Power System Probabilistic Production Simulation Including Efficiency Power Plant

2014 ◽  
Vol 981 ◽  
pp. 695-700
Author(s):  
Chuan Sheng Xie ◽  
Peng Yuan Zhong ◽  
Chen Chen Zhao ◽  
Cheng Ying Zhou
Keyword(s):  
Power Plant ◽  
Power System ◽  
Environmental Benefits ◽  
System Stability ◽  
Output Curve ◽  
Total Production ◽  
Load Rate ◽  
Negative Effect ◽  
Save Energy ◽  
The Impact

As a measure of demand-side management, efficiency power plant (EPP) can save energy and bring economic and environmental benefits to the power system, although the widely used EPP technology may have negative effect on both power system stability and operation costs. The concept of EPP and its related characteristics such as capacity, output curve, and cost were introduced, and a probabilistic production simulation model based on the equivalent energy function (EEF) method was established to analysis the impact and benefits of EPP. With a numerical example, a result is found that EPP can not only improve the reliability and load rate of power system, thus reducing the social costs of power outage, but also reduce the total production and operating costs of power system.

Design of Energy Saving System for Hybrid Power Loader

2013 ◽  
Vol 288 ◽  
pp. 148-155
Author(s):  
Qi Hui Lv ◽  
Xin Yuan Xiao
Keyword(s):  
Diesel Engine ◽  
Power System ◽  
Environmental Benefits ◽  
Gravitational Potential Energy ◽  
Super Capacitor ◽  
Hybrid Power ◽  
Software Model ◽  
Auxiliary Power ◽  
High Efficient ◽  
Save Energy

In order to reduce loader engine installed power and save energy, we designed the driving scheme of power system for parallel hybrid loader by Analysis of different way of connection between diesel engine and electric motor. We chose ISG power electric multifunction and super capacitor as the core component to design the Loader auxiliary power system and movable arm cylinder gravitational potential energy recovery system. We established ADVISOR software model of hybrid power Loader, and the simulation results show that diesel engine installed power of the hybrid power Loader is reduced by 21%; fuel consumption is reduced by 9.2%. Through optimize control strategy, the diesel engine can always working in high efficient area or idle area. Practical application shows that this design scheme has the potential economic and environmental benefits.

scholarly journals Electric Vehicles in Jordan: Challenges and Limitations

2021 ◽  
Vol 13 (6) ◽  
pp. 3199
Author(s):  
Laith Shalalfeh ◽  
Ashraf AlShalalfeh ◽  
Khaled Alkaradsheh ◽  
Mahmoud Alhamarneh ◽  
Ahmad Bashaireh
Keyword(s):  
Electric Vehicles ◽  
Distribution System ◽  
Distribution Systems ◽  
Environmental Benefits ◽  
System Stability ◽  
Loading Conditions ◽  
Stability Margins ◽  
High Penetration ◽  
Node Distribution ◽  
The Impact

An increasing number of electric vehicles (EVs) are replacing gasoline vehicles in the automobile market due to the economic and environmental benefits. The high penetration of EVs is one of the main challenges in the future smart grid. As a result of EV charging, an excessive overloading is expected in different elements of the power system, especially at the distribution level. In this paper, we evaluate the impact of EVs on the distribution system under three loading conditions (light, intermediate, and full). For each case, we estimate the maximum number of EVs that can be charged simultaneously before reaching different system limitations, including the undervoltage, overcurrent, and transformer capacity limit. Finally, we use the 19-node distribution system to study these limitations under different loading conditions. The 19-node system is one of the typical distribution systems in Jordan. Our work estimates the upper limit of the possible EV penetration before reaching the system stability margins.

scholarly journals IMPACT OF INFILL DEVELOPMENT ON PRICES OF EXISTING APARTMENTS IN FINNISH URBAN NEIGHBOURHOODS

2018 ◽  
Vol 22 (3) ◽  
pp. 157-167 ◽  
Author(s):  
Hannele AHVENNIEMI ◽  
Kyösti PENNANEN ◽  
Antti KNUUTI ◽  
Anne ARVOLA ◽  
Kauko VIITANEN
Keyword(s):  
Housing Prices ◽  
Property Values ◽  
Environmental Benefits ◽  
Negative Externalities ◽  
Infill Development ◽  
Urban Neighbourhoods ◽  
Negative Effect ◽  
Amenity Effect ◽  
The Impact ◽  
Existing Housing

Popularity of infill development is increasing because of the environmental benefits and cost saving potential it provides, which relate to the possibility to use existing infrastructure and services. However, the impact of infill development on value of existing properties has not been studied to a sufficient extent. Therefore, the aim of our study is to analyse whether infill development affects the prices of existing apartments. We carried out statistical analysis based on data from seven case neighbourhoods, and prices of more than 6000 housing transactions from one decade. The results of our analysis do not support the hypothesis of infill development affecting positively existing housing prices, but neither did the study show a significant negative effect. Both amenity effect and negative externalities may provide explanations as to why property values do not change due to infill development.

scholarly journals Assessing the Impact of DFIG Synthetic Inertia Provision on Power System Small-Signal Stability

