Operating Experience with an Induction Wind Generator On a 12.5 kV Distribution System

2007 ◽  
Author(s):  
Timothy W. Bartel
Keyword(s):  
Distribution System ◽  
Operating Experience ◽  
Wind Generator

A Novel FACTS Based (DDSC) Compensator for Power-Quality Enhancement of L.V. Distribution Feeder with a Dispersed Wind Generator

2006 ◽  
Vol 7 (3) ◽  
Author(s):  
Adel M Sharaf ◽  
Khaled Mohamed Abo-Al-Ez
Keyword(s):  
Power Quality ◽  
Distributed Generation ◽  
Distribution System ◽  
Power Transmission ◽  
Traditional Approach ◽  
Distribution Networks ◽  
System Capacity ◽  
Quality Enhancement ◽  
Wind Generator ◽  
Transmission And Distribution

In a deregulated electric service environment, an effective electric transmission and distribution networks are vital to the competitive environment of reliable electric service. Power quality (PQ) is an item of steadily increasing concern in power transmission and distribution. The traditional approach to overcoming capacity and quality limitations in power transmission and distribution in many cases is the addition of new transmission and/or generating capacity. This, however, may not be practicable or desirable in the real case, for many of reasons. From technical, economical and environmental points of view, there are two important - and most of the time combined - alternatives for building new transmission or distribution networks to enhance the transmission system capacity, and power quality: the Flexible alternating current transmission devices and controllers, and the distributed generation resources near the load centers. The connection of distributed generation to the distribution grid may influence the stability of the power system, i.e. angle, frequency and voltage stability. It might also have an impact on the protection selectivity, and the frequency and voltage control in the system. This paper presents a low cost FACTS based Dynamic Distribution System Compensator (DDSC) scheme for voltage stabilization and power transfer and quality enhancement of the distribution feeders connected to a dispersed wind generator, using MATLAB/ SimPower System simulation tool.

RHIC 25 kW Refrigerator and Distribution System, Construction, Testing, and Initial Operating Experience

1998 ◽  
pp. 499-506 ◽  
Author(s):  
M. Iarocci ◽  
J. Sondericker ◽  
K. C. Wu ◽  
J. Benson ◽  
Y. Farah ◽  
...  
Keyword(s):  
Distribution System ◽  
Operating Experience ◽  
System Construction

scholarly journals Operating experience and ways to improve the performance of the service water supply system at the Novovoronezh NPP II (Units 1 and 2)

2020 ◽  
Vol 6 (4) ◽  
pp. 253-260
Author(s):  
Vladimir P. Povarov ◽  
Dmitry B. Statsura ◽  
Dmitry Ye. Usachev
Keyword(s):  
Distribution System ◽  
Water Distribution ◽  
Cooling Tower ◽  
Water Distribution System ◽  
Cooling System ◽  
Cooling Water ◽  
Operating Experience ◽  
Supply System ◽  
Summer Period ◽  
Service Water

The operating experience of Novovoronezh NPP II-1 shows that, in the summer period, the temperature of the cooling water exceeds the design value: this indicates the insufficient performance of the service water supply system. The main factor that has a negative impact on the performance of this system is the formation of carbonate deposits on the cooling tower filler. At Novovoronezh NPP II-1, the cooling tower water distribution system was cleaned from carbonate deposits by the method of combined vibration and aerohydraulic impact. The tested method of cleaning the filler cannot be considered optimal, since the main stage that determines the entire cleaning duration is the assembly/disassembly of the cooling tower filler. It is necessary to continue research on the choice of a strategy for controlling the carbonate deposition rate, taking into account the revealed influence of the design features of the main cooling water pipelines and pipelines of the cooling tower water distribution system on the mechanism of deposit formation in the peripheral spraying area. As compensating measures to ensure the required temperature regime of the turbine plant equipment at Novovoronezh NPP II-1, it is practiced during the summer period to put the standby heat exchangers of the lubrication system and the standby pump of the nonessential services cooling water system into parallel operation. This solution is fraught with the risk of an unplanned decrease in the electrical load if this equipment is turned off in the event of a malfunction. To increase the operating stability of Novovoronezh NPP II-1 and -2 in the summer period, it is proposed to carry out a number of measures aimed at mitigating the negative consequences caused by the elevated service water temperature. Equipment upgrade options are evaluated, e.g., by installing an additional pump for the turbine building services cooling system and (or) laying an additional pipeline to supply part of the makeup water from the Don River directly to the suction pipelines of the pumps of the turbine building services cooling system.

scholarly journals Cataloging system for Russian satellites remote sensing data: main characteristics and operating experience

2020 ◽  
Vol 223 ◽  
pp. 03023
Author(s):  
Alexey Kadochnikov ◽  
Alexey Tokarev
Keyword(s):  
Remote Sensing ◽  
Satellite Data ◽  
Distribution System ◽  
Research Work ◽  
Operating Experience ◽  
Remote Sensing Data ◽  
Practical Experience ◽  
Automated System ◽  
Sensing Data ◽  
Sensing System

A local archive and a system for cataloging satellite data from Russian spacecraft that are received by the FRC KSC SB RAS through the services of the Roscosmos Geoportal have been developed. An automated system for remote sensing data preprocessing has been created, which significantly simplifies access to information, implements search services and web visualization of images registered in the catalog. Practical experience in operating the system has revealed a number of shortcomings of the existing Roscosmos data distribution system. Presented data on the execution of the Roscosmos satellite survey order in 2019 they show that the capabilities of the Russian remote sensing system are very limited, and a significant part of the planned research work has not been implemented due to the lack of ordered satellite data.

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