Zobrazeno 1 - 10
of 30
pro vyhledávání: '"I. V. Novash"'
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 67, Iss 2, Pp 115-124 (2024)
A technique is proposed for the formation of emergency components of current and voltage of a power transmission line by a computational experiment in the MATLAB-Simulink dynamic simulating system (DSS) in order to use them as input information signa
Externí odkaz:
https://doaj.org/article/9f9501fe60ee45a79a2792e86cc68bc7
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 65, Iss 3, Pp 197-208 (2022)
In microprocessor protections of electric power systems, the controlled information parameters of input signals are determined using their orthogonal components. To form these components, digital Fourier filters which have inertia are most widely use
Externí odkaz:
https://doaj.org/article/af0cf8e81a034aa9bfdbe58129e60bb8
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 64, Iss 3, Pp 191-201 (2021)
The methods used in the microprocessor protection of electrical equipment for forming orthogonal components of input currents ensure their reliable isolation after changing the mode followed by one or more periods of the fundamental frequency. This i
Externí odkaz:
https://doaj.org/article/deaa611c343343408eb056e5bb76afba
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 64, Iss 2, Pp 95-108 (2021)
The use of orthogonal components (OC) underlies the construction of measuring elements of modern protection and automation devices. In most microprocessor-based protections, the orthogonal component of the input signal is extracted using a discrete F
Externí odkaz:
https://doaj.org/article/44d6c0945a7047cd9c2c9193f5d47327
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 61, Iss 6, Pp 483-493 (2018)
The development and implementation of a digital current measurement element for proper operation during current transformer (CT) magnetic core severe saturation are considered. CT transient performance is often accompanied by primary current transfor
Externí odkaz:
https://doaj.org/article/d0bbf467624447f990f2f3553542827d
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 60, Iss 4, Pp 291-308 (2017)
The implementation of information support for PC-based and hardware-software based sets for digital overcurrent protection devices and their models testing using MatLab-Simulink environment is considered. It is demonstrated that the mathematical mode
Externí odkaz:
https://doaj.org/article/98094ded0d644a85b11b76d7df032a28
Autor:
I. V. Novash
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 60, Iss 3, Pp 198-210 (2017)
The methods of modelling of power system modes and of testing of relay protection devices with the aid the simulation complexes in real time and with the help of computer software systems that enables the simulation of virtual time scale are consider
Externí odkaz:
https://doaj.org/article/893fd2b503bd418e9292a5aa9f849084
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 59, Iss 5, Pp 397-417 (2016)
This article presents the implementation of digital filters used in digital relay protection current measuring elements. Mathematical descriptions of the considered digital filters as well as the computer programs for their coefficients calculation a
Externí odkaz:
https://doaj.org/article/74276269ddf949c3b17ccdd30027d972
Autor:
I. V. Novash, Yu. V. Rumiantsev
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 0, Iss 5, Pp 23-38 (2015)
The article presents and substantiates a simplified mathematical simulation model realization technique for a three-phase bank of current transformers (CT) based on their nameplate data. The secondary windings and load of the current transformers for
Externí odkaz:
https://doaj.org/article/627d3c8706d54167b311f87876897992
Autor:
I. V. Novash, Yu. V. Rumiantsev
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 0, Iss 1, Pp 12-24 (2015)
This article describes the parameters calculation for the three-phase two-winding power transformer model taken from the SimPowerSystems library, which is the part of the MatLab- Simulink environment. Presented methodology is based on the power trans
Externí odkaz:
https://doaj.org/article/21d633ce1cd34f7e88085b0460d03769