Energies ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3440 ◽  
Author(s):  
Edgar Lucas ◽  
David Campos-Gaona ◽  
Olimpo Anaya-Lara
Keyword(s):  
Power System ◽  
Large Scale ◽  
Damping Ratio ◽  
System Stability ◽  
Electrical Network ◽  
Small Signal ◽  
Small Signal Stability ◽  
Signal Stability ◽  
Electromechanical Modes ◽  
The Impact

Synthetic inertia provision through the control of doubly-fed induction generator (DFIG) wind turbines is an effective means of providing frequency support to the wider electrical network. There are numerous control topologies to achieve this, many of which work by making modifications to the DFIG power controller and introducing additional loops to relate active power to electrical frequency. How these many controller designs compare to one-another in terms of their contribution to frequency response is a much studied topic, but perhaps less studied is their effect on the small-signal stability of the system. The concept of small-signal stability in the context of a power system is the ability to maintain synchronism when subjected to small disturbances, such as those associated with a change in load or a loss of generation. Amendments made to the control system of a large-scale wind farm will inevitably have an effect on the system as a whole, and by making a DFIG wind turbine behave more like a synchronous generator, which synthetic inertia provision does, may incur consequences relating to electromechanical oscillations between generating units. This work compares the implications of two prominent synthetic inertia controllers of varying complexity and their effect on small-signal stability. Eigenvalue analysis is conducted to highlight the key information relating to electromechanical modes between generators for the two control strategies, with a focus on how these affect the damping ratios. It is shown that as the synthetic inertia controller becomes both more complex and more effective, the damping ratio of the electromechanical modes is reduced, signifying a decreased system stability.

Investigating the Impact of Hybrid Energy Storage System on Isolated Power System

2013 ◽  
Vol 397-400 ◽  
pp. 1923-1929
Author(s):  
Xin Zhi Wang ◽  
Li Xia ◽  
Chao Zhang
Keyword(s):  
Energy Storage ◽  
Power System ◽  
Compensation Effect ◽  
Storage System ◽  
Energy Storage System ◽  
System Stability ◽  
Hybrid Energy ◽  
Hybrid Energy Storage ◽  
Hybrid Energy Storage System ◽  
The Impact

Based on new ship isolated power system, the models of power station, loads and hybrid energy storage system (HESS) are built. Fuzzy control theory is adopted to control different energy storage modules (ESM) coordinately, effectively level the fluctuation of loads and improve system stability. Simulations in Matlab/Simulink investigate the impact of different control filter parameters on compensation effect of HESS, and the impact of ESMs performance on HESS compensation.

scholarly journals Voltage stability analysis of wind power plant integration into transmission network of Nepal

2021 ◽  
Vol 1 (1) ◽  
pp. 32-44
Author(s):  
Sagar Dharel ◽  
Rabindra Maharjan
Keyword(s):  
Stability Analysis ◽  
Power Plant ◽  
Power System ◽  
Wind Power ◽  
Alternative Energy ◽  
Voltage Stability ◽  
Stability Study ◽  
Simulation Software ◽  
System Stability ◽  
Wind Power Plant

Government of Nepal has realized that wind energy could become a major source of alternative energy to solve energy crisis in the country as well as serve the purpose of energy mix. Various studies have identified several locations with potential for wind power generation in Nepal. The integration of wind power plant to the national grid, however, raises concerns regarding the power system stability. The voltage stability of the grid is a key issue, the effect on which increases with the increase in wind power penetration in the grid. This study performs voltage stability analysis due to high penetration of wind power in Integrated Nepalese Power System (INPS). Both steady state and dynamic stability study is performed using the power system simulation software DigSILENT/PowerFactory for different types of wind turbine generators.

scholarly journals Impact of micro hydro power plants on transient stability for the micro grid 20 kV system

2021 ◽  
Vol 24 (3) ◽  
pp. 1278
Author(s):  
Syarifuddin Nojeng ◽  
Syamsir Syamsir ◽  
Reny Murniati
Keyword(s):  
Power Plant ◽  
Power System ◽  
Electric Power ◽  
Transient Stability ◽  
Interconnection Network ◽  
Electric Power System ◽  
Hydro Power ◽  
Micro Grid ◽  
The Stability ◽  
The Impact

Transient stability analysis is conducted to determine the ability of the electric power system in maintaining the operating stability after a major disturbance. The disturbance can be trigger an impact on the stability of the rotor angle, voltage, and system frequency which can cause loss of synchronization. In this paper, the impact of the interconnection of the Tombolo-Pao mini hydro power plant (MHPP) on the stability of the system was analyzed by several scenarios to determine the behavior of system parameters in a 20 kV system interconnection network. This research is an implementation of regulatory provisions relating to the study of the connection to the PLN distribution network through by regulator. Based on the result of simulation study, transient stability of generators at TomboloPao power plant about 0.1 second, will not occur with network configuration according to modeling activation of anti-islanding protection of Tombolo Pao Power Plant which is set by 2 second. The simulation results show that the location of the disturbance in the electric power system has been influenced by the behavior of the power plant (synchronous generator) which can lead to the instability of the micro-hydro connected to the micro-grid system 20 kV.

Sign in / Sign up

Export Citation Format

Share Document