Methods for identification of telemetering random errors variances in electric power systems

Gamm, A.Z.; Grishin, Yu.A.; Glazunova, Anna; Kolosok, Irina

doi:10.1109/icpst.1998.729287

Cited by 3 publications

(2 citation statements)

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“…The ESI SB RAS has developed a method of control equations for detecting erroneous data and assessing the state of the EPS [16]. The method was developed to detect incorrect data in SCADA measurements, then adapted to verify WAMS measurements and analyze the cybersecurity of data collection and processing systems -SCADA and WAMS -belonging to the information and communication infrastructure of the Smart Grid [17][18].…”

Section: The Role Of the Se Problem In Providing The Cyber-physical S...mentioning

confidence: 99%

Application of the state estimation procedure to improve the cyber-physical stability of the smart grid

Kolosok,

Korkina,

Demidov

2023

E3S Web Conf.

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Current Smart Grids and their facilities acquire stable features of cyber-physical systems, the components of which are physical (technological) and information - communication subsystems. In a cyber-physical system, a failure in one subsystem can cause a failure in an other one, and combined emergency states can occur as a result, so there is a problem of ensuring the Smart Grid resilience to physical and information disturbances - the problem of cyber-physical stability (resilience). The report considers the issues of applying the State Estimation procedure to analyze and increase the resilience of Smart Grid and its facilities. It is shown that the State Estimation procedure serves as an effective mean of identifying deliberate impacts or cyber-attacks on the information-communication subsystem and eliminating their consequences on technological subsystem operation. Ways to improve the efficiency of the State Estimation procedure for solving this task are considered.

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Section: The Role Of the Se Problem In Providing The Cyber-physical S...mentioning

confidence: 99%

Application of the state estimation procedure to improve the cyber-physical stability of the smart grid

Kolosok,

Korkina,

Demidov

2023

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…Moreover, the state estimation algorithms using the test equations are less laborious and have a high speed, since the order of the system of test equations is as a rule substantially lower than that of the initial system (2). Besides, the obtained test equations make it possible to analyse bad data before implementation of the state estimation procedure [5]. All the identified erroneous measurements are revealed simultaneously without repetition of the state estimation procedure.…”

Section: Power System State Estimation Test Equations Methodsmentioning

confidence: 99%

Practicability of SPS coordination in market environment for impending UCTE-IPS/UPS interconnection

Grobovoy¹,

Grishin²,

Kolosok³

International Symposium CIGRE/IEEE PES, 2005.

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Progress in the UCTE-IPS/UPS electricity transmission system study causes the posing a question concerned the principles that could be used for coordination of so-called system protection schemes (SPS) for the impending interconnection. Multitude of ways to coordinate SPS is known but it is difficult to select some of them in the UCTE-IPS/UPS case. There is quantity of well known strategies for on-line dynamic security assessment (DSA) as well as large amount of approaches to SPS development in the power systems. At the same time, different practice of the use of SPS in the UCTE power system and the IPS/UPS can become an impediment to progress in unanimous strategy of SPS coordination. Peculiarities of deregulation in power systems produce supplementary obstacles. It is better to debate this topic before developing SPS coordinating structure for the UCTE-IPS/UPS. Two possible strategies for coordination of SPS in the UCTE-IPS/UPS interconnection are suggested. The structures of two modern Russian SPS complexes are proposed for consideration as probable prototypes for SPS complexes in the UCTE-IPS/UPS project. One of the approaches to power system state estimation that has to be fulfilled by SPS complexes and systems is briefly discussed. The suggestion that the general principles of DSA and the UCTE-IPS/UPS emergency control have to be tested at the European and Russian control centers is formulated. As possible places for such tests in Russia the Zeya and Bureya HPP's SPS complexes are shown. *26-38 Blukherr St, Novosibirsk 630064 0-7803-9191

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Identification of measurement variances based on test equations using ANN

Gamm¹,

Glazunova²,

Kolosok³

2001 IEEE Porto Power Tech Proceedings (Cat. No.01EX502)

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The paper addresses the methods for identification of random error variances in measurements. Consideration is given to the algorithms of identifying variances using a numerical method and ANN. The numerical methods based on calculation of discrepancy correlation in a pair of test equations with a common measurement are presented. Application of ANN allows identification of variances early at the stages of implementing the algorithms of state estimation for the larger part of the existing measurements as well as identification of measurements variances involved in one test equation only. Recommendations on application of the two offered algorithms for EPS state estimation in real conditions are given based on the their study and comparison. Index Termselectric power system, real time, identification of error variances, test equations, Kohonen maps.

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Methods for identification of telemetering random errors variances in electric power systems

Cited by 3 publications

References 0 publications

Application of the state estimation procedure to improve the cyber-physical stability of the smart grid

Application of the state estimation procedure to improve the cyber-physical stability of the smart grid

Practicability of SPS coordination in market environment for impending UCTE-IPS/UPS interconnection

Identification of measurement variances based on test equations using ANN

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