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Online development method and system for load recovery strategy considering transient and static constraints

A technology of load recovery and strategy, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as difficult to meet the requirements of fast load recovery

Active Publication Date: 2019-04-16
NARI TECH CO LTD +2
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Problems solved by technology

[0004] The present invention provides an online formulating method and system of load restoration strategy considering transient state and static constraints, which solves the problem that the traditional manual judgment method is difficult to meet the requirements of fast load restoration

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  • Online development method and system for load recovery strategy considering transient and static constraints
  • Online development method and system for load recovery strategy considering transient and static constraints
  • Online development method and system for load recovery strategy considering transient and static constraints

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Embodiment Construction

[0078] 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.

[0079] Such as figure 1 As shown, the online formulation method of load restoration strategy considering transient and static constraints includes the following steps:

[0080] Step 1, take the converged grid operation section data flow as the initial operating state S of the grid 0 , to obtain load shedding action information, and generate a set of candidate measures C including generator adjustment measures, load adjustment measures, external network connection section adjustment measures, DC system adjustment measures, and reactive power compensation adjustment measures 0 .

[0081] Among them, generator adjustment measures are divided into new energy generator adjustment measures and conv...

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Abstract

The invention discloses an online development method for a load recovery strategy considering transient and static constraints. Firstly, based on the initial mode safety and stability assessment results, a load recovery strategy is optimized, and then the recovery strategy is corrected based on the optimized and stable safety assessment results. The corresponding system is also disclosed. The method and system can perform online development of a load recovery strategy considering transient and static constraints, give a control strategy with a smaller economic cost, larger load recovery amountand faster load recovery speed under the premise of ensuring the security and stability of the power grid, and meet the requirements of load recovery control for economy, timeliness and safety in thelate stage of UHV DC fault handling.

Description

technical field [0001] The invention relates to an online formulation method and system of a load restoration strategy considering transient state and static constraints, and belongs to the technical field of electric power system automation. Background technique [0002] In response to the large impact of the UHV DC fault on the receiving power grid, Jiangsu Power Grid proposed the idea of ​​building a "large-scale source-grid-load friendly interactive system". The system adopts two load control measures with different time limits to achieve two major Function. One is the system protection fast load shedding function, implementing the first time limit control. In response to frequency emergency control requirements, set up southern Jiangsu and northern Jiangsu load shedding control center stations, interconnected with the frequency emergency coordination control system of East China power grid, and quickly remove some interruptible loads. The second is the friendly intera...

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 张金龙鲍颜红刘韶峰仇晨光徐泰山李刚周海锋程锦闽徐伟严明辉任先成杨君军阮晶晶
Owner NARI TECH CO LTD
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