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IEEE Transactions on Power Systems
Low-inertia power grids could suffer from large frequency excursions under even small power disturbances. When a voltage source converter-based high voltage direct current (VSC-HVDC) system is used to integrate a low-inertia grid into a main grid, an ...
Weiyu Wang +6 more
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Low-inertia power grids could suffer from large frequency excursions under even small power disturbances. When a voltage source converter-based high voltage direct current (VSC-HVDC) system is used to integrate a low-inertia grid into a main grid, an ...
Weiyu Wang +6 more
semanticscholar +1 more source
Frequency Trajectory Planning Based Transient Frequency Support of D-PMSG
2020 4th International Conference on HVDC (HVDC), 2020The grid connection of large-scale wind power will reduce the equivalent inertia and damping of the system, resulting in a decrease in system frequency stability. The directly-driven permanent magnet synchronous generators (D-PMSG)-based wind turbine (WT) usually uses conventional PD control to support frequency, however, the related controller ...
Hongqing Liu +3 more
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Virtual Synchronous Generator Design to Improve Frequency Support of Converter-Interfaced Systems
IEEE transactions on energy conversionThis article presents a control strategy based on the virtual synchronous generator (VSG) concept to improve the frequency support of converter-interfaced systems.
Andres E. Leon, J. Mauricio
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IEEE PES Innovative Smart Grid Technologies Conference Europe, 2021
In transition to the renewable-rich power grid, the involving system will face the challenges of loss of inertia and control paradigm change due to the retiring of synchronous machines and the fast integrating of inverter-based resources (IBRs).
Zhangxin Zhou +3 more
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In transition to the renewable-rich power grid, the involving system will face the challenges of loss of inertia and control paradigm change due to the retiring of synchronous machines and the fast integrating of inverter-based resources (IBRs).
Zhangxin Zhou +3 more
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IEEE Transactions on Power Delivery
With the increase of renewable generation in the power system, inverter-based resources will dominate the future grid. It is expected that droop-based grid forming converters (GFCs) are going to play an important role in providing frequency support in ...
Sayan Samanta, C. Lagoa, N. Chaudhuri
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With the increase of renewable generation in the power system, inverter-based resources will dominate the future grid. It is expected that droop-based grid forming converters (GFCs) are going to play an important role in providing frequency support in ...
Sayan Samanta, C. Lagoa, N. Chaudhuri
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IEEE Transactions on Power Systems, 2020
This paper proposes a two-level combined control (TLCC) scheme of voltage source converter-based multi-terminal high-voltage direct current (VSC-MTDC) integrated offshore wind farms to provide frequency support for onshore system.
Y. Xiong +7 more
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This paper proposes a two-level combined control (TLCC) scheme of voltage source converter-based multi-terminal high-voltage direct current (VSC-MTDC) integrated offshore wind farms to provide frequency support for onshore system.
Y. Xiong +7 more
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A Cell-Based Wide-Frequency-Range DLL Supporting Fast Frequency Scaling
2019 17th IEEE International New Circuits and Systems Conference (NEWCAS), 2019In this paper, we present a cell-based wide-frequency-range DLL supporting clock frequencies from 10MHz to 1GHz in 90nm. To support fast locking (during frequency scaling), we present novel architecture with a socalled “fast-locking mode” - in which the control code for the Long-Range Delay Block (LRDB) can be quickly determined in a way that the ...
Wei Chu, Shi-Yu Huang
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Aggregation Frequency Response Modeling for Wind Farms with Frequency Support Capabilities
2019 IEEE Power & Energy Society General Meeting (PESGM), 2019The high penetration wind power will count towards a significant portion of future power grid. This significant role requires wind turbine generator (WTG) to contribute to primary frequency regulation support. Consequently, it is necessary to investigate the dynamic frequency response of wind farms. In this paper, an aggregated frequency response model
Jianfeng Dai, Yi Tang, Yurong Wang
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Two-Stage Variable Proportion Coefficient Based Frequency Support of Grid-Connected DFIG-WTs
IEEE Transactions on Power Systems, 2020This paper proposes a variable proportion coefficient based control scheme for the doubly-fed induction generator based wind turbines (DFIG-WTs) to implement frequency support by regulating rotor speed.
Xiaotao Peng +4 more
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Seismic Support: Speedy Determination of Frequency
Journal of the Structural Division, 1979Seismic restraints are provided to support safety-related electrical cable trays or conduits and HVAC ductwork in nuclear power plant structures. It is shown that most of these restraints, in the form of frames, can be represented by single-degree-of-freedom models for analysis and design. Approximate formulas, based on the stiffness of the SDOF models,
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