Virtual Inertia Adaptive Control Strategy for DFIG Wind Turbines Based on the Improved Bang-Bang Control

Xie, Yan; Xie, Zhen; Chang, Yuyang; Zhang, Liusheng

doi:10.1109/ipemc-ecceasia48364.2020.9367915

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…where ∆ f ac = f ac − f acN , f ac is the real-time frequency of the power grid and f acN is the rated frequency of the power grid. Then, (11) establishes the coupling relationship between the power grid frequency and the DC voltage of MMC-HVDC, and can actively control the MMC-HVDC according to the dynamic change of the power grid frequency.…”

Section: Active Inertia Support Control Strategy Of Mmc-hvdc Systemmentioning

confidence: 99%

“…According to (11), the control block diagram of active inertia can be obtained, as shown in the Figure 3. The proposed adaptive active virtual inertia control is implemented in the receiving-end station with DC voltage control.…”

Section: Active Inertia Support Control Strategy Of Mmc-hvdc Systemmentioning

confidence: 99%

“…For a microgrid, Refs. [10,11] propose an adaptive virtual inertia control strategy and establish a small signal model to analyze the stability of the range of virtual inertia constants. However, the above research mainly focuses on the improved VSG control from the perspective of system stability enhancement.…”

Section: Introductionmentioning

confidence: 99%

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Adaptive Active Inertia Control Strategy of MMC-HVDC Systems for Flexible Frequency Support

Lv,

Wang,

Zhang

et al. 2023

Electronics

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The Modular Multilevel Converter High Voltage Direct Current Transmission (MMC-HVDC) technology is considered to be the most feasible choice for high-voltage and high-power transmission systems, and its flexibility and high controllability provide a new solution for renewable energy grid integration. The MMC topology contains a large number of capacitors, which enables it to provide a certain active inertia support for the connected AC system. Different from a synchronous machine, the active inertia control of an MMC can flexibly adjust a system’s inertia-supporting power by changing the control parameters. By introducing a variation of the Sigmoid function with amplitude-limiting capability, this paper proposes an adaptive active inertia control strategy for the MMC-HVDC system. The proposed scheme adjusts the inertia constant adaptively according to the frequency change rate of the AC system, which can better respond to the frequency recovery performance. Finally, the MMC-HVDC simulation model is established in PSCAD/EMTDC to verify the effectiveness of the proposed control strategy.

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Section: Active Inertia Support Control Strategy Of Mmc-hvdc Systemmentioning

confidence: 99%

Section: Active Inertia Support Control Strategy Of Mmc-hvdc Systemmentioning

confidence: 99%

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Adaptive Active Inertia Control Strategy of MMC-HVDC Systems for Flexible Frequency Support

Lv,

Wang,

Zhang

et al. 2023

Electronics

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“…The virtual and inherent inertial time constants of the DFIG units express as per Equation (10). Where S N is the rated capacity of a DFIG unit.…”

Section: Differential Coefficient Setting Of the P-d Algorithmmentioning

confidence: 99%

“…Where S N is the rated capacity of a DFIG unit. Substituting Equation (10) into Equation (9), and a detailed expression of the virtual inertia time constants can obtain, as shown in Equation (11). ω N is the rated rotor speed of the DFIG unit.…”

Section: Differential Coefficient Setting Of the P-d Algorithmmentioning

confidence: 99%

Wind-Storage Combined Virtual Inertial Control Based on Quantization and Regulation Decoupling of Active Power Increments

2022

Energies

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With the increasing proportion of wind turbines in power grids, they are required to have capabilities of active and efficient virtual inertial response to maintain grid frequency stability. However, the virtual inertial control methods currently used in doubly-fed induction generator (DFIG) units suffer from a secondary frequency drop (SFD) problem. Although the SFD can be inhibited by reducing the active power support strength of the DFIG units during inertia response, it will undoubtedly weaken the virtual inertia of the units. Therefore, how to eliminate the SFD while increasing the virtual inertia of the units is a worthy issue for studying. To solve this issue, a wind-storage combined virtual inertial control system based on quantization and regulation decoupling of active power increments is proposed in this paper. First, by setting the parameters of a proportional–differential (P-D) algorithm, the total active power increments required for virtual inertial response are quantified at the DFIG level. Secondly, a curve-shifting method based on the rate of change of frequency is adopted to adjust the active power output of the DFIG units. Finally, a battery energy storage system (BESS) is used to compensate for the power shortages of the units according to the quantized value of the active power increments. Simulations show that the control method can not only eliminate SFD but also effectively increase the system’s virtual inertia.

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CHB-STATCOM Implemented with an Improved Virtual Synchronous Machine Controller with Adaptive Virtual Inertia

Mohanty,

Das,

Singh

2023

2023 9th IEEE India International Conference on Power Electronics (IICPE)

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Virtual Inertia Adaptive Control Strategy for DFIG Wind Turbines Based on the Improved Bang-Bang Control

Cited by 3 publications

References 2 publications

Adaptive Active Inertia Control Strategy of MMC-HVDC Systems for Flexible Frequency Support

Adaptive Active Inertia Control Strategy of MMC-HVDC Systems for Flexible Frequency Support

Wind-Storage Combined Virtual Inertial Control Based on Quantization and Regulation Decoupling of Active Power Increments

CHB-STATCOM Implemented with an Improved Virtual Synchronous Machine Controller with Adaptive Virtual Inertia

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