Determining Wide-Area Signals and Locations of Regulating Devices to Damp Inter-Area Oscillations Through Eigenvalue Sensitivity Analysis Using DIgSILENT Programming Language

Silva-Saravia, Horacio; Wang, Yajun; Pulgar-Painemal, Héctor

doi:10.1007/978-3-319-50532-9_7

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…En consecuencia, el vector propio derecho φ i es un vector columna con una longitud igual al número de estados. El vector propio izquierdo ψ i es un vector fila (Pota, 2018;Silva et al, 2018).…”

Section: Análisis Modal De Sistemas Eléctricos De Potenciaunclassified

Herramienta Computacional para Determinar los Residuos de Sistemas Eléctricos de Potencia

Oscullo,

Jumbo,

Otero

2024

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Este artículo presenta el desarrollo de una herramienta de cálculo de los residuos de los modos críticos de oscilación para un sistema eléctrico, utilizando datos del análisis modal de PowerFactory de DIgSILENT. El problema planteado es de gran importancia en los sistemas eléctricos actuales, los cuales se caracterizan por operar sus elementos al límite y si estas oscilaciones, no son adecuadamente amortiguadas, pueden causar fallas en la generación al reducir el nivel de estabilidad del sistema. PowerFactory es una herramienta de ingeniería para analizar sistemas eléctricos, utilizado ampliamente en la industria e investigación. Este software cuenta con un lenguaje propio de programación, a saber, DIgSILENT Programming Language (DPL), el cual permite procesar variables de interés desde el análisis modal, mismas que pueden ser usadas en otros dispositivos del sistema, como son los estabilizadores de sistemas de potencia (PSS). Mediante programación de las variables de interés, se calcula el residuo de los modos críticos de oscilación. Así, el cálculo del residuo requiere del procesamiento de la matriz de estados A facilitada directamente por PowerFactory y de la construcción de las matrices de las variables de entrada B y salida C, respectivamente, por medio de programación DPL para diferentes escenarios operativos del sistema eléctrico de potencia. La metodología de cálculo se ha aplicado a sistemas eléctricos disponibles en la literatura especializada en estabilidad oscilatoria en la cual se aplica la herramienta para observar la dinámica de los modos de oscilación con y sin PSS, siendo estos últimos sintonizados mediante el residuo calculado.

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Section: Análisis Modal De Sistemas Eléctricos De Potenciaunclassified

Herramienta Computacional para Determinar los Residuos de Sistemas Eléctricos de Potencia

Oscullo,

Jumbo,

Otero

2024

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“…The following switching law is based on the estimated change in the total action when a damping controller k changes its switching status by choosing the direction in the independent vector space of the damping control gains that minimizes ∆S ∞ in (7). For ∆q k > γ and ∆S ∞ (∆q k ) in percentage of the base case S 0 ∞ the switching law is: • Available actuators (q k0 = 0) change their status to "on" (q k = 1) when ∆S ∞ (∆q k ) <∆ S ∞ < 0.…”

Section: Implementation: On-line Proceduresmentioning

confidence: 99%

“…Applications of EIRs for damping controllers have been widely studied in the last decades, for example in wind turbine generators (WTGs) [4] and energy storage systems [5], [6]. Furthermore, the impact of EIR controllers, specially for damