Design phasor data concentrator as adaptive delay buffer for wide-area damping control

Zhu, Kaigui; Rahimi, Saeed; Nordström, Lars; Zhang, Boming

doi:10.1016/j.epsr.2015.05.002

Cited by 13 publications

(4 citation statements)

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“…It suggested a technique to achieve better control with inefficient available measurements due to time delays, packet loss, or bandwidth constraints. Zhu et al [39] proposed a self-adaptive PDC that compensates for time delays in the communication system. Xiaorong et al [40] Explains the communication delays throughout the length of the communication system, i.e., from PMUs to synchrophasors arranged by PDC.…”

Section: Communication Technologiesmentioning

confidence: 99%

An investigation on the application and challenges for wide area monitoring and control in smart grid

2021

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The complexity and dynamics of the modern power system are continuously changing due to the penetration of a large number of renewable energy sources and changing load patterns. These growing complexities have caused numerous outages around the world, primarily due to the lack of situational awareness about the grid operating states. Rectification of this problem requires advanced sensing technology to accurately capture the dynamics of the system for better monitoring and control. Measurement of synchrophasors is a potential solution to improve situational awareness in the grid. The synchrophasors technology is now widely accepted throughout the world and has the potential to replace the existing SCADA system in monitoring and control of the power system. Their installation enables efficient resolution to substantially improve transmission system planning, maintenance, operation, and energy trading. This paper reviews the state of the art potential applications that the PMU based WAMC offers to the power system. It also includes technical perspectives, challenges, and future possibilities.

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Section: Communication Technologiesmentioning

confidence: 99%

An investigation on the application and challenges for wide area monitoring and control in smart grid

2021

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“…However, these signals are inherently subject to communication time delays which can adversely affect the performance of WAPSSs [13]. Due to the inherent reliability issues and unexpected factors related to the communication network, the wide-area signal transmission often suffers from fading and congestion, which will lead to delay and packet dropping [14].…”

Section: Introductionmentioning

confidence: 99%

The Delay-Dependent DOFC for Damping Inter-Area Low-Frequency Oscillations in an Interconnected Power System Considering Packet Loss of Wide-Area Signals

2021

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In this paper, the inter-area low-frequency oscillations are restrained in the interconnected power system by making use of the delay-dependent wide-area dynamic output feedback controller (DOFC). Modal analysis is adopted to obtain the modes of inter-area oscillation to be controlled and the Schur truncation model reduction technique is represented to reduce the order of the power system. The augmented closed-loop system model, where the transmission delay and packet loss of wide-area signals are considered, is established. The sufficient conditions of exponentially mean-square stable are obtained according to Lyapunov’s stability theory. Finally, case studies are carried out on a two-area four-machine power system, where our proposed controller, a conventional controller, and the wide-area damping controller in the existing references are installed, respectively. The simulation results under different external disturbances, packet loss rates, and delays are presented to show the effectiveness and advantages of our proposed controller.

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“…In [15], a review on existing literature in the field of PDC design and performance assessment is reported and an architecture is proposed for a PDC that implements both the absolute and relative time data pushing logics together with a third one that aims at minimizing the latency introduced by the PDC without increasing the data incompleteness, as suggested in [4]. In [16], focusing on transmission systems, a PDC with adaptive waiting time is proposed to reduce the frequency of adapting control gain in the delay-robust damping control system. In [17] an advanced PDC, designed and implemented on a real-time software platform, is proposed with the aim of enabling the monitoring of DERs in smart microgrids.…”

Section: Introductionmentioning

confidence: 99%

Active Phasor Data Concentrator performing adaptive management of latency

Castello

Sulis

2018

Sustainable Energy, Grids and Networks

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Design phasor data concentrator as adaptive delay buffer for wide-area damping control

Cited by 13 publications

References 25 publications

An investigation on the application and challenges for wide area monitoring and control in smart grid

An investigation on the application and challenges for wide area monitoring and control in smart grid

The Delay-Dependent DOFC for Damping Inter-Area Low-Frequency Oscillations in an Interconnected Power System Considering Packet Loss of Wide-Area Signals

Active Phasor Data Concentrator performing adaptive management of latency

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