Research on frequency inertia response control strategy of SCESS‐DFIG system considering variable wind speed

Sun, Dongyang; Sun, Li; Wu, Fengjiang; Zhang, Lei; Geng, Wenjing; Peng, Jing; Liu, Fengming

doi:10.1049/joe.2018.8504

Cited by 5 publications

(6 citation statements)

References 11 publications

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“…This design can greatly optimize the economy of energy storage device assisting wind power system in participating in power grid frequency modulation. According to (Sun et al, 2019;Yan et al, 2020), the summary and topology analysis are summarized. Figure 1 and Figure 1 shows the comparison of investment in cooperative frequency modulation between wind power plants (100 MW, cost about 760 million CNY¥) and energy storage systems (8 MW × 30 min) under different architectures.…”

Section: Frontiers In Energy Researchmentioning

confidence: 99%

“…Optimize the economy of civil engineering, communication system and other supporting facilities: as shown in Figure 1, the investment costs required under different combined wind storage architectures are summarized according to (Sun et al, 2019;Yan et al, 2020). Since each doubly-fed wind turbine has an independent energy storage device, the DC converter control circuit and dual PWM control circuit can be integrated in a single control board to achieve a highly integrated design of wind storage control.…”

Section: Frontiers In Energy Researchmentioning

confidence: 99%

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Research on multi-energy cooperative participation of grid frequency inertia response control strategy for energy storage type doubly-fed wind turbine considering wind speed disturbance

et al. 2023

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With the proposal of carbon peaking and carbon neutralization, the penetration rate of wind power generation continues to increase. This paper focuses on the problem that doubly fed induction wind turbines are vulnerable to input “source” disturbances and have weak frequency modulation ability, which reduces the stability of the power grid. Based on the structural model of energy storage system embedded in doubly fed wind power generation system, it is compared the ability of super capacitor energy storage and releasing rotor kinetic energy to provide inertia response power and energy, and the feasibility of multi-energy coordinated inertia response is analyzed. Based on the inertia time constant of conventional synchronous generator set, the inertia time constant and actual inertia constant of energy storage doubly fed wind power generation system under variable wind speed are defined. An extended state observer is used to estimate the change of captured mechanical power caused by the change of wind speed, and a control strategy for doubly fed induction generator with super capacitor to participate in power grid frequency regulation is designed. Finally, considering the aggregation of wind power and the difference of the state of charge during the operation of distributed energy storage, the 3*3*3 wind farm model is established using Matlab/Simulink simulation software. The feasibility and advantages of the frequency modulation control strategy proposed in this paper are verified by building a power grid frequency modulation simulation involving wind farms and traditional generators.

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Section: Frontiers In Energy Researchmentioning

confidence: 99%

Section: Frontiers In Energy Researchmentioning

confidence: 99%

Research on multi-energy cooperative participation of grid frequency inertia response control strategy for energy storage type doubly-fed wind turbine considering wind speed disturbance

et al. 2023

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“…Zeroing the frequency changes and the power flows between the areas are the most important issues in LFC. To date, various control methods have been proposed for the LFC problem to bring the system to the desirable performance, including model-based predictive control (MPC) [1,2], neural networks [3,4], sliding mode control (SMC) [5,6], fuzzy logic control [7,8], optimal control [9,10], adaptive control algorithm [11,12], robust control [13] and fractional order control [14]. As MPC has many advantages such as fast response, resistance to load disturbances, and parameter uncertainties, this con-troller has been widely recognized as a high-performance and practical control technology in LFC of power systems.…”

Section: Introductionmentioning

confidence: 99%

Fault tolerant load frequency sharing of a multi‐area power system using model predictive control

