scholarly journals Power System Market Planning

2019 ◽  
Vol 4 (11) ◽  
pp. 17-21
Author(s):  
Isa Salman Qamber ◽  
Mohamed Y Al-Hamad
Keyword(s):  
Electric System ◽  
Load Models ◽  
Market Planning ◽  
Security Standard ◽  
Generation Capacity ◽  
Supply Risks ◽  
Optimal Reserve ◽  
And Control ◽  
Power System Market ◽  
Loss Of Load Expectation

The loss of load expectation (LOLE) considered an acceptable security standard across most of the national electricity systems. In the present study, the LOLE is calculated. This means that the LOLE needs developing a model. The developed model serving to assesses the security of supply risks associated with the different electricity capacity margin levels, where the capacity margin is the level by which available electricity generation capacity exceeds the maximum expected level of demand. Then, the developed model updated on an annual basis. The annual update is helping to fulfill the Electricity Authority for planning, operation and control. The developed model will assess the system by calculating the capacity margin probability by combining both the generation and load models. The calculation of LOLE is an internationally accepted criterion in capacity adequacy.  The results for the model of each region vary due to several factors, such as generation resource, load forecast, and forced outage rates (FOR). The estimation of the risk is economically optimal reserve margin to a number of case studies assumptions considered in the present study. The results help in future planning for the electric system operation and control. Furthermore, the study is helping to evaluate the implications of the obtained results for the electricity policy market to determine the best model for market design in the future.

scholarly journals Assessing the Impact on Grid Infrastructure of Electrification Pathways for the Italian Residential Sector

Electricity ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 48-62
Author(s):  
Andrea Trabucchi ◽  
Lidia Premoli Vilà ◽  
Marco Borgarello ◽  
Giorgio Besagni
Keyword(s):  
Transmission Lines ◽  
Paris Agreement ◽  
Essential Factor ◽  
Grid Infrastructure ◽  
Electric System ◽  
Residential Sector ◽  
Sector Model ◽  
Power Increase ◽  
Generation Capacity ◽  
The Impact

To achieve the decarbonization objectives described in the Paris Agreement, thermal appliances’ electrification is considered an essential factor. Unfortunately, the substitution of thermal appliances with electric alternatives will inevitably increase the load on the national electric system; thus, it is crucial to perform analyses to assess these policies’ impact. This paper, using as a reference the electrification pathways studied by Besagni et al. employing the MOIRAE (bottom-up MOdel to compute the energy consumption of the Italian REsidential sector) model, calculates the energy and power increase in the residential sector in 2030 due to the substitution of different thermal appliances and discusses potential policies to take into account the effect of their implementation on the Italian electric system. Even if the current generation capacity can sustain the electrification process without problems, investments will be needed to limit the possibility of congestions on transmission lines connecting the country’s northern and southern parts.

Design of Direct-Driven Type Wind Power Generation Experimental Platform System

2012 ◽  
Vol 608-609 ◽  
pp. 483-486
Author(s):  
Li Zhang ◽  
Xiao Ming Wang ◽  
Can Li
Keyword(s):  
Wind Power ◽  
Wind Generation ◽  
Experimental Platform ◽  
Detection Circuit ◽  
Test Platform ◽  
Generation Capacity ◽  
Platform System ◽  
And Control ◽  
Constant Growth ◽  
Power Electronic Converter

Although the world wind generation capacity is in constant growth, the technology of wind generation is not perfect. Therefore, the research on wind power technology research is very neces-sary .Research on the design scheme of test platform of hardware, design wind turbine simulator, the power electronic converter device, platform detection circuit, drive circuit and control circuit and other parts, and build the direct-driven type of wind generation experimental platform. It by the generator commissioning, the analysis result has demonstrated that the design of the system is rational.

scholarly journals Robust Multi-Layer Energy Management and Control Methodologies for Reefer Container Park in Port Terminal

