Design and Analysis of High Availability Power Grid Dispatching Automation System Based on Virtualization Technology

2014 ◽  
Vol 852 ◽  
pp. 725-729
Author(s):  
Zhi Xiang Ji ◽  
Fang Сhun Di ◽  
Jing Huai Lin ◽  
Rong Сhang Yuan ◽  
Yun Рao Huang ◽  
...  
Keyword(s):  
Power Supply ◽  
Power Grid ◽  
High Availability ◽  
Failure Recovery ◽  
New Method ◽  
Utilization Rate ◽  
Automation System ◽  
Stable Operation ◽  
Virtualization Technology ◽  
Concrete Realization

The power grid dispatching automation system is the nerve center of the strong smart grid, and its safe and stable operation is the strong guarantee of power supply. Power grid dispatching automation system must have high availability and reliability to ensure the uninterrupted operation of system. This paper analyzed the application status of present power grid dispatching automation system and proposed a method based on virtualization technology to realize high availability. It also provided the architecture design of system and the concrete realization method of high availability. With the comparison of new method and existing system, it could be found that new method not only has high availability and fast failure recovery function, but also could greatly increase resource utilization rate of physical machine cluster. Therefore, it can better satisfy the high availability request of power grid dispatching automation system.

The Design and Implementation of Virtualization Technology Application on Power Grid Dispatching Automation System

2013 ◽  
Vol 816-817 ◽  
pp. 915-919 ◽  
Author(s):  
Zhi Xiang Ji ◽  
Li Xin Li ◽  
Rong Chang Yuan ◽  
Yan Huang ◽  
Fang Chun Di ◽  
...  
Keyword(s):  
Program Implementation ◽  
Power Grid ◽  
Utilization Rate ◽  
Automation System ◽  
Stable Operation ◽  
Virtual Technology ◽  
Technology Application ◽  
High Resource ◽  
Depth Analysis ◽  
Virtualization Technology

The power grid dispatching automation system is the nerve center of the strong smart grid, and its safe and stable operation is the strong guarantee of power supply. To make efficiently use of computing resources, improve the availability and flexibility of power grid dispatching automation system, this paper proposes to apply the virtualization technology to the power grid dispatching automation system to make it provide the required resources such as computing, storage and network. Through in-depth analysis of the current situation of power grid dispatching automation system and virtualization technology, this paper indicates that the virtualization technology is suitable for application in power grid dispatching automation system. Using the virtualization technology, the virtual resource pool is built; Base on the pool the grid dispatching automation system architecture is given. Then through the deployment of system hardware design, program implementation and advantage analysis, the power grid dispatching automation system based on virtual technology is built. Results show that the power grid dispatching automation system based on virtualization technology has the advantages of high availability, high resource utilization rate, load balancing and easy to scale.

scholarly journals Design and implementation of feeder automation

2018 ◽  
Vol 175 ◽  
pp. 03021
Author(s):  
Liu Penghou
Keyword(s):  
Power Supply ◽  
Power Distribution ◽  
Power Grid ◽  
Operation Mode ◽  
Modern Society ◽  
Automation System ◽  
Stable Operation ◽  
Feeder Automation ◽  
Smart Power ◽  
Design And Implementation

With the development of national economy, the demand for electricity from all walks of life has been gradually increased. People also put forward higher requests to the reliability of power supply. Feeder automation can quickly cut off the faulty line to ensure the safe and stable operation of the line. Under the sustainable development of modern society, people attach a great importance to all aspects of smart power grid construction, which is also significant for the smart grid distribution work. To ensure the reliable and high-quality power supply environment, the scientific and reasonable design and planning of power distribution automation system shall pay attention to arranging power distribution, and the appropriate feeder automation operation mode shall be selected. Only in this way can we ensure that the power outage is short once a fault happening in power grid system. At the same time, the line loss rate can be reduced, the efficiency of power supply can be raised, and issues in power equipment investment can be effectively treated. This paper mainly discusses the design and implementation of feeder automation, puts forward some practical application measures, and provides reference for the stable operation of feeder automation.

scholarly journals Research on power system scheduling method based on cross-platform sharing

