Distributed hierarchical control of multi-area power systems with improved primary frequency regulation

2012 ◽  
Author(s):  
Jianming Lian ◽  
Laurentiu Marinovici ◽  
Karanjit Kalsi ◽  
Pengwei Du ◽  
Marcelo Elizondo
Keyword(s):  
Power Systems ◽  
Hierarchical Control ◽  
Frequency Regulation ◽  
Primary Frequency

scholarly journals Evaluation of DFIGs’ Primary Frequency Regulation Capability for Power Systems with High Penetration of Wind Power

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6178
Author(s):  
Changgang Li ◽  
Zhi Hang ◽  
Hengxu Zhang ◽  
Qi Guo ◽  
Yihua Zhu ◽  
...  
Keyword(s):  
Power Systems ◽  
Wind Power ◽  
Frequency Control ◽  
Frequency Regulation ◽  
Continuous Increase ◽  
Factors Affecting ◽  
Doubly Fed ◽  
Primary Frequency ◽  
Regulation Model ◽  
System Frequency

Accompanying the continuous increase in wind power penetration, the power system inertia is reduced, and the system frequency regulation performance deteriorates. Wind turbine generators are required to participate in primary frequency regulation (PFR) to support system frequency. Here, the PFR capability of the widely-used doubly-fed induction generator (DFIG) is evaluated to estimate the participation of the DFIG in system frequency control. The frequency regulation model of the DFIG is established and briefly discussed. The equivalent PFR droop coefficient is then deduced from the model using a small signal increment method to evaluate the DFIG’s PFR capability. Key factors affecting the equivalent droop coefficient are studied, and the droop control is optimized to keep the equivalent droop coefficient in the desired range. The proposed method is verified utilizing a provincial power grid model of China.

Research and Optimization of Thermal Power Unit's Automatic Control Based on Frequency Regulation Ability of Power Grid

2013 ◽  
Vol 330 ◽  
pp. 606-610 ◽  
Author(s):  
Jun Li ◽  
Wei Wei Li
Keyword(s):  
Power Systems ◽  
Automatic Control ◽  
Power Grid ◽  
Thermal Power ◽  
Optimal Operation ◽  
Theory And Practice ◽  
Frequency Regulation ◽  
Frequency Compensation ◽  
The Stability ◽  
Primary Frequency

Wind power and other new energy connected to power grid bring new challenges to optimal operation of power systems. The stability of power grid mainly depends on primary frequency compensation and secondary frequency compensation of thermal power units. By analyzing the theory and practice of DEH and coordinated control system (CCS) of thermal power units, combined with the insufficient of actual primary frequency compensation and automatic power generation control (AGC) strategy response to frequency of accidents, the optimization of primary frequency compensation and AGC of thermal power units automatic control were offered. The practical application results show that the proposed control strategy can effectively control the thermal power units to achieve the stability of power grid frequency.

Influence of direct air-cooled units on primary frequency regulation in power systems

2017 ◽  
Vol 11 (17) ◽  
pp. 4365-4372 ◽  
Author(s):  
Yufeng Guo ◽  
Dongrui Zhang ◽  
Jie Wan ◽  
Daren Yu
Keyword(s):  
Power Systems ◽  
Frequency Regulation ◽  
Primary Frequency

Hierarchical Control of Residential HVAC Units for Primary Frequency Regulation

2018 ◽  
Vol 9 (4) ◽  
pp. 3844-3856 ◽  
Author(s):  
Xiaoyu Wu ◽  
Jinghan He ◽  
Yin Xu ◽  
Jian Lu ◽  
Ning Lu ◽  
...  
Keyword(s):  
Hierarchical Control ◽  
Frequency Regulation ◽  
Primary Frequency

scholarly journals Modeling Vehicles to Grid as a Source of Distributed Frequency Regulation in Isolated Grids with Significant RES Penetration

Energies ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 720 ◽  
Author(s):  
Neofytos Neofytou ◽  
Konstantinos Blazakis ◽  
Yiannis Katsigiannis ◽  
Georgios Stavrakakis
Keyword(s):  
Power Systems ◽  
Electric Vehicles ◽  
Renewable Energy Sources ◽  
Rapid Development ◽  
Frequency Regulation ◽  
Charging Station ◽  
Battery Capacity ◽  
Regulation Services ◽  
Primary Frequency ◽  
The Impact

The rapid development of technology used in electric vehicles, and in particular their penetration in electricity networks, is a major challenge for the area of electric power systems. The utilization of battery capacity of the interconnected vehicles can bring significant benefits to the network via the Vehicle to Grid (V2G) operation. The V2G operation is a process that can provide primary frequency regulation services in the electric network by exploiting the total capacity of a fleet of electric vehicles. In this paper, the impact of the plug-in hybrid electric vehicles (PHEVs) in the primary frequency regulation is studied and the effects PHEVs cause in non-interconnected isolated power systems with significant renewable energy sources (RES) penetration. Also it is taken into consideration the requirements of users for charging their vehicles. The V2G operation can be performed either with fluctuations in charging power of vehicles, or by charging or discharging the battery. So an electric vehicle user can participate in V2G operation either during the loading of the vehicle to the charging station, or by connecting the vehicle in the charging station without any further demands to charge its battery. In this paper, the response of PHEVs with respect to the frequency fluctuations of the network is modeled and simulated. Additionally, by using the PowerWorld Simulator software, simulations of the isolated power system of Cyprus Island, including the current RES penetration are performed in order to demonstrate the effectiveness of V2G operation in its primary frequency regulation.

A Robust Control Approach for Primary Frequency Regulation through Variable Speed Wind Turbines

2010 ◽  
Vol 130 (11) ◽  
pp. 1002-1009 ◽  
Author(s):  
Jorge Morel ◽  
Hassan Bevrani ◽  
Teruhiko Ishii ◽  
Takashi Hiyama
Keyword(s):  
Robust Control ◽  
Wind Turbines ◽  
Frequency Regulation ◽  
Variable Speed ◽  
Control Approach ◽  
Primary Frequency
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