scholarly journals An Extended System Frequency Response Model Considering Wind Power Participation in Frequency Regulation

Energies ◽  
2017 ◽  
Vol 10 (11) ◽  
pp. 1797 ◽  
Author(s):  
Yi Tang ◽  
Jianfeng Dai ◽  
Jia Ning ◽  
Jie Dang ◽  
Yan Li ◽  
...  
Keyword(s):  
Frequency Response ◽  
Wind Power ◽  
Frequency Regulation ◽  
Response Model ◽  
Extended System ◽  
System Frequency

A low-order system frequency response model

1990 ◽  
Vol 5 (3) ◽  
pp. 720-729 ◽  
Author(s):  
P.M. Anderson ◽  
M. Mirheydar
Keyword(s):  
Frequency Response ◽  
Order System ◽  
Response Model ◽  
System Frequency ◽  
Low Order

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.

Participation of large-scale wind power generation in power system frequency regulation

2013 ◽  
Vol 58 (36) ◽  
pp. 4557-4565 ◽  
Author(s):  
HaiShun Sun ◽  
Ju Liu ◽  
JinYu Wen ◽  
ShiJie Cheng ◽  
Cheng Luo ◽  
...  
Keyword(s):  
Power Generation ◽  
Power System ◽  
Wind Power ◽  
Large Scale ◽  
Wind Power Generation ◽  
Frequency Regulation ◽  
System Frequency

scholarly journals An Analytical Method for Estimating the Maximum Penetration of DFIG Considering Frequency Stability

2020 ◽  
Vol 12 (23) ◽  
pp. 9850
Author(s):  
Mengqi Qing ◽  
Fei Tang ◽  
Fusuo Liu ◽  
Dichen Liu ◽  
Nianchun Du ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Wind Power ◽  
Analytical Method ◽  
Frequency Stability ◽  
Wind Generation ◽  
Induction Generator ◽  
Frequency Regulation ◽  
Doubly Fed Induction Generator ◽  
Doubly Fed ◽  
System Frequency

With the increasing wind power in power systems and the wide application of frequency regulation technology, the accurate calculation of the limit wind power capacity in systems is critical to ensure the stability of the frequency and guide the planning of wind power sources. This paper proposes an analytical method for calculating the maximum wind generation penetration under the constraints of frequency regulation control and frequency stability taking doubly fed induction generator as an example. Firstly, the frequency-domain dynamic model of the doubly fed induction generator is established considering the supplementary frequency proportion-differentiation control under small disturbance. The equivalent inertia time constant of the doubly fed induction generator is calculated. On this basis, the frequency response model of the power system with the consideration of wind power integration in frequency regulation control is constructed. Then, the frequency-domain analytical solution of the system frequency is obtained. Finally, with the constraint by the steady-state deviation and dynamic change rate of the system frequency, the maximum wind generation penetration is analytically solved. The accuracy of the proposed analytical calculation method for the limit value of the percentage of wind power is verified by MATLAB/Simulink.

scholarly journals Coordinated Sending-End Power System Frequency Regulation via UHVDC

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 1909
Author(s):  
Qiaoming Shi ◽  
Hongqing Liu ◽  
Kai Liu ◽  
Yongping Wang ◽  
Qingwu Zhang ◽  
...  
Keyword(s):  
Frequency Response ◽  
Operating Conditions ◽  
Frequency Deviation ◽  
Frequency Regulation ◽  
Control Parameters ◽  
Response Control ◽  
Response Characteristics ◽  
Frequency Response Characteristics ◽  
System Frequency ◽  
Inertia Response

The continuous improvement of new energy penetration reduces the inertia of the system, which leads to the frequency deviation and the rate of change of frequency (RoCoF) being easily exceeded. To improve the frequency stability of sending-end power systems with large-scale renewable energy access via ultra-high voltage direct current (UHVDC), the coordinated frequency control for UHVDC participating in system frequency regulation (FR) including primary FR and system inertial response is presented. Based on the simplified system model, the mechanism of UHVDC participation in system frequency support and its influence on receiving-end system frequency response characteristics are analyzed. Compared with the inertia response and primary FR of traditional synchronous generators, the parameter calculating method of UHVDC coordinated frequency response control is proposed. Based on the system root trajectory analysis, the influence of the frequency response control parameters on the sending-end system’s stability is analyzed, and the constraints of UHVDC participating in the system frequency response control are analyzed. Then, based on the RTDS verification platform containing the Lingshao ±800 kV UHVDC control and protection system, the system frequency response characteristics under different control strategies, operating conditions and control parameters are verified and analyzed. The experimental results show that the UHVDC frequency coordinated control can effectively increase the equivalent inertia of the sending-end system, restrain the RoCoF and the frequency deviation, and increase the FR capability of the UHVDC system.

"Simulation of an Isolated Wind Power System with Battery Energy Storage and Dump Load"

2018 ◽  
Author(s):  
Rafael Sebastián ◽  
Jerónimo Quesada
Keyword(s):  
Energy Storage ◽  
Power System ◽  
Wind Power ◽  
Dynamic Models ◽  
Active Power ◽  
Frequency Regulation ◽  
Battery Energy Storage ◽  
Wind Power System ◽  
Battery Energy ◽  
System Frequency

"This study presents the modelling and dynamic simulation of an Isolated Wind Power System (IWPS) consisting of a Wind Turbine Generator (WTG), a synchronous machine (SM), consumer load, dump load (DL) and a Battery Energy Storage System (BESS). First the IWPS architecture and the dynamic models of the IWPS components are described. Second, the control requirements for frequency regulation of the IWPS are studied and a PID regulator to govern the active power stored+dumped by the BESS+DL combination or supplied by the BESS along with a power sharing algorithm between the BESS and DL is presented. Finally the IWPS is simulated facing to variations to load and WTG power. The simulation results are given showing graphs of the main electrical variables in the IWPS: system frequency and voltage and active power in each component. The results show how the BESS or BESS+DL combination regulates correctly the isolated system frequency. The results also show that the BESS improves the IWPS reliability when compared with the frequency control obtained using only the DL."

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