scholarly journals Cost Consensus Algorithm Applications for EV Charging Station Participating in AGC of Interconnected Power Grid

2019 ◽  
Vol 9 (22) ◽  
pp. 4886 ◽  
Author(s):  
Jun Tang ◽  
Xiang Ma ◽  
Ren Gu ◽  
Zhichao Yang ◽  
Shi Li ◽  
...  
Keyword(s):  
Southern China ◽  
Power Grid ◽  
Automatic Generation ◽  
Power Grids ◽  
Consensus Algorithm ◽  
Frequency Regulation ◽  
Charging Station ◽  
Regulation Costs ◽  
Ev Charging ◽  
Generation Control

In order to more effectively reduce the regulation costs of power grids and to improve the automatic generation control (AGC) performance, an optimization mathematical model of generation command dispatch for AGC with an electric vehicle (EV) charging station is proposed in this paper, in which a cost consensus algorithm for AGC is adopted. Particularly, virtual consensus variables are applied to exchange information among different AGC units. At the same time, the actual consensus variables are utilized to determine the generation command, upon which the flexibility of the proposed algorithm can be significantly enhanced. Furthermore, the implement feasibility of such an algorithm is verified through a series simulation experiments on the Hainan power grid in southern China, where the results demonstrate that the proposed algorithm can effectively realize an autonomous frequency regulation of EVs participating in AGC.

scholarly journals On the Contribution of Wind Farms in Automatic Generation Control: Review and New Control Approach

2018 ◽  
Vol 8 (10) ◽  
pp. 1848 ◽  
Author(s):  
Arman Oshnoei ◽  
Rahmat Khezri ◽  
SM Muyeen ◽  
Frede Blaabjerg
Keyword(s):  
Power System ◽  
Wind Turbine ◽  
Frequency Control ◽  
Wind Farms ◽  
Automatic Generation ◽  
Load Frequency Control ◽  
Automatic Generation Control ◽  
Frequency Regulation ◽  
Proportional Integral ◽  
Generation Control

Wind farms can contribute to ancillary services to the power system, by advancing and adopting new control techniques in existing, and also in new, wind turbine generator systems. One of the most important aspects of ancillary service related to wind farms is frequency regulation, which is partitioned into inertial response, primary control, and supplementary control or automatic generation control (AGC). The contribution of wind farms for the first two is well addressed in literature; however, the AGC and its associated controls require more attention. In this paper, in the first step, the contribution of wind farms in supplementary/load frequency control of AGC is overviewed. As second step, a fractional order proportional-integral-differential (FOPID) controller is proposed to control the governor speed of wind turbine to contribute to the AGC. The performance of FOPID controller is compared with classic proportional-integral-differential (PID) controller, to demonstrate the efficacy of the proposed control method in the frequency regulation of a two-area power system. Furthermore, the effect of penetration level of wind farms on the load frequency control is analyzed.

scholarly journals Transactive Energy to Thwart Load Altering Attacks on Power Distribution Systems

2019 ◽  
Vol 12 (1) ◽  
pp. 4 ◽  
Author(s):  
Samuel Yankson ◽  
Mahdi Ghamkhari
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Control Mechanism ◽  
Power Grid ◽  
Automatic Generation ◽  
Automatic Generation Control ◽  
Power Distribution Systems ◽  
Flexible Loads ◽  
Transactive Energy ◽  
Generation Control

The automatic generation control mechanism in power generators comes into operation whenever an over-supply or under-supply of energy occurs in the power grid. It has been shown that the automatic generation control mechanism is highly vulnerable to load altering attacks. In this type of attack, the power consumption of multiple electric loads in power distribution systems is remotely altered by cyber attackers in such a way that the automatic generation control mechanism is disrupted and is hindered from performing its pivotal role. The existing literature on load altering attacks has studied implementation, detection, and location identification of these attacks. However, no prior work has ever studied design of an attack-thwarting system that can counter load altering attacks, once they are detected in the power grid. This paper addresses the above shortcoming by proposing an attack-thwarting system for countering load altering attacks. The proposed system is based on provoking real-time adjustment in power consumption of the flexible loads in response to the frequency disturbances caused by the load altering attacks. To make the adjustments in-proportion to the frequency disturbances, the proposed attack-thwarting system uses a transactive energy framework to establish a coordination between the flexible loads and the power grid operator.

scholarly journals Multiport Converter based EV Charging Station with PV and Battery

2021 ◽  
Vol 9 (VI) ◽  
pp. 2518-2521
Author(s):  
Priya A. Khobragade
Keyword(s):  
Large Scale ◽  
Power Grid ◽  
Storage System ◽  
Charging Station ◽  
Multiport Converter ◽  
Smart Charging ◽  
Fast Charging ◽  
Electrical Vehicle ◽  
Ev Charging ◽  
Fast Charging Station

: As a ecofriendly electrical vehicle, is vehicles that are used electric motor or traction motor. Are receiving widespread attention around the world due to their improved performance and zero carbon emission . The electric vehicle depend on photovoltaic and battery energy storage system . Electric vehicles include not limited road and railways. It consist of many electric appliances for use in domestic and industrial purposes that is electric car ,electric bike ,electric truck ,electric trolley bus , electric air craft ,electric space craft.The main Moto of this paper is a modelling of proposed system smart charging for electrical vehicle insuring minimum stress on power grid . The large scale development of electrical vehicle we need electric charging station for example fast charging station and super-fast charging station . During a peak demand load , large load on charging station due to the voltage sag , line fault and stress on power grid . At this all problem avoid by multiport converter based EV charging station with PV and BES by using analysis of MATLAB simulation. Result and conclusion of this paper to reduce losses improving efficiency of solar energy , no pollution (reduce) fast charging as possible as without any disturbance.

scholarly journals Frequency Regulation of Renewable Energy Integrated Deregulated Power System using Novel Optimization Scheme

2019 ◽  
Vol 8 (3) ◽  
pp. 3903-3909
Keyword(s):  
Nuclear Power ◽  
Automatic Generation ◽  
Solar Thermal ◽  
Frequency Regulation ◽  
Base Case ◽  
Thermal Plant ◽  
Area Control Error ◽  
Bilateral Transaction ◽  
Integration Of Renewables ◽  
Generation Control

The proposed work deals with the automatic generation control of a two area system under deregulated power environment. The two area system considered for analysis implements the integration of renewables into it. The system model consists of a solar thermal plant and a reheat thermal plant in area 1. The reheat thermal plant is replaced with the nuclear power plant in area 2. So the second area consists of a nuclear plant and a solar thermal plant for study. This work also deals with the application of a new controller namely the Tilted Integral Derivative controller as a secondary controller for minimizing the Area control Error (ACE) and bring it to zero. This work also proposes the implementation of a novel optimization techniqueDragonfly algorithm (DA) technique. The superiority of DA tuned TID controller was established in terms of settling time, maximum overshoot and minimum undershoot. The behaviour of the DA tuned TID controller is also tested in the new model for two different market scenarios namely the base case and the bilateral transaction. The dynamic system performance parameters are evaluated and noted. The robustness of the proposed DA tuned controller is effectively established

R() imitation learning for automatic generation control of interconnected power grids

Automatica ◽  
2012 ◽  
Vol 48 (9) ◽  
pp. 2130-2136 ◽  
Author(s):  
T. Yu ◽  
B. Zhou ◽  
K.W. Chan ◽  
Y. Yuan ◽  
B. Yang ◽  
...  
Keyword(s):  
Automatic Generation ◽  
Power Grids ◽  
Imitation Learning ◽  
Automatic Generation Control ◽  
Interconnected Power Grids ◽  
Generation Control
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