Time latency compensation for wide area damping controller

Sharma, Archi; Sahu, Binod Kumar; Triphathy, N. P.; Nagar, L. K.; Patidar, N. P.

doi:10.1109/poweri.2014.7117609

Cited by 3 publications

(7 citation statements)

References 13 publications

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“…Despite being considerably faster than SCADA systems, when using WAMS-based control systems for real-time applications, communication delays and/or failures may lead to instabilities or system blackouts. In fact, time-delay caused by transmission of global signals is one of the key factors influencing system stability and damping performance [78], [79], [80]. Usually, time-delays related to communications in WAMS vary from tens to several hundred milliseconds [78], [79], [81].…”

Section: B Measurement and Communication Systemsmentioning

confidence: 99%

“…In fact, time-delay caused by transmission of global signals is one of the key factors influencing system stability and damping performance [78], [79], [80]. Usually, time-delays related to communications in WAMS vary from tens to several hundred milliseconds [78], [79], [81]. The exact value depends on the type of communication link, communication network length, network bandwidth, communication load, and transmission protocol, among other factors [79], [81].…”

Section: B Measurement and Communication Systemsmentioning

confidence: 99%

“…Table 1 summarizes the total number of works included in the database. In total, 181 papers were found using the aforementioned search criteria ( [44], [45], [49], [55], [56], [57], [58], [59], [60], [61], [62], [64], [65], [66], [67], [68], [73], [78], [80], [81], [90], [96], [104], [105], [106], [107], [108], [109], [110], [111], [112], [113], [114], [115], [116], [117], [118], [119], [120], [121], [122], [123], [124], [125], [126], [127], [128], [129],…”

Section: Classification Of Control Strategiesmentioning

confidence: 99%

“…From the 65 works reviewed, most of them present strategies to damp inter-area oscillations or to improve rotorangle stability. Specifically, 16 papers address inter-area oscillations [78], [81], [115], [122], [125], [130], [151], [179], [182], [193], [199], [227], [236], [238], [241], [248] and 15 papers address rotor-angle stability [137], [139], [161], [166], [180], [204], [206], [207], [210], [213], [216], [218], [219], [231], [233]. From the remaining 34 papers, 7 address frequency stability issues [127], [146], [150], [168], [235], [237], [257] and 10 papers address voltage stability [55], [149], [152], [184], [191], [194], [201], [244],…”

Section: ) Centralized Controlmentioning

confidence: 99%

“…This approximation reduces a time-delayed system to one with a rational transfer function, thus allowing its use for stability analysis and design of controllers for delayed systems [265]. Most strategies rely on low-order Padé approximations [61], [67], [78], [119], [131], [145], [157], [186], [193], [199], [200], where first-order approximations are developed. Second-order approximations are considered in [73], [108], [123], [134], [135], [156], [169], [185], where [169] refers to a particularly modified second-order approximation.…”

Section: ) Time-delay Compensation Techniquesmentioning

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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