A Comparing Study on Voltage Support Ability between STATCOM and Generator

2014 ◽  
Vol 1077 ◽  
pp. 160-165
Author(s):  
Yin Guo Yang ◽  
Zhi Chang Yuan ◽  
Rui Chen ◽  
Jian Xi Lin ◽  
Wei Tan
Keyword(s):  
Reactive Power ◽  
Power Grid ◽  
Synchronous Generator ◽  
Voltage Collapse ◽  
Regional Power ◽  
Terminal Voltage ◽  
Digital Simulations ◽  
Voltage Support ◽  
Grid Based

STATCOM and synchronous generator are considered as measures of providing dynamic reactive power to power grid. Based on a real regional power grid, ability of voltage support between STATCOM and generator are compared through digital simulations. The results shows that STATCOM always provides additional reactive power to persist voltage collapse, while ability of generator reactive power are restricted by terminal voltage under faults.

Reactive Power Optimization Analysis of 35KV Regional Power Grid Based on the Genetic Algorithm

2014 ◽  
Vol 1055 ◽  
pp. 271-274 ◽  
Author(s):  
Pei Huang
Keyword(s):  
Genetic Algorithm ◽  
Reactive Power ◽  
Power Grid ◽  
Operational Mode ◽  
Reactive Power Optimization ◽  
Regional Power ◽  
Optimization Analysis ◽  
The Difference ◽  
Low Efficiency ◽  
Grid Based

As we know, the load of power grid keeps increasing in recent years, and the difference of power pink and trough is large. This situation causes the low efficiency of power consuming. In this paper, the integer coded genetic algorithm is used to carry on the reactive optimization of 35KV power gird, which includes operations of genetic algorithm, such as coding, selecting, crossing, and mutating. The genetic algorithm is illustrated in IEEE30 points system and the optimization of maximum operational mode, the results show that this method decreases the loss and ensure the qualified rate of voltages, realizing the optimization of the power gird.

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.

scholarly journals Reactive Power Optimization of Power Grid based on TTGA Hybrid Algorithm

2020 ◽  
Vol 1659 ◽  
pp. 012036
Author(s):  
Lei Sun ◽  
Feng Jing ◽  
Fan Sun ◽  
Hongyan Guo ◽  
Dengyu Xiong ◽  
...  
Keyword(s):  
Hybrid Algorithm ◽  
Reactive Power ◽  
Power Optimization ◽  
Power Grid ◽  
Reactive Power Optimization ◽  
Grid Based

Optimization of Voltage and Reactive Power in Regional Power Network Based on MCR

2014 ◽  
Vol 986-987 ◽  
pp. 394-399
Author(s):  
Xue Yong Xu ◽  
Pan Zhou ◽  
Qi Zhe Huang ◽  
Chun Ming Deng ◽  
Meng Meng Shi ◽  
...  
Keyword(s):  
Reactive Power ◽  
Power Transmission ◽  
Power Grid ◽  
Magnetic Control ◽  
Power Network ◽  
Regional Power ◽  
Immune Genetic Algorithm ◽  
Power Sources ◽  
Power Resources ◽  
Hierarchical Partition

Along with the increasing use of cables in power grid and the increasing ration of distributed power sources’ synchronization, such as small hydropower’s synchronization, increasing the reactive power transmission on the line, make it difficult to achieve the balance of reactive hierarchical partition. Take a certain region’s power grid for actual examples, after the installation of magnetic control reactor (MCR), using immune genetic algorithm (IGA) to coordinate the capacity of magnetic control reactor and the existing reactive power resources, the results show that the magnetic control reactor does much good to absorb the system’s excessive reactive power and limit the voltage’s increasing.

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