Application of Plug-In Electric Vehicles and Controllable Loads to Frequency Regulation

2012 ◽  
Vol 588-589 ◽  
pp. 1640-1643
Author(s):  
Shu Lei Deng ◽  
Bao Ping Liu ◽  
An Jun Li ◽  
Xiong Zhou ◽  
Yu Xiang Huang
Keyword(s):  
Renewable Energy ◽  
Feedback Control ◽  
Power Systems ◽  
Electric Vehicles ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Frequency Regulation ◽  
Battery Charging ◽  
Vehicle To Grid ◽  
Simulation Results

High renewable energy penetration in power systems may bring a series of problems such as frequency fluctuations. Plug-in electric vehicles (PEVs) and controllable loads have been shifting into focus for this. A dynamic vehicle-to-grid (V2G) model with feedback control is proposed by considering the battery charging/discharging characteristics and the dynamic model of frequency regulation with PEVs and controllable loads for a single area is established. Simulation results demonstrate that the application of PEVs and controllable loads can relief the frequency refutation due to the randomness of renewable energy sources.

Design and Analysis of a Power Transmission Network Model of Electric Vehicle

2016 ◽  
Vol 693 ◽  
pp. 45-52
Author(s):  
L.H. Liu
Keyword(s):  
Renewable Energy ◽  
Energy Distribution ◽  
Electric Vehicles ◽  
Power Transmission ◽  
Renewable Energy Sources ◽  
Operation Mode ◽  
Distribution Network ◽  
Linear Constraints ◽  
Energy Sources ◽  
Vehicle To Grid

Fossil energy is increasing depletion, renewable energy sources plays an important role in our life and Vehicle-to-Grid (V2G) is proved to be feasible. Electric Vehicles (EVs) can not only store energy, but also can be used as a medium between the battery energy stored in EVs and the power grid through Vehicle-to-Grid (V2G). And then, the energy in the batteries of electric vehicles can move with EVs. This paper introduces an energy distribution network, which is consisting of EVs, charge stations and renewable energy sources. After analyzing the characteristics of energy distribution network, we introduce a new commercial operation mode called mobile electrical grid, which is compared with the integrated grids. To calculate the life cycle energy loss for this novel operation mode, a mathematical model is developed, and then what we have deduced is demonstrated to be a lasso optimization problem with linear constraints, which is convex.

Electric vehicles and smart grid interaction: A review on vehicle to grid and renewable energy sources integration

2014 ◽  
Vol 34 ◽  
pp. 501-516 ◽  
Author(s):  
Francis Mwasilu ◽  
Jackson John Justo ◽  
Eun-Kyung Kim ◽  
Ton Duc Do ◽  
Jin-Woo Jung
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Electric Vehicles ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Vehicle To Grid

Asynchronous Method for Frequency Regulation by Dispersed Plug-in Electric Vehicles

2018 ◽  
Vol 19 (3) ◽  
Author(s):  
Yonghong Kuang ◽  
Canbing Li ◽  
Bin Zhou ◽  
Yijia Cao ◽  
Hanyu Yang ◽  
...  
Keyword(s):  
Power Systems ◽  
Electric Vehicles ◽  
Electric Power Systems ◽  
Frequency Regulation ◽  
Vehicle To Grid ◽  
Electrical Vehicles ◽  
Asynchronous Method ◽  
Control Centre ◽  
Electrical Vehicle ◽  
Simulation Results

Abstract:Plug-in electrical vehicles (PEVs) can participate in frequency regulation (FR) in electric power systems under the framework of vehicle-to-grid (V2G) technology. With a growing number of electrical vehicles (EVs), a greater number of distributed electrical vehicle (EV) chargers may change charge or discharge power simultaneously to participate in FR, resulting in over response. In this paper, considering the over-response and equality issues, an asynchronous method for dispersed PEVs participation in FR is proposed. PEVs participate in FR with the same set of parameters. Over-response can be avoided during the process of FR. Equality enables the dispersed PEVs to participate in FR with the same probability. The presented method empowers PEVs to actively participate in FR without a control centre or a communication network. Simulation results demonstrate the validity of the presented method in different operational scenarios.

scholarly journals Automatic Synchronverter: Inverter Lacking a Devoted Synchronization Unit

2018 ◽  
Vol 7 (2.25) ◽  
pp. 20
Author(s):  
S Manoj ◽  
S Pradeep Kumar ◽  
N Ashok Babu
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Reactive Power ◽  
Renewable Energy Sources ◽  
Voltage Regulation ◽  
Energy Sources ◽  
Frequency Regulation ◽  
Reference Frequency ◽  
Ac Converters ◽  
Synchronization Unit

The design of self-synchronized synchronverter is made by removing the keen synchronization unit. Synchronization with the grid takes place before connection and it will track the grid frequency after connection. Like the original synchronverter it functions in various modes to deliver the grid frequency as the reference frequency. The functions of frequency regulation, voltage regulation, real and reactive power control are maintained. Moreover, it can share the real power and reactive power accurately. Distributed energy sources delivers the major contribution to the power system operation. Generally the renewable sources are non-linear and uncontainable. Majority of renewable energy sources were associated to power systems through dc/ac converters. For this kind of application synchronizing the inverter with the grid is necessary before and after the connections to be made. It is one of the biggest challenges. So synchronverter is designed to deliver a scheme for power systems to regulate the renewable energy connected to the grid and enables smart grid integration. 

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