"parallel publishing" - Selaus asiasanan mukaanArtikkelit
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A class of multi-parametric quadratic program with an uncertain objective function
(Elsevier, 12.07.2020)
articleIn this paper we analyze a class of multi-parametric quadratic program (mpQP) with parameters in the objective function. Except for parameters in coefficients associated with the linear term, the coefficient of the quadratic ... -
Active and reactive power requirements at DSO-TSO interface : a cases study based on four European countries
(International Conference and Exhibition on Electricity Distribution CIRED, 2018)
conferenceObjectThe ENTSO-E network code for demand connection sets harmonized requirements for connecting large renewable energy generation units as well as demand response facilities and furthermore reactive power limits which need to ... -
Active network management scheme for reactive power control
(CIRED, 07.06.2018)
conferenceObjectIn the future new options to provide needed technical ancillary services locally and system-wide by distributed energy resources (DER) are needed. One ancillary service which DER could provide is the reactive power management ... -
Does calendar time portfolio approach really lack power?
(Canadian Center of Science and Education (CCSE), 22.08.2014)
articleThis paper investigates whether the calendar time methodology lacks power in detecting the long-run abnormalperformance of the firms after major corporate events. In addition, the study proposes a variant of calendar ... -
Fault type and location detection in islanded microgrid with different control methods based converters
(CIRED, 21.05.2007)
conferenceObjectIn this paper the fault type and location detection in an islanded low voltage (LV) distribution network based microgrid with converters applying different control methods is studied. In the ... -
Light-weight IEC 61850 GOOSE based LoM protection for smart grid
(CIRED, 07.06.2018)
conferenceObjectThis paper presents a novel Loss of Mains (LoM) protection method based on IEC 61850 General Object Oriented Substation Event (GOOSE) protocol. With the increased penetration of distributed generation (DG), the requirements ... -
Novel protection approach for MV microgrid
(CIRED, 06.06.2011)
conferenceObjectThe amount of distributed generation (DG) connected to medium voltage (MV) networks is expected to increase continuously. This trend creates a good opportunity to use MV feeders as microgrids. Normally ... -
Pricing of IPOs : further evidence from South Africa
(Virtus Interpress, 2015)
articleWe examine the long-term performance of 225 IPOs listed on the Johannesburg Securities Index (JSE) during the period from 1996 to 2006. The buy-and-hold abnormal return (BHAR) method and the calendar time portfolio (CTP) ... -
Protection system for future LV microgrids
(CIRED, 06.06.2011)
conferenceObjectTraditional protection of low voltage (LV) network will not be applicable for future LV microgrids and new adaptive protection system must be developed. In this paper adaptive protection system for LV microgrid during ... -
Sensitivity analysis of frequency and voltage stability in islanded microgrid
(CIRED, 21.05.2007)
conferenceObjectThis paper studies the voltage and frequency stability of an islanded microgrid and the sensitivity of these quantities to certain changes in system configuration. In conventional power systems the system frequency ... -
Utilization of a mixture of CTs and current sensors in line differential protection applications
(CIRED, 03.06.2019)
conferenceObjectThe popularity of Rogowski sensors is increasing due to their advantages over conventional CTs. Consequently, network utilities may sometimes end up facing a question whether it would be possible to use line differential ... -
Voltage and current THD in microgrid with different DG unit and load configurations
(CIRED, 23.06.2008)
conferenceObjectAfter microgrid transition from the normal operation to the islanded operation the system impedance changes considerably and it affects on the harmonic voltages of the microgrid. In this paper the voltage ...