Critical evaluation of power system stability enhancement in the future GB transmission using an embedded HVDC link

Kerahroudi, Shadi Khaleghi; Liu, Fan; Bradley, Michael P.; Ma, Zengwei; Alamuti, Mohsen Mohammadi; Rabbani, Ronak; Abbod, Maysam F.; Taylor, Gareth

doi:10.1049/cp.2015.0066

Cited by 2 publications

(5 citation statements)

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“…Hence, plenty of control strategies have been developed with HVDC-links as main controllable devices, especially for addressing transient rotor-angle stability and inter-area oscillations issues. Most works rely purely on HVDC-links, as in [49], [106], [107], [115], [121], [133], [138], [142], [154], [155], [159], [161], [175], [182], [187], [213], [221], [222], [238], and [254]. However, in practical large-scale interconnected systems, there are usually various interarea oscillation modes with various oscillation shapes that act together and endanger the stable and secure operation of power systems.…”

Section: ) Hvdc-linkmentioning

confidence: 99%

“…Nevertheless, such optimizations assume a noiseless and fully observable system, which is unrealistic in real-world power systems, even with WACS. To cope with this issue, [80], [155], [156], [157], [162] propose an LQG approach that considers Gaussian noise in system variables as well as in the output, and assumes that the full system state may not be observable. The work in [235] relies on simpler optimization methods due to real-time computation time constrains, driving a real-time optimization process by converting the system's non-linear constraints into a linear matrix inequality.…”

Section: ) Traditional Controlmentioning

confidence: 99%

“…Among the works that considered complex large-scale power systems or field tests are [49], [121], [155], [164], [223], [225], and [234].…”

Section: E Simulated Power Systemsmentioning

confidence: 99%

“…The WECC model was adapted from a 31,419-buses, 4,063-generators model, specifically developed and validated by WECC. In [155], system's stability is investigated using a high-fidelity future Great Britain system model in PowerFactory, which consist of 5,328 busbars, 7,801 transmission lines, and 220 synchronous generators. The approach in [164] was tested on a practical 437-machine, 2,791-node power system, based on the interconnected Northern and the Northeastern power grids of China.…”

Section: E Simulated Power Systemsmentioning

confidence: 99%

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Review of Wide-Area Controllers for Supporting Power System Stability

et al. 2023

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Countries around the world are transitioning from conventional power systems dominated by synchronous generators towards low-carbon resources, characterized by high levels of converter-interfaced generators (CIGs). With this transformation, hundreds or even thousands of fast power electronic devices will be added to the grid as CIG penetration increases, thus making the system dynamic response progressively faster and more complex. This future scenario poses significant challenges in power system stability and control. To sustain power system stability in future power systems and achieve a seamless transition, we need to depart from current control practices based on decentralized and stand-alone local control actions and begin to explore new methods. A promising technology to overcome control complexities and underlying stability issues in future low-inertia power systems are wide area control (WAC). Within this technology, the control is no longer based on a purely localized tasks but rather a set of coordinated actions across wide areas in which interplant communication plays a key role. This paper presents the state of the art of existing research efforts in the field of WAC strategies for maintaining stability in large-scale low-inertia power systems of the future. We present different WAC solutions that have been put forward hitherto, we put these control strategies into context, classify them, and finally relate them to each other. We also raise open questions and challenges that need to be addressed in order to ensure a secure transition towards power systems dominated by CIGs. INDEX TERMS Power system control, power system stability, time delays, telecommunication issues, widearea measurement systems (WAMSs), wide-area power systems (WAPSs), wide-area control (WAC), power system control architecture, control techniques.

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Section: ) Hvdc-linkmentioning

confidence: 99%

Section: ) Traditional Controlmentioning

confidence: 99%

“…Among the works that considered complex large-scale power systems or field tests are [49], [121], [155], [164], [223], [225], and [234].…”

Section: E Simulated Power Systemsmentioning

confidence: 99%

Section: E Simulated Power Systemsmentioning

confidence: 99%

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Review of Wide-Area Controllers for Supporting Power System Stability

et al. 2023

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“…In GB, the target of this proposed legislation was the reduction of carbon dioxide emission by a minimum of 27% by 2020, a reduction of 90% in the carbon intensity from energy generation by 2030 [3] as well as final target of 80% for 2050 [4]. Along with deploying clean energy technologies, there is also a great requirement for improving the energy usage efficiency [5], i.e., using less energy to deliver the same service.…”

Section: Introductionmentioning

confidence: 99%