scholarly journals Summary of Research on Quality Control Technology of Secondary Equipment Maintenance in Smart substation

Author(s):  
Meizi Hong ◽  
Hengxuan Li ◽  
Yongjun Xia ◽  
Zuowei Wang ◽  
Zhen’an Du ◽  
...  
Author(s):  
S. Yin ◽  
H. T. Zhao ◽  
C. X. Chen ◽  
B. Q. Yao ◽  
J. Zhou

Abstract. The process quality inspection of geographic national conditions monitoring is an important means of quality control, and it is essential to improve the effectiveness of its role. Starting from the influencing factors and inspection methods of process quality control, the key points are designed and the content of process quality control is proposed. Based on this, combined with the practical application in the 2016–2020 geographic national conditions monitoring project, the problems existing in the geographic national conditions monitoring process are summarized and analysed.


2021 ◽  
Vol 2108 (1) ◽  
pp. 012077
Author(s):  
Yinfeng Zhang ◽  
Ying Shao ◽  
Kang Lei ◽  
Kongxian Wang

Abstract With the wide application of new energy and distributed generation system, high-performance inverter plays an important role as the key link of power system access. Its performance determines the quality of output power. Therefore, the output power quality control technology of three-phase inverter has become one of the important research directions in this field. This paper introduces the current main inverter power quality control methods, summarizes and compares the advantages and disadvantages of a single control method, and points out that the composite control method is the development trend of inverter output power quality control technology.


2020 ◽  
Vol 245 ◽  
pp. 547-553
Author(s):  
Ruslan Rakhmanov ◽  
Jeef Loeb ◽  
Nickolay Kosukhin

Measurement of ore movements by blast is one of the key components of the quality control system at any mining enterprise, which allows to obtain the accuracy necessary for determining the location of ore contours. About 15 years ago, a monitoring system was developed in Australia that allows mine personnel to make three-dimensional measurements of ore blocks movement at each blast. Studies have shown that ore blocks movement is extremely variable, and it characterized by a complete absence of a deterministic component. The consequence is that modeling ore contour movements during the blast will be inaccurate, and the best results for the mining enterprise can only be achieved by directly measuring the movement. The technology of measuring ore contours movements considered in the article is based on three-dimensional movement vectors obtained in different parts of the blasted block, characterized by different movements. It is obvious that the accuracy of determining the ore contours position after the blast is proportional to the number of measurements made on the block. Currently, the movement control technology based on the BMM system is actively used by global mining companies, its use reduces losses and dilution of ore. In 2017, the pilot implementation of the BMM system was started at the Olympiadinsky GOK, and the system is being implemented in several Russian mining companies.


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