Wyniki wyszukiwania - BazTech

1

The concept of application for intelligent building management on a "SaaS" platform

Petvaldsky P., Bilik P.

Zeszyty Naukowe. Elektryka / Politechnika Opolska

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2012

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z. 68

91--98

EN

The new concept of software systems Solutions based on Web services is becoming more popular in information technology. The concept of „SaaS“ provides cost savings and eliminatcs the need tor installation and operation of software on the user side. Especially for end-users this concept brings significant benefits. In engincering software applications it offers the possibility to use this conccpt for widc layer of users. One industry that is undergo- ing a dynamie expansion is the area of building management systems. Implementation of applications based on a "SaaS" can bring distinct advantagcs against common software Solutions.

2

The application for hybrid power system data evaluation

Manas J., Bilik P.

Zeszyty Naukowe. Elektryka / Politechnika Opolska

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2012

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z. 68

85--90

EN

In conference EPE 2011, the monitoring system to measure and visualize the performance parameters ot the hybrid power system was presented. In this year we would like to present data analysis results computed by developcd application. The application reads the mcasurement data (il bas been acquired for last nine months) from the monitoring system. This data is transformed to power flows in the individual branches, equipment effcctiveness and performance parameters in the graphs. The application is currently used for hybrid power system revicw. The paper describcs achievcd results and needs for further improvements of such solution.

3

Testinc of dynamic behaviour of pmu and the results of the basic tests

Horinek M., Bilik P.

Zeszyty Naukowe. Elektryka / Politechnika Opolska

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2012

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z. 68

75--83

EN

The PMU (Phasor Measurement Unit) is used for accurate measurement of synchronous phasor of voltages and currents. Based on synchronous phasor continuous measuremcnt al the diffcrent location of distribution network is possible prevent fault which can cause blackout. Synchronous phasor measurement is dcscribed in IEEE C37.118-2005 standard. The IEEE C37.118-2005 is primarily focuscd on communication with the PMU and precision of the measurement at steady statc. PMU manufacturers declare compliance with IEEE C37.118-2005, which doesn't mean correct behaviour of the PMU for dynamie changes in the power network. The new standard for the PMU is currcntly developing. This standard should contain both the issues included in IEEE C37.118-2005 and description of PMU test- ing in connection with dynamie changes in power network. This article deals with the implementation of tests for testing the dynamie properties of PMU. These tests are conducted by tester, which was designed and implementcd based on virtual instrumentation. The results of several tests of commcrcial PMUs are presented in the article.

4

PMU data stream generator for testing of transmission properties in PMU virtual networks

Repka P., Bilik P.

Zeszyty Naukowe. Elektryka / Politechnika Opolska

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2012

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z. 68

99--107

EN

Increasing deniands for quality and reliability of electrical supply with rising complexity of electrical networks put emphasis on possibility to monitor and foresee behavior of these networks. One of the main aims of this monitoring is to prevent events that may cause failure or evcn datnages of the transmission network or the user side. This is the reason why units for synchrophasor measurements getting increased attention these days. Main function of PMU units is to measure and report the network status in predefincd locations. PMU features in terms of evaluation and reporting dcscribe the standard IEEE C37.188. As well as measurement, very important part is also a data transfer to higher systems. This article de- seribes standard IEEE C37.118 in terms of data frames transfer and structure of these frames between PMU and PDC systems. Part of this work also describes PMUGen software which simulate PMU data stream and cnables to study transmission in PMU networks. This software is dcveloped in graphical environment LabVIEW. This software enables creation of virtual PMU units without using of any spccial hardware and will be used as a tool for teaching students interested in this field.

5

Czech position to the new version of EN50160 standard

Prochazka K., Mezera D., Bilik P.

Electrical Power Quality and Utilisation. Journal

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2009

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Vol. 15, iss. 2

21--22

EN

The paper presents general results of a three-year measurement of voltage quality (VQ) carried out at a selected sample of 80 LV distribution networks in all regions of the Czech Republic, both from the point of view of the standard EN 50160:2007 [1] and with regard to its proposed changes [2] elaborated based on the requirements of ER GEG [3]. The paper also deals with possible consequences for DNOs relating to compensations to customers for VQ acc. to ERO Decree [4] an, with the costs for reconstruction of all LV networks, in which some parts do not fulfil the valid EN 50160 and its proposed changes.

6

Zastosowanie modularnego systemu embedded cRIO do uniwersalnych elastycznych przyrządów pomiarowych

Bilik P., Koval L., Hula J.

Energetyka

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2008

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nr 10

653-656

PL

Przedstawiono nową platformę sprzętową, wykorzystującą uniwersalny analizator jakości energii elektrycznej i nowe środki SW stosowane do zdalnej transmisji danych z tego analizatora i do analizy danych pomiarowych.

EN

Presented is a new equipment set making use of the universal electric energy quality analyser. Described are SW means applied for remote data transmission from this analyser and for analysis of measuring data.