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Method for optimal configuration of voltage sag treatment equipment

A voltage sag and optimal configuration technology, applied in the power field, can solve the problem of complex selection of monitoring points for governance equipment

Pending Publication Date: 2020-04-28
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] For this reason, the embodiment of the present invention provides a method for optimal configuration of voltage sag control equipment to solve the problem of complex control equipment selection and monitoring point selection in the prior art

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  • Method for optimal configuration of voltage sag treatment equipment
  • Method for optimal configuration of voltage sag treatment equipment
  • Method for optimal configuration of voltage sag treatment equipment

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Embodiment Construction

[0061] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following 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.

[0062] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner" and "outer" are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing ...

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Abstract

The embodiment of the invention discloses a method for optimal configuration of voltage sag treatment equipment. The method comprises the following steps: step 100, establishing a system topology model and parameters; step 200, selecting a fault point and a fault type by using a type-2 fuzzy system in combination with a Monte Carlo simulation method; step 300, calculating the voltage deviation ofeach node caused by the fault according to the fault point and the fault type; and step 400, with the voltage sag governing equipment installation cost and voltage deviation as target functions and the voltage limit value and the equipment capacity limit as constraint conditions, selecting the optimal equipment by using a whale algorithm. According to the method, the type 2 fuzzy system is combined with the Monte Carlo simulation method to select the fault point and the fault type of the power distribution network; on the basis, the whale algorithm is used for carrying out optimal calculationon the cost and voltage offset of the voltage sag treatment equipment, the voltage sag treatment equipment with the lowest cost and a configuration scheme are obtained, and the lowest cost is achievedwhile the treatment effect is guaranteed.

Description

technical field [0001] The embodiments of the present invention relate to the field of electric power technology, and in particular to a method for optimal configuration of voltage sag control equipment. Background technique [0002] Voltage sag is one of the most concerned problems in power quality. The International Institute of Electrical and Electronics Engineers (IEEE) defines it as the rapid drop of the root mean square value of the supply voltage to 90% to 10% of the rated value for a duration of 0.5 Power quality events with cycles up to 30 cycles. In cities, such as hospitals, shopping malls, schools and other small and medium-sized power distribution areas where key users are concentrated, the economic loss of production caused by voltage sags is becoming more and more serious. [0003] Therefore, it is necessary to arrange appropriate voltage sag control equipment in these areas. The existing voltage sag equipment has a large gap between installation cost and mai...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06G06N3/00H02J3/12
CPCG06Q10/04G06Q50/06G06N3/006H02J3/12
Inventor 谢伟伦薛峰陈世昌陈欣晖
Owner GUANGDONG POWER GRID CO LTD
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