Saadatinezhad

Ramezani

Alizadeh

et al. 2021

The Journal of Engineering

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This paper focuses on the load frequency control (LFC) problem in a four-area interconnected power system with tie-line failures. As opposed to the traditional robust-based configuration techniques, which consider the operating parameters modify within a small range, physical failures may lead to critical structural or parametric changes in the LFC system. Consequently, a system parameter-free fault-tolerant model-based predictive control (FTMPC) strategy for LFC is proposed to address the problem. Multiple steps are taken to achieve load frequency control as follows. First, the system is designed to operate normally with each of the three model-based predictive controls (MPCs), namely centralized, decentralized, and distributed in the same conditions. Next, a tie-line disconnection fault is added to this system, which changes the configuration of the previously distributed power system. The new configuration depends on the tie-line that is disconnected. Furthermore, the performance of centralized, decentralized, and distributed MPCs have been compared to each other in different tie-line disconnections. A new controller is required to maintain reliability and performance in the presence of the fault. Thus, in the final step, an FTMPC is proposed, which has shown acceptable performance in various tie-line disconnections. The efficacy of the proposed method is verified via numerical simulations.

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“…It also provides a new idea for coordinating the DFIG and energy storage to participate in frequency regulation. In [18][19][20][21][22][23][24], energy storages and rotor kinetic energy were coordinated as the inertial source to improve the frequency dynamic response capability of DFIG. As for the selection of energy storage, a supercapacitor [18][19][20], battery [21][22][23], and hydrogen energy storage [24] can all be used as inertia sources to coordinate with the DFIG.…”

Section: Introductionmentioning

confidence: 99%

“…As for the selection of energy storage, a supercapacitor [18][19][20], battery [21][22][23], and hydrogen energy storage [24] can all be used as inertia sources to coordinate with the DFIG. In terms of the coordination control strategy, [19] adopted the fuzzy logic controller to realize the inertia response of the DFIG under variable wind speeds; [20] used cascading control strategy to coordinate the rotor kinetic energy and battery, thus achieving the short-time inertia support of the DFIG under full wind speed; [21] explored the inertial response capability of a battery-embedded DFIG and used it to provide power support in synchronous, supersynchronous, and subsynchronous operations; [22] utilized an adaptive fuzzy control to achieve the inertia support of the DFIG under full wind speed; and [24] adopted a torque limit strategy to control rotor kinetic energy and participate in frequency regulation, and utilized a battery to solve the secondary frequency drop caused by the torque limit control. Although the above studies [18][19][20][21][22][23][24] all improved the DFIG inertia support capacity in a short-time, none of them studied the application of an energy storage device in long-term power support and primary frequency regulation.…”

Section: Introductionmentioning

confidence: 99%

Inertia and Droop Frequency Control Strategy of Doubly-Fed Induction Generator Based on Rotor Kinetic Energy and Supercapacitor

Yan

Sun

2020

Energies

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The large-scale application of wind power eases the shortage of conventional energy, but it also brings great hidden danger to the stability and security of the power grid because wind power has no ability for frequency regulation. When doubly-fed induction generator (DFIG) based wind turbines use rotor kinetic energy to participate in frequency regulation, it can effectively respond to frequency fluctuation, but has the problems of secondary frequency drop and output power loss. Furthermore, it cannot provide long-term power support. To solve these problems, a coordinated frequency control strategy based on rotor kinetic energy and supercapacitor was proposed in this paper. In order to ensure the DFIG provides fast and long-term power support, a supercapacitor was used to realize the droop characteristic, and rotor kinetic energy was used to realize the inertia characteristic like synchronous generator (SG). Additionally, the supercapacitor is also controlled to compensate for the power dip of the DFIG when rotor kinetic energy exits inertia support to avoid secondary frequency drop. Additionally, a new tracking curve of DFIG rotor speed and output power was adopted to reduce the power loss during rotor speed recovery.

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Research on frequency inertia response control strategy of SCESS‐DFIG system considering variable wind speed

Cited by 5 publications

References 11 publications

Research on multi-energy cooperative participation of grid frequency inertia response control strategy for energy storage type doubly-fed wind turbine considering wind speed disturbance

Research on multi-energy cooperative participation of grid frequency inertia response control strategy for energy storage type doubly-fed wind turbine considering wind speed disturbance

Fault tolerant load frequency sharing of a multi‐area power system using model predictive control

Inertia and Droop Frequency Control Strategy of Doubly-Fed Induction Generator Based on Rotor Kinetic Energy and Supercapacitor

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