Design of the Pacific DC Intertie Wide Area Damping Controller

Pierre, Brian J.; Wilches-Bernal, Felipe; Schoenwald, David A.; Elliott, Ryan Thomas; Trudnowski, Daniel; Byrne, Raymond H.; Neely, Jason C.

doi:10.1109/tpwrs.2019.2903782

Cited by 69 publications

(33 citation statements)

References 21 publications

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“…This range is reflective of systems that utilize fiber-optic communication. It aligns closely with the experimental results reported in [10], 69-113 ms, but may vary depending on the communication method employed, e.g., wired vs. wireless. Here we evaluate scenarios with delays that are 5 to 10 times greater than the high end of this range.…”

Section: Co-simulation Of Power and Communication Systemssupporting

confidence: 90%

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A Generalized PSS Architecture for Balancing Transient and Small-Signal Response

Elliott

Arabshahi

Kirschen

2020

IEEE Trans. Power Syst.

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For decades, power system stabilizers paired with high initial response automatic voltage regulators have served as an effective means of meeting sometimes conflicting system stability requirements. Driven primarily by increases in power electronically-coupled generation and load, the dynamics of largescale power systems are rapidly changing. Electric grids are losing inertia and traditional sources of voltage support and oscillation damping. The system load is becoming stiffer with respect to changes in voltage. In parallel, advancements in wide-area measurement technology have made it possible to implement control strategies that act on information transmitted over long distances in nearly real time. In this paper, we present a power system stabilizer architecture that can be viewed as a generalization of the standard ∆ω-type stabilizer. The control strategy utilizes a real-time estimate of the center-of-inertia speed derived from wide-area measurements. This approach creates a flexible set of trade-offs between transient and small-signal response, making synchronous generators better able to adapt to changes in system dynamics. The phenomena of interest are examined using a two-area test case and a reduced-order model of the North American Western Interconnection. To validate the key findings under realistic conditions, we employ a state-of-theart co-simulation platform to combine high-fidelity power system and communication network models. The benefits of the proposed control strategy are retained even under pessimistic assumptions of communication network performance.

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Section: Co-simulation Of Power and Communication Systemssupporting

confidence: 90%

“…Elliott.) real time [7]- [10]. Despite the proliferation of inverter-coupled resources, it is projected that synchronous generation will account for a significant fraction of the capacity of large-scale power systems for decades to come [11].…”

Section: Introductionmentioning

confidence: 99%

A Generalized PSS Architecture for Balancing Transient and Small-Signal Response

Elliott

Arabshahi

Kirschen

2020

IEEE Trans. Power Syst.

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“…Contemporary PMU networks are technologically capable of enabling this estimation; however, logistical challenges remain. For instance, operating entities may be disinclined to use wide‐area measurements recorded outside of their service territory for real‐time control [40]. The reasons for this are mostly related to policy compliance and cybersecurity [41].…”

Section: Proposed Methodsmentioning

confidence: 99%

Stabilising transient disturbances with utility‐scale inverter‐based resources

Elliott

Arabshahi

Kirschen

2020

IET gener. transm. distrib.

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This study presents a trajectory tracking control strategy that modulates the active power injected by geographically distributed inverter-based resources to support transient stability. Each resource is independently controlled, and its response drives the local bus voltage angle towards a trajectory that tracks the angle of the centre-of-inertia. The centre-of-inertia angle is estimated in real time from wide-area measurements. The main objectives are to stabilise transient disturbances and increase the amount of power that can be safely transferred over key transmission paths without loss of synchronism. Here the authors envision the actuators as utility-scale energy storage systems; however, equivalent examples could be developed for partiallycurtailed photovoltaic generation and/or Type 4 wind turbine generators. The strategy stems from a time-varying linearisation of the equations of motion for a synchronous machine. The control action produces synchronising torque in a special reference frame that accounts for the motion of the centre-of-inertia. This drives the system states toward the desired trajectory and promotes rotor angle stability. For testing, a reduced-order dynamic model of the North American Western Interconnection is employed. The results show that this approach improves system reliability and can increase capacity utilisation on stabilitylimited transmission corridors.

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“…Owing to the development of the wide-area measurement system (WAMS), remote signals are able to be used as the feedback signals to design wide-area damping controllers (WADCs) for selected flexible ac transmission system (FACTS) devices or generator exciters to enhance the damping of the inter-area oscillations [3][4][5]. The availability of remote signals can overcome the shortcoming of lacking observability of inter-area mode from those local signals based controllers [6][7][8][9]. Because of the usage of communication networks to transmit the remote signals, the time delays are inevitably introduced in the WADC control loops and will degrade the damping performance or may even cause instability of the closed-loop system [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Coordinated design of delay‐dependent wide‐area damping controllers considering multiple time delays

Yao

Yan

Liu

et al. 2021

IET Generation Trans & Dist

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This paper investigates coordinated design of multiple wide-area damping controllers (WADCs) for damping multiple inter-area oscillations considering communication delays in multiple control loop. Two approaches have been investigated: the sequential approach which uses the stability criteria for single delay and design the WADC independently, and the coordinated approach which employs a less conservative and fast Lyapunov stability criterion for linear system with multiple delays to calculate delay margins simultaneously and coordinately design the multiple WADCs. The sequential approach cannot reveal the interaction among several WADCs loops with multiple delays and may lead to inaccurate delay margins, while the coordinated approach takes into account interactions of delays between different WADC control loops and can result in accurate delay stable region and relationship between delay margins and the WADC gains. Gains of WADCs are determined based on a trade-off between damping performance and delay margin. Case studies are based on the modified IEEE 10-machine 39-bus power system equipped with two FACTS devices and two WADCs. The feasibility and effectiveness of the proposed approach is verified by simulation studies. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Design of the Pacific DC Intertie Wide Area Damping Controller

Cited by 69 publications

References 21 publications

A Generalized PSS Architecture for Balancing Transient and Small-Signal Response

A Generalized PSS Architecture for Balancing Transient and Small-Signal Response

Stabilising transient disturbances with utility‐scale inverter‐based resources

Coordinated design of delay‐dependent wide‐area damping controllers considering multiple time delays

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