2021 ◽  
Vol 2087 (1) ◽  
pp. 012083
Author(s):  
FengKai Lin ◽  
YanRong Li ◽  
YaWei Liu ◽  
LingXiao Chen
Keyword(s):  
Power System ◽  
Large Scale ◽  
Power Grid ◽  
Wide Distribution ◽  
Automation System ◽  
Stable Operation ◽  
Depth Study ◽  
Large Complex System ◽  
Key Issues ◽  
Cross Platform

Abstract As a large, complex system with wide distribution and high real-time, the safe, stable and reliable operation of the power system is inseparable from the power automation system. In this paper, an in-depth study is conducted on the key issues of this solution in the process of software cross-platform integration around the EPRI graphic center method, combined with the power data interface standard. The dispatch center graphics system and the dispatch center power graphics application method are discussed in detail in the paper. In addition, the paper also explains the online calibration system for relay protection ratings with smart grid dispatching technology support system. The methods and sample systems in this paper have been practically applied in large scale power grid dispatching centers, providing a reliable guarantee for the safe and stable operation of the power grid.

scholarly journals Construction Method of a Guaranteed Grid Considering the Specific Recovery Process

2020 ◽  
Vol 12 (9) ◽  
pp. 3935
Author(s):  
Shengfeng Zhang ◽  
Jie Zhao ◽  
Yixuan Weng ◽  
Dichen Liu ◽  
Weizhe Ma ◽  
...  
Keyword(s):  
Success Rate ◽  
Power Supply ◽  
Recovery Time ◽  
Power Grid ◽  
Recovery Process ◽  
Failure Recovery ◽  
Grid Structure ◽  
Power Failure ◽  
Recovery Index ◽  
Supply Capacity

For the planning of the guaranteed power grid, only the operation capacity of the target grid is considered. The recovery process and steps of the backbone grid are not considered enough, which leads to two defects: the minimum guaranteed power grid is not conducive to the unit recovery and the recovery time is too long. In this paper, a method of constructing the grid with the specific recovery process is proposed. Considering the influence of the grid structure and the position of the black start power supply on the recovery steps, the recovery success rate and the recovery time of the grid, the optimization of the grid structure of the guaranteed grid can meet the demand of power supply and at the same time make the recovery of the target grid less time-consuming and achieve a higher recovery success rate in the event of a blackout. In this method, two aspects are considered: the power failure recovery scenario in the recovery process of the target grid and the normal power supply scenario, reflecting the power supply performance after the recovery of the target grid. In the normal power supply scenario, a three-objective optimization model including power supply capacity, smooth transmission and safety margin is constructed, with power supply capacity and safe operation as constraints. In the scenario of power failure recovery, the process of power grid recovery and the mechanism affecting the success of recovery are analyzed to form the line recovery index. The Dijkstra algorithm is used to search for the optimal recovery path and calculate the recovery index, so as to reoptimize the backbone power grid. The validity of the method is verified by standard and practical examples.

scholarly journals Classification and Identification of Power Quality Disturbances Based on Stochastic Forest Model

2021 ◽  
pp. 383-391
Author(s):  
Xin Feng
Keyword(s):  
Random Forest ◽  
Power Quality ◽  
Power Supply ◽  
Power Grid ◽  
Stable Operation ◽  
Forest Model ◽  
Identification Method ◽  
Power Quality Disturbance ◽  
Power Quality Disturbances

With the emergence and use of a large number of new power electronic equipment, the power supply department has begun to pay extensive attention to the problem of power quality, and the majority of users have put forward higher requirements for the quality of power supply. This paper studies the classification and identification method of power quality disturbances based on random forest model. In this paper, according to IEEE power quality standard, the normal waveform and 16 common power quality disturbance waveforms are mathematically modeled, and the power quality disturbance signal is analyzed by S-transform. In this paper, the power quality disturbance identification algorithm based on random forest is optimized. Experimental data show that the optimized method has higher disturbance recognition accuracy and better anti noise ability. Therefore, using the power quality disturbance identification method proposed in this paper to monitor the power quality of power grid is of great significance to ensure the safe and stable operation of power grid and improve economic benefits.

Influence of distributed power supply in distributed power distribution network

2021 ◽  
pp. 1-8
Author(s):  
Xin Shen ◽  
Hongchun Shu ◽  
Min Cao ◽  
Nan Pan ◽  
Junbin Qian
Keyword(s):  
Power Supply ◽  
Power Distribution ◽  
Short Circuit ◽  
Power Grid ◽  
Distribution Network ◽  
Distribution Networks ◽  
Power Supplies ◽  
Power Distribution Network ◽  
Power Sources ◽  
Distributed Power

In distribution networks with distributed power supplies, distributed power supplies can also be used as backup power sources to support the grid. If a distribution network contains multiple distributed power sources, the distribution network becomes a complex power grid with multiple power supplies. When a short-circuit fault occurs at a certain point on the power distribution network, the size, direction and duration of the short-circuit current are no longer single due to the existence of distributed power, and will vary with the location and capacity of the distributed power supply system. The change, in turn, affects the current in the grid, resulting in the generation and propagation of additional current. This power grid of power electronics will cause problems such as excessive standard mis-operation, abnormal heating of the converter and component burnout, and communication system failure. It is of great and practical significance to study the influence of distributed power in distributed power distribution networks.

Coal-Conveying Control System for the Pressure of Coal Waste Heat Power Generation Based on PLC

2013 ◽  
Vol 336-338 ◽  
pp. 681-685
Author(s):  
Li Jun Zhao ◽  
Ying Feng Chen
Keyword(s):  
Control System ◽  
Waste Heat ◽  
Computer Control ◽  
System Structure ◽  
Utilization Rate ◽  
Coal Waste ◽  
Stable Operation ◽  
Efficient Operation ◽  
Actual Operation ◽  
One Year

This paper constructs a coal-conveying control system based on programmable logic controller (PLC), which is applied to the residual heat and pressure integrated energy-saving technological transformation projects, and realizes the performance of security, reliable and efficient operation. This control system consists of the PLC control system, computer control system and industrial television monitoring system. After more than one year of actual operation shows that the system structure is reasonable, reliable operation, at the same time, reduce labor intensity, improve the utilization rate of equipment, the stable operation also provides a practical reference for other similar projects.

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 Development and simulation of the Institute of ionosphere measuring complex energy consumption

2020 ◽  
Vol 2 (58) ◽  
pp. 28-32
Author(s):  
A. Gapon ◽  
O. Grib ◽  
S. Kozlov ◽  
O. Yevseienko ◽  
O. Levon
Keyword(s):  
Energy Consumption ◽  
Power Supply ◽  
Power Supply System ◽  
Reactive Power ◽  
Supply System ◽  
Stable Operation ◽  
Ministry Of Education ◽  
National Academy Of Sciences ◽  
Measuring Complex ◽  
Consumption System

The work is devoted to solving an urgent problem - the development of a computer model of the energy consumption system of the Institute of the ionosphere of the National Academy of Sciences and the Ministry of Education and Science of Ukraine in order to solve the problem of increasing the energy efficiency of the measuring complex. The power supply system of the complex is described, a generalized structural diagram of the loads - powerful consumers of electricity is presented. The graphs characterizing the energy consumption of individual powerful loads are presented, the problem of compensating the reactive power of loads is shown. The adequacy of the developed model is confirmed by the coincidence of the shape and values of the experimentally obtained characteristics on loads with the characteristics of the model. The model adequacy was assessed by the variance of feedback deviations from the system mean. The results obtained confirmed the possibility of using the developed Matlab-model of the energy consumption system of the measuring complex for creating and testing on the model of an energy-efficient power supply system, which will ensure the stable operation of scientific equipment for the implementation of research programs of the NAS of Ukraine.

scholarly journals Stable Operation of High-Power Ultrasonic Power Supply for Fuel Improvement

1980 ◽  
Vol 15 (12) ◽  
pp. 915-922
Author(s):  
Yoshihiro Hatanaka ◽  
Mutsuo Nakaoka ◽  
Toru Maruhashi ◽  
Masataro Nishimura
Keyword(s):  
High Power ◽  
Power Supply ◽  
Stable Operation ◽  
Ultrasonic Power ◽  
Power Ultrasonic
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