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4456
Author(s):  
Rui Pei ◽  
Jihua Xie ◽  
Hanlin Zhang ◽  
Kaiyu Sun ◽  
Zhi Wu ◽  
...  
Keyword(s):  
Energy Management ◽  
Hierarchical Control ◽  
Peak Load ◽  
Temperature Limit ◽  
Fine Tuning ◽  
Operating Costs ◽  
Electric System ◽  
Control Scheme ◽  
Forecast Data ◽  
And Control

The full electrification of ports is a promising prospect for saving energy and reducing greenhouse gas emissions. The control scheme of the reefer container is particularly important for the energy management of the port, as the operation of the reefer container is one of the main energy consumers of ports. This paper proposes a reefer container hierarchical control scheme that contains a day-ahead module and intra-day module which is used to generate a rough scheduling strategy based on forecast data and fine-tuning the strategy, respectively. The final strategy should realize the economical operation while ensuring that each reefer container does not exceed the temperature limit during operation. Numerical analysis on the reefer container park with 200 and 850 containers using the Time of Use (TOU) tariff and super-peak tariff is fully analyzed. In the case of 200 containers, the proposed method helps reduce operating costs by about 14.7%, and 18% in the scenario of 850 containers. The proposed method can effectively save container operating costs and ensure that the internal temperature of the container does not exceed the limit while changing the distribution of energy which could help alleviate the peak load problem of the port electric system.

Design of Electric Power System Based on Component GIS

2012 ◽  
Vol 182-183 ◽  
pp. 768-772
Author(s):  
Jian Min Wang ◽  
Wen Yu Yan
Keyword(s):  
Power System ◽  
Electric Power ◽  
Collaborative Work ◽  
Electric Power System ◽  
Electric System ◽  
General Management ◽  
Component Gis ◽  
S Model ◽  
Gis System ◽  
And Control

GIS is getting more attention in the application of electric power system. This article mainly focuses on the electric GIS system based on the practical need in the electric system. This electric GIS system is composed of three subsidiary systems, among which PDA may transfer data collected by the inspectors to GIS general management and control system through GPRS, design the Geodatabase and system functional modules which accessed by multiple users simultaneously with C/S model, to achieve the automation in the information sharing and collaborative work.

The Study of Parameters Matching Technology for Integrated Starter Generator

2017 ◽  
Author(s):  
Yong Zhou ◽  
Yanting Han ◽  
Yanzhao Mi ◽  
Long Chen
Keyword(s):  
Hybrid Electric Vehicle ◽  
Combustion Engine ◽  
Dynamic Performance ◽  
Mechanical Transmission ◽  
Electric System ◽  
Parameter Matching ◽  
Driving Condition ◽  
Hybrid Electric ◽  
Starter Generator ◽  
And Control

Energy crisis and environment pollution are closely correlated with the widespread use of internal combustion engine (ICE) vehicles. Considering multi-factors, developing hybrid electric vehicle (HEV) is an ideal solution to solve the problems since its environmental protection and practicability. Integrated Starter Generator (ISG), integrated by two motors between engine and mechanical transmission system, performs better in efficiency and economy. This paper attempts to design a parameter matching method of hybrid electric system according to its dynamic performance, driving condition and control strategy. An ISG model and the model of parameter matching HEV system are proposed in this paper.

scholarly journals Generation capacity adequacy evaluation based on peak load consideration

2006 ◽  
Vol 24 (1) ◽  
pp. 38 ◽  
Author(s):  
R K Saket ◽  
R C Bansal ◽  
G Singh
Keyword(s):  
Peak Load ◽  
Reliability Evaluation ◽  
Generation System ◽  
Load Duration ◽  
Load Models ◽  
Load Duration Curve ◽  
Straight Line ◽  
Generating Capacity ◽  
Generation Capacity

This paper describes a new methodology based on peak load consideration for reliability evaluation of a generation system. The methodology has been developed using Simpson?s (1/3)rd rule for loss of load probability (LOLP) evaluation. Load models are considered as straight line and stepped load duration curve for reliability evaluation. The LOLP evaluation is based on peak load consideration. The probability of load exceeding the generating capacity has also been considered in LOLP evaluation.

Load modeling techniques in distribution networks: a review

2020 ◽  
Vol 1 (2) ◽  
pp. 63-70
Author(s):  
Musa Mohammed ◽  
Abubakar Abdulkarim ◽  
Adamu Sa’idu Abubakar ◽  
Abdullahi Bala Kunya ◽  
Yusuf Jibril
Keyword(s):  
Power System ◽  
Distribution System ◽  
Distribution Systems ◽  
Distribution Networks ◽  
Load Modeling ◽  
System Operation ◽  
Traditional Methods ◽  
Power System Operation ◽  
Load Models ◽  
And Control

Power system operation and control required models of generators, lines and loads to be accurately estimated, this is to enable operators make a reliable decision on the system.  Generators and lines models are so far considered accurate, while load models are considered perplexing due to invention of new types of loads, distribution system are transforming from passive to active. Future distribution systems are desired to be smart and for a network to be smart the system as to be fully and accurately represented. Penetration of renewable energy and application of power electronic devices as well as participation of active customers in distribution systems make traditional methods of load modeling absolute. Accurate load modeling is required to address the new challenges evolving in the task of power system operation, control and stability studies. It is also an interest of power system researchers globally to realize Smart Networks (SNs), in which accurate load models are required. This work described a review of techniques and approaches for load modeling from traditional methods to the state of art in the area. In addition, gaps in the literature as well as research directions are also pointed out.

Time and voltage domain load models for appliance-level grid edge simulation and control

2021 ◽  
Vol 190 ◽  
pp. 106750
Author(s):  
Aaron Goldin ◽  
Elizabeth Buechler ◽  
Ram Rajagopal ◽  
Juan Rivas-Davila
Keyword(s):  
Load Models ◽  
Simulation And Control ◽  
And Control

scholarly journals Assessment of a hybrid propulsion system for short-mid range application with a low-order code

2021 ◽  
Vol 312 ◽  
pp. 11005
Author(s):  
Alberto Amerini ◽  
Leonardo Langone ◽  
Riccardo Vadi ◽  
Antonio Andreini
Keyword(s):  
Environmental Sustainability ◽  
Electric Propulsion ◽  
Propulsion System ◽  
Pollutant Emissions ◽  
Propulsion Systems ◽  
Hybrid Propulsion ◽  
Electric System ◽  
Hybrid Configuration ◽  
And Control ◽  
Low Order

The increase in air traffic expected in the next years must be accompanied by innovation to ensure the lowest possible environmental impact. Hybrid electric-thermal propulsion systems are currently being investigated and could represent a breakthrough for environmental sustainability in the sector. However, the transition to electric propulsion remains challenging due to the current level of energy density related to storage systems, the additional components associated with power conversion and control systems, not to mention the cost of all the associated equipment. The purpose of this study is to carry out a preliminary assessment of a hybrid propulsion system for a short-mid range aircraft. This study investigates the series hybrid configuration, where a turboshaft, a high temperature superconducting (HTS) electric motor, batteries and power converters interact to provide the necessary propulsion for flight. A zero-dimensional procedure is developed to estimate the mass and efficiency of the powertrain components for a selected flight mission. Thermal engines are modeled with the low-order code and coupled with the components of the electric system through a python routine. A comparison in terms of weight and emissions is reported for the designed hybrid propulsion system and the conventional one. The analysis shows that the weight of the two propulsion systems is similar but, the presence of batteries, even considering a higher level of technology than the current one, leads to a significant increase in the weight of the hybrid aircraft. The second part of the study focuses on pollutant emissions, showing that the hybrid system can reduce CO2 emissions by 58% and NOx emissions by 68% compared to the conventional system. Despite the excellent premise, the reduction in payload for the hybrid aircraft causes a reduction in pollutant emissions per passenger only for NOx. For this reason, further technological improvement is needed to make hybrid propulsion advantageous in terms of both payload and pollutant emissions.

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