Integration of battery storage into the German electrical power system

2017 ◽  
Vol 59 (1) ◽  
Author(s):  
David Steber
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electrical Power ◽  
Electric Power System ◽  
Control Algorithms ◽  
Battery Storage ◽  
Electrical Power System ◽  
Development Scenarios ◽  
First Results ◽  
Storage Technologies

AbstractThe further integration of storage into the electric power system is unavoidable regarding the still increasing share of renewables and current market developments. Therefore a lot of different storage technologies are available today. The presented PhD-Thesis project will focus on integrating battery storage to the power system under different system and market conditions. Therefore, coupled control algorithms for single and virtual battery storage systems have to be developed depending on the battery's scope. For analyzing the reliability of different battery's scopes, the developed models will be integrated into an electric power system model for studying their influence on the power system and market concerning different development scenarios (renewables, nuclear phase-out). First actions dealt with the provision of Frequency Containment Reserve (FCR) power by a virtual battery storage under certain conditions in Germany. First results show appropriate working of implemented control algorithms and reliability for different shareholders.

scholarly journals Analysis of 6-Pulse and 12-Pulse in Conversion of the 115VAC/400Hz to 270 VDC for Application on Fighter

AVIA ◽  
2019 ◽  
Vol 1 (1) ◽  
Author(s):  
D R Agustiningsih, E Suwondo, M Kusni
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electrical Power ◽  
Electric Power System ◽  
Pulse Transformer ◽  
Military Aircraft ◽  
Electrical Power System ◽  
Distortion Factor ◽  
Electric Aircraft ◽  
Pneumatic Power

The development of aircraft secondary power technology is moving from mechanical power, pneumatic power and hydraulic power to electric power. The trend toward electric power is known as More Electric Aircraft (MEA). Modern military aircraft are designed using 270VDC for electric power system. Today, some military aircraft still use 115VAC/400Hz for their electrical power system. If this type of aircraft need provides 270VDC electrical power, then they require Multi-Pulse Transformer Rectifier Unit (TRU). The development of this type TRU has not been aimed to comply with aircraft military standards. This research investigates the variation of the number of pulses (p) and firing angle (α) to the amplitude ripple voltage, output voltage, and distortion factor in order to comply with the MIL-STD-704F standards. The multi-pulse transformer rectifier unit being analyzed consists of 6-Pulse and 12-Pulse. The research shows that the amplitude ripple voltage and distortion factor of the 6-Pulse TRU do not comply MIL-STD-704F. The amplitude ripple voltage and distortion factor of 12-Pulse comply MIL-STD-704F with firing angle (α) ≤4°.Keywords: Transformer Rectifier Unit, thyristor, ripple voltage, distortion factor, firing angle

scholarly journals ANALISIS KINERJA PMS REL 2 BAY TRAFO 6 MENGGUNAKAN THERMOVISION METHODE DI GARDU INDUK SUNYARAGI

Foristek ◽  
2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Agus Siswanto ◽  
Reza Alfian ◽  
Erfan Subyanta
Keyword(s):  
Power System ◽  
Contact Resistance ◽  
Electric Power ◽  
Electrical Power ◽  
Good Condition ◽  
Peak Load ◽  
Electrical Energy ◽  
Electric Power System ◽  
Electrical Power System ◽  
T Phase

In an effort to provide reliable and efficient electrical energy, substations have an important role in regulating the demand for electric power loads and as a center for securing electrical power system components in a certain area. Frequent disturbances become a benchmark for an electric power system whether or not it is good or not in an effort to provide reliable and efficient energy. One of the maintenance measures is temperature measurement using thermal imagers, which is commonly referred to as thermovision measurement.Thermal imager is a tool that can be used for predictive maintenance activities to monitor the condition and performance of an equipment so that the possibility of equipment failure can be minimized. In October 2020, after thermovisiting transformer bay 6 at the Sunyaragi substation, it was discovered that there was a hotspot on the T-phase separation blade, causing heating of the blade, the above conditions can result in a decrease in PMS performance, with the worst condition if left alone can result in damage to the PMS blade and can also melt when the peak load is on the transformer 6. Under these conditions, maintenance is carried out by maintaining contact resistance, insulation resistance, and grounding resistance. The results of the analysis of contact resistance after maintenance show that the equipment is in good condition and still suitable for use, with a value of 7μΩ for the R phase, 6.5μΩ for the S phase, and 6.7μΩ for the T phase.

A DESIGN FOR A SUSTAINABLE ELECTRICAL POWER SYSTEM

2014 ◽  
Vol 10 (01) ◽  
pp. 55-67
Author(s):  
S. Z. STEFANOV ◽  
PAUL P. WANG
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electrical Power ◽  
Green Energy ◽  
Electric Power System ◽  
Electrical Power System ◽  
Maxwell’S Demon ◽  
Scheme Design ◽  
Maxwell's Demon ◽  
Synchronization Protocol

A sustainable electric power system (EPS) is designed in this paper. First, a protocol is given, via which Maxwell's demon transfers green energy into optimally secure and efficient EPS. Then a morphogenesis scheme (design) of a homeostatic demon is determined, so that the demon can achieve sustainable EPS stability. It is shown that synchronization protocol complicates the sustainable EPS and that the beneficial design transforms the sustainable EPS in a complex community. A sustainability test is introduced for the sake of coping with the issue in the sense the test serves to determine the EPS is indeed sustainable.

BASIN CONFIGURATION OF A SIX-DIMENSIONAL MODEL OF AN ELECTRIC POWER SYSTEM

2002 ◽  
Vol 12 (06) ◽  
pp. 1333-1356 ◽  
Author(s):  
YOSHISUKE UEDA ◽  
HIROYUKI AMANO ◽  
RALPH H. ABRAHAM ◽  
H. BRUCE STEWART
Keyword(s):  
Power Systems ◽  
Power System ◽  
Initial Conditions ◽  
Electrical Power ◽  
Practical Importance ◽  
Intervention Strategy ◽  
Basins Of Attraction ◽  
Electric Power System ◽  
Point Of View ◽  
Electrical Power System

As part of an ongoing project on the stability of massively complex electrical power systems, we discuss the global geometric structure of contacts among the basins of attraction of a six-dimensional dynamical system. This system represents a simple model of an electrical power system involving three machines and an infinite bus. Apart from the possible occurrence of attractors representing pathological states, the contacts between the basins have a practical importance, from the point of view of the operation of a real electrical power system. With the aid of a global map of basins, one could hope to design an intervention strategy to boot the power system back into its normal state. Our method involves taking two-dimensional sections of the six-dimensional state space, and then determining the basins directly by numerical simulation from a dense grid of initial conditions. The relations among all the basins are given for a specific numerical example, that is, choosing particular values for the parameters in our model.

A Review of the Smart Grid Concept for Electrical Power System

2022 ◽  
pp. 1361-1385
Author(s):  
Amam Hossain Bagdadee ◽  
Li Zhang
Keyword(s):  
Smart Grid ◽  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
Smart Grids ◽  
Electrical Power ◽  
Future Generation ◽  
Electric Power Systems ◽  
Basic Information ◽  
Electrical Power System

The review this article conducts is an extensive analysis of the concept of a smart grid framework with the most sophisticated smart grid innovation and some basic information about smart grid soundness. Smart grids as a new scheme for energy and a future generation framework encourages the expansion of information and progress. The smart grid framework concord will potentially take years. In this article, the focus is on developing smart networks within the framework of electric power systems.

scholarly journals RANCANG BANGUN SIMULASI DISPLAY ARUS GANGGUAN RELAI PROTEKSI SEL 551 DI MASTER STATION PADA SCADA SURVALENT SEBAGAI UPAYA MEMPERBAIKI SAIDI

2015 ◽  
Vol 18 (2) ◽  
Author(s):  
Dzulfikar Muhammad Azhar ◽  
Yuniarto Yuniarto
Keyword(s):  
Power System ◽  
Power Distribution ◽  
Fault Location ◽  
Electrical Power ◽  
Electric Power System ◽  
Fault Current ◽  
Electrical Power System ◽  
Control Center ◽  
Current Value ◽  
Master Station

Dzulfikar Muhammad Azhar, Yuniarto, in this paper explian that disruption of the power distribution network of 20 KV greatly influence the level of reliability of electric power system. Localize interference by means of network down one by one causing a long recovery time. As a result, SAIDI relatively high value. Protection Relays 551 SEL has a feature that can save the nominal fault current value last received. The value stored in the relay memory. Value of fault current can be processed into the distance nuisance. Thus, the fault current value can help officers to track the fault location based on distance. SCADA as a system that monitors and controls the electrical power system equipment remotely in real time on duty to display the current value of disturbance located at 551 SEL protection relays to be sent to the Control Center or the Master Station. Keywords : SCADA, fault current, relay protection 551 SEL

Development of China's Electrical Power System

1989 ◽  
Vol 7 (5) ◽  
pp. 328-336
Author(s):  
David Denny
Keyword(s):  
Power System ◽  
Electric Power ◽  
Power Supply ◽  
Electrical Power ◽  
Foreign Technology ◽  
Industrial Output ◽  
Electrical Power System ◽  
Transmission Networks ◽  
Electric Power Supply ◽  
Output Only

The downtrend in electrical output, 10-14% 1977-79 to 6% 1979-84, was reversed to 7.4% between 1980 and 1987 when 35,000 Mw of capacity was added, transmission networks were expanded and regional grids linked. Part of this success arose from policies that replaced a monolithic system of bureaucratic planning to involvement of local interests and decentralization. Chinese organizations have also been able to take advantage of foreign technology and investment. Nevertheless, industrial output only reached 75-80% of its potential due to inadequate electric power supply.

scholarly journals Analysis of The Failure Protection System 20 KV CBO T75B Substation Malibu Feeder PT PLN (Persero) UP3 Menteng

2021 ◽  
Vol 6 (2) ◽  
pp. 1422
Author(s):  
Doni Abdul Mukti ◽  
Budi Sudiarto
Keyword(s):  
Power System ◽  
Electric Power ◽  
Power Distribution ◽  
Distribution System ◽  
Short Circuit ◽  
Performance Testing ◽  
Electric Power System ◽  
Protection System ◽  
Electrical Power System ◽  
Power Distribution System

Protection is a safety in the electric power system installed in the electric power distribution system, power transformer, electric power transmission, and electric generator used to secure the power system electricity from electrical disturbances or overloads by separating the disturbed parts of the electric power system from the undisturbed electrical power system so that the undisturbed electrical system can continue to work. The protection system at the T75B substation has a work failure where when there is a short circuit on the consumer side, it causes the PMT (Power Breaker) for the Malibu Feeder at the Kebon Sirih Substation to trip while the CBO (Circuit Breaker Outgoing) cubicle at the T75B substation does not trip. This resulted in an unexpected widespread blackout. To find out the cause of the failure of the protection system, several tests and analyzes were carried out, namely protection design testing, protection relay coordination testing, protection system construction analysis, protection equipment performance testing. It is hoped that the test results can be used as a reference for improvement so that similar failures do not recur.

Design and Research of Offshore Drilling Platform Electric Power System

2014 ◽  
Vol 986-987 ◽  
pp. 915-918
Author(s):  
Ping Liang Chen
Keyword(s):  
Power System ◽  
Short Circuit ◽  
Electrical Power ◽  
Electric Power System ◽  
Electrical Power System ◽  
Offshore Drilling ◽  
Electric System ◽  
Engineering Software ◽  
Short Circuit Calculation ◽  
Drilling System

In order to design a reasonable safe power control system and realize the automated management of offshore drilling system, this paper analyzes the electric system features and grid configuration of drilling platform; power station design and short circuit calculation; electrical power system electroplax selection. This system adopts oceanographic engineering software EDSA for construction and parameter input and conducts short-circuit calculation for modeling and simulation. The electric system design and short-circuit calculation can be examined by simulation result and real platform.

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