Study on the Line Overload Harmonization and Optimization Control

2015 ◽  
Vol 740 ◽  
pp. 456-459
Author(s):  
Yang Guang Wang ◽  
Xiao Fang Guan ◽  
Lei Chen ◽  
Jing Zhong Wang ◽  
Wei Min Hu ◽  
...  
Keyword(s):  
Optimization Model ◽  
Power Grid ◽  
Reverse Phase ◽  
Emergency Control ◽  
Accident Probability ◽  
Optimization Control ◽  
Matching Adjustment ◽  
Line Overload ◽  
Influence Degree

The line overload is discussed and the coordination and optimization model of preventive and emergency control is proposed in this paper. It combines with the sensitivity’s concept and reverse phase equivalent matching adjustment principle, takes into account the severity of the accident probability and consequences, and introduces the important factor of the corresponding accident; adjust automatically according to the influence degree of the accident to the power grid. Getting reasonable coordination optimization strategies to ensure the safety and economy of the system is effective and verified by this paper.

scholarly journals Research on the Application of Artificial Intelligence Technology in Power System Intelligent Dispatching Automation

2021 ◽  
Vol 2083 (4) ◽  
pp. 042047
Author(s):  
Hongying Liu
Keyword(s):  
Real Time ◽  
Reactive Power ◽  
Power Grid ◽  
Control Mode ◽  
Particle Swarm Algorithm ◽  
Automation System ◽  
Regional Power ◽  
Time Optimization ◽  
Optimization Control ◽  
Real Time Optimization

Abstract From the perspective of meeting the power quality requirements of users, the article analyses the characteristics of traditional voltage and reactive power control mode and the regional power grid reactive voltage optimization centralized closed-loop control mode (AVC system) based on the dispatch automation system (SCADA/EMS) from the perspective of technical management. Combining the reactive power/voltage real-time optimization control model, a real-time optimization control method of the regional power grid based on the improved differential evolution algorithm is proposed. The particle swarm algorithm is combined with the characteristics of reactive power/voltage control to improve the initial particle quality, reduce the optimization space, and introduce a crossover operator to improve the calculation speed and efficiency of the algorithm. Taking an actual regional power grid as an example, the simulation calculation of reactive power/voltage real-time optimization is carried out. The results show that the proposed algorithm and control strategy are feasible and effective.

An optimization model for power grid fortification to maximize attack immunity

2018 ◽  
Vol 99 ◽  
pp. 594-602 ◽  
Author(s):  
Alberto Costa ◽  
Dionysios Georgiadis ◽  
Tsan Sheng Ng ◽  
Melvyn Sim
Keyword(s):  
Optimization Model ◽  
Power Grid

Application of Reactive Power Optimization in Power Grid in AVC

2014 ◽  
Vol 971-973 ◽  
pp. 979-982
Author(s):  
Yan Hong Li ◽  
Zhi Rong Zhang
Keyword(s):  
Optimization Model ◽  
Reactive Power ◽  
Power Optimization ◽  
Power Grid ◽  
Optimization Method ◽  
Reactive Power Optimization ◽  
Synchronous Generators ◽  
Hierarchical Partition ◽  
Operating Limits ◽  
External Conditions

Automatic voltage control(AVC) is the highest form of current power grid voltage and reactive power control,during the implementation of AVC, the whole network reactive power optimization isthe core and foundation. Thispaper researches and discuses the application of reactive power optimization inpower grid AVC. In the traditional reactive power optimization, the reactivepower limits of synchronous generators are fixed. In this paper, thesynchronous generator PQ operating limits change with external conditions,thus establishes reactive power optimization model in accordance with therequirements of AVC. Thispaper presents reactive power optimization method based on the principle ofpartition. The method decomposes the system to several partitions. Eachpartition separately optimized, thus reduces the system scale.And the convergence of the algorithm, the calculation speed and the discretevariable processing etc. improve. At the same time, this method reflects theclassification, hierarchical, partition, characteristics of coordinated controlof AVC.

scholarly journals Optimization Model of Emission Reduction Benefits Based on Integrated Development of Electric Vehicle and Power Grid

2021 ◽  
Author(s):  
Zhao Jia ◽  
Fang Haifeng ◽  
Zhu Yueyan ◽  
Li Yueke ◽  
Chen Yisong ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Carbon Emissions ◽  
Automobile Industry ◽  
Optimization Model ◽  
Emission Reduction ◽  
Large Scale ◽  
Power Grid ◽  
Storage Unit ◽  
Integrated Development ◽  
Power Load

Under the goal of carbon peak and carbon neutrality, the carbon emission reduction of the automobile industry has attracted more and more attention in recent years. Electric vehicle has the dual attributes of power load and energy storage unit. With the increase of the number of electric vehicles, reducing carbon emissions through the collaborative interaction between electric vehicle and power network will become an important way to control carbon emissions in the automotive field. In this study, an optimization model of emission reduction benefits based on integrated development of electric vehicle and power grid is proposed, which explores the best technical way of synergy between power grid and electric vehicle, achieves the best carbon reduction effect and provides a model basis for large-scale demonstration application. Numerical simulations based on the real case in Beijing are conducted to validate the effectiveness of the proposed method.

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