In order to take into account the computing efficiency and flexibility of calculating transcendental functions, this paper proposes one kind of reconfigurable transcendental function generator. The generator is of a r...In order to take into account the computing efficiency and flexibility of calculating transcendental functions, this paper proposes one kind of reconfigurable transcendental function generator. The generator is of a reconfigurable array structure composed of 30 processing elements （PEs）. The coordinate rotational digital computer （CORDIC） algorithm is implemented on this structure. Different functions, such as sine, cosine, inverse tangent, logarithmic, etc., can be calculated based on the structure by reconfiguring the functions of PEs. The functional simulation and field programmable gate array （FPGA） verification show that the proposed method obtains great flexibility with acceptable performance.展开更多
With the development of science and technology, intelligent technology is widely used, and intelligent traction substation is the future development trend. After the design and construction of traction substation, bef...With the development of science and technology, intelligent technology is widely used, and intelligent traction substation is the future development trend. After the design and construction of traction substation, before the whole substation is put into operation, it is necessary to complete the overall performance test at the substation site, so as to ensure the stability and safety of the whole traction substation meet the requirements. However, the protection test of intelligent traction substation is different from that of traditional traction substation. This paper mainly studies the test contents, testing instruments and equipment to be used, and the test flow method of intelligent traction substation protection test, and focuses on the analysis and verification of the wide-area measurement and control protection system test.展开更多
基金supported by the National Natural Science Foundation of China(61272120,61602377,61634004)the Natural Science Foundation of Shaanxi Province of China(2015JM6326)+1 种基金Shaanxi Provincial Co-ordination Innovation Project of Science and Technology(2016KTZDGY02-04-02)the Project of Education Department of Shaanxi Provincial Government(15JK1683)
文摘In order to take into account the computing efficiency and flexibility of calculating transcendental functions, this paper proposes one kind of reconfigurable transcendental function generator. The generator is of a reconfigurable array structure composed of 30 processing elements （PEs）. The coordinate rotational digital computer （CORDIC） algorithm is implemented on this structure. Different functions, such as sine, cosine, inverse tangent, logarithmic, etc., can be calculated based on the structure by reconfiguring the functions of PEs. The functional simulation and field programmable gate array （FPGA） verification show that the proposed method obtains great flexibility with acceptable performance.
文摘With the development of science and technology, intelligent technology is widely used, and intelligent traction substation is the future development trend. After the design and construction of traction substation, before the whole substation is put into operation, it is necessary to complete the overall performance test at the substation site, so as to ensure the stability and safety of the whole traction substation meet the requirements. However, the protection test of intelligent traction substation is different from that of traditional traction substation. This paper mainly studies the test contents, testing instruments and equipment to be used, and the test flow method of intelligent traction substation protection test, and focuses on the analysis and verification of the wide-area measurement and control protection system test.
