At present, most of the problems existing in the operation and maintenance of power grid are related to power grid automation technology. If there are problems in the application of distribution automation technology,...At present, most of the problems existing in the operation and maintenance of power grid are related to power grid automation technology. If there are problems in the application of distribution automation technology, on the one hand, it will reduce the reliability of power grid, on the other hand, it will reduce the rapidity of power distribution. It can be seen that the distribution automation technology is very important for the normal operation and maintenance of power grid, and the relevant key in the application of distribution automation technology needs in-depth analysis and research.展开更多
During the operation of the distribution network, some faults are easy to occur, which is unfavorable to the normal operation of the distribution network to a large extent. This requires the application of operation a...During the operation of the distribution network, some faults are easy to occur, which is unfavorable to the normal operation of the distribution network to a large extent. This requires the application of operation and maintenance to improve the operation quality of the distribution network. In addition, during the period of improvement, the distribution network operation and maintenance learning system is able to fully grasp the equipment operation status, and effectively strengthen the basic distribution network management and emergency repair management during this period, thus realizing the full-cycle management, which avoids the occurrence of potential safety hazards during the operation to a greater extent, and greatly improves the safety and reliability of the distribution network operation.展开更多
The safety management of distribution network in the operation process is of great significance to ensure the stability of the whole power system. Combined with maintenance strategies and application requirements, com...The safety management of distribution network in the operation process is of great significance to ensure the stability of the whole power system. Combined with maintenance strategies and application requirements, comprehensive management efficiency should be maintained, grid failure rate should be reduced, and timeliness of comprehensive supervision of chemical distribution network maintenance should be improved. In the process of application of network operation and management technology, effective technological transformation must be strengthened, problems among different components should be analyzed flexibly, and optimization of the whole system should be strengthened in order to further realize stable operation of the distribution network.展开更多
With the improvement of intelligence level, the application of distribution automation has got better configuration support, and its compatibility has also been greatly improved. The construction of intelligent power ...With the improvement of intelligence level, the application of distribution automation has got better configuration support, and its compatibility has also been greatly improved. The construction of intelligent power distribution system also provides a platform for scientific operation and maintenance management, which helps property managers to understand the system framework and the purpose of collecting information, realize the interconnection of all links of power monitoring system, fully perceive the system status and efficiently handle emergencies.展开更多
Transmission and distribution lines are important components of power system and the basis of power transportation. Therefore, in order to ensure the stability and business safety of transportation and distribution li...Transmission and distribution lines are important components of power system and the basis of power transportation. Therefore, in order to ensure the stability and business safety of transportation and distribution lines, relevant departments must maintain the corresponding transportation and distribution lines. The stability of each line affects the normal operation of the power system. The safety and operation of transportation and distribution lines are the main guarantee for the normal operation of the whole line. On this basis, this paper first briefly analyzes the importance of the safety level of transmission and distribution lines, and then discusses the measures to optimize the safety level of transmission and distribution lines, so as to provide reference for relevant personnel.展开更多
With the rapid development of society, the demand for power consumption is also growing synchronously. Therefore, the power load pressure faced by the power system is increasing, which tests the operation capacity of ...With the rapid development of society, the demand for power consumption is also growing synchronously. Therefore, the power load pressure faced by the power system is increasing, which tests the operation capacity of the distribution network in the power grid. As an important part of distribution network, the operation stability of distribution network is very important. Facing the increasing pressure of power load, the problem of low voltage in distribution network is becoming more and more prominent. The scientific and effective solution and prevention of low voltage problems not only affect the operation stability of distribution network, but also have a direct impact on the operation safety of the whole power system. Based on this, this paper focuses on the analysis of the causes of low voltage in distribution network, and discusses the corresponding governance strategies, hoping to improve the operation stability of distribution network and ensure the power supply quality.展开更多
As a key application of smart grid technologies,the smart distribution network(SDN)is expected to have a high diversity of equipment and complexity of operation patterns.Situational awareness(SA),which aims to provide...As a key application of smart grid technologies,the smart distribution network(SDN)is expected to have a high diversity of equipment and complexity of operation patterns.Situational awareness(SA),which aims to provide a critical visibility of the SDN,will enable a significant assurance for stable SDN operations.However,the lack of systematic evaluation through the three stages of perception,comprehensive,and prediction may prevent the SA technique from effectively achieving the performance necessary to monitor and respond to events in SDN.To analyze the feasibility and effectiveness of the SA technique for the SDN,a comprehensive evaluation framework with specific performance indicators and systematic weighting methods is proposed in this paper.Besides,to implement the indicator framework while addressing the key issues of human expert scoring ambiguity and the lack of data in specific SDN areas,an improved interval-based analytic hierarchy process-based subjective weighting and a multi-objective programming method-based objective weighting are developed to evaluate the SDN SA performance.In addition,a case study in a real distribution network of Tianjin,China is conducted whose outcomes verify the practicality and effectiveness of the proposed SA technique for SDN operating security.展开更多
文摘At present, most of the problems existing in the operation and maintenance of power grid are related to power grid automation technology. If there are problems in the application of distribution automation technology, on the one hand, it will reduce the reliability of power grid, on the other hand, it will reduce the rapidity of power distribution. It can be seen that the distribution automation technology is very important for the normal operation and maintenance of power grid, and the relevant key in the application of distribution automation technology needs in-depth analysis and research.
文摘During the operation of the distribution network, some faults are easy to occur, which is unfavorable to the normal operation of the distribution network to a large extent. This requires the application of operation and maintenance to improve the operation quality of the distribution network. In addition, during the period of improvement, the distribution network operation and maintenance learning system is able to fully grasp the equipment operation status, and effectively strengthen the basic distribution network management and emergency repair management during this period, thus realizing the full-cycle management, which avoids the occurrence of potential safety hazards during the operation to a greater extent, and greatly improves the safety and reliability of the distribution network operation.
文摘The safety management of distribution network in the operation process is of great significance to ensure the stability of the whole power system. Combined with maintenance strategies and application requirements, comprehensive management efficiency should be maintained, grid failure rate should be reduced, and timeliness of comprehensive supervision of chemical distribution network maintenance should be improved. In the process of application of network operation and management technology, effective technological transformation must be strengthened, problems among different components should be analyzed flexibly, and optimization of the whole system should be strengthened in order to further realize stable operation of the distribution network.
文摘With the improvement of intelligence level, the application of distribution automation has got better configuration support, and its compatibility has also been greatly improved. The construction of intelligent power distribution system also provides a platform for scientific operation and maintenance management, which helps property managers to understand the system framework and the purpose of collecting information, realize the interconnection of all links of power monitoring system, fully perceive the system status and efficiently handle emergencies.
文摘Transmission and distribution lines are important components of power system and the basis of power transportation. Therefore, in order to ensure the stability and business safety of transportation and distribution lines, relevant departments must maintain the corresponding transportation and distribution lines. The stability of each line affects the normal operation of the power system. The safety and operation of transportation and distribution lines are the main guarantee for the normal operation of the whole line. On this basis, this paper first briefly analyzes the importance of the safety level of transmission and distribution lines, and then discusses the measures to optimize the safety level of transmission and distribution lines, so as to provide reference for relevant personnel.
文摘With the rapid development of society, the demand for power consumption is also growing synchronously. Therefore, the power load pressure faced by the power system is increasing, which tests the operation capacity of the distribution network in the power grid. As an important part of distribution network, the operation stability of distribution network is very important. Facing the increasing pressure of power load, the problem of low voltage in distribution network is becoming more and more prominent. The scientific and effective solution and prevention of low voltage problems not only affect the operation stability of distribution network, but also have a direct impact on the operation safety of the whole power system. Based on this, this paper focuses on the analysis of the causes of low voltage in distribution network, and discusses the corresponding governance strategies, hoping to improve the operation stability of distribution network and ensure the power supply quality.
基金This paper was supported by the National Natural Science Foundation of China(Grant No.51807134).
文摘As a key application of smart grid technologies,the smart distribution network(SDN)is expected to have a high diversity of equipment and complexity of operation patterns.Situational awareness(SA),which aims to provide a critical visibility of the SDN,will enable a significant assurance for stable SDN operations.However,the lack of systematic evaluation through the three stages of perception,comprehensive,and prediction may prevent the SA technique from effectively achieving the performance necessary to monitor and respond to events in SDN.To analyze the feasibility and effectiveness of the SA technique for the SDN,a comprehensive evaluation framework with specific performance indicators and systematic weighting methods is proposed in this paper.Besides,to implement the indicator framework while addressing the key issues of human expert scoring ambiguity and the lack of data in specific SDN areas,an improved interval-based analytic hierarchy process-based subjective weighting and a multi-objective programming method-based objective weighting are developed to evaluate the SDN SA performance.In addition,a case study in a real distribution network of Tianjin,China is conducted whose outcomes verify the practicality and effectiveness of the proposed SA technique for SDN operating security.
