive power optimization power flow

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Embodiment Construction

[0035] Refer to FIG. 1 for the schematic diagram of the static hybrid automatic voltage control system of the power system proposed by the present invention, and the process flow of the method is shown in FIG. 2 .

[0036] Features proposed by the present invention include:

[0037] 1. The present invention introduces the concept and technology of hybrid control, realizes the static automatic voltage control of the power system, and can automatically calculate and regulate through the computer to realize the automatic coordination and optimization control of the system voltage, thereby ensuring the voltage quality and improving the system voltage. stability and reduce network loss.

[0038] The invention comprises the following steps:

[0039] (1.1) In the offline state, the indicators of the power system related to voltage quality, voltage safety, and economic operation are given:

[0040] (1.1.1) The static voltage minimum safety index λ of the power system min ref [k]; ...

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Abstract

The disclosed invention refers to the reactive auto-control field of power network voltage and comprises: a static mixed automatic voltage-control intermediate layer negotiation computer adjusts the control command for regulation computer according to the top economic and security, and sends the exact command to the intermediate generator assembly, reactive compensator regulation computer and the on-load voltage-adjust transformer regulation computer; and the last two regulation computers send control command to the static mixed control intermediate layer. This invention can ensure safe, stable and economic running of the power system.

Description

technical field [0001] The technical invention belongs to the automatic control method of voltage and reactive power in large-scale regional power grids, provincial power grids and regional power grids of power systems. Background technique [0002] The development of the power system has prompted people to make continuous efforts to improve the security and stability of the power system, especially the emergence of the power market has put forward higher requirements for the stability of the power system, and has brought new challenges to the safe and stable operation of the power system. features. Generally, power plants are far away from the load center, but due to factors such as economics and environmental protection, on the one hand, the development of some power networks cannot keep up with the needs of the rapid growth of power loads, making some transmission lines in a state of heavy load or overload operation; on the other hand On the one hand, the implementation ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/12H02J3/16H02J3/38H02J3/46
CPCY02E40/34Y02E40/30
Inventor 黄其励王钢卢强胡伟梅生伟张雪敏贾伟
Owner TSINGHUA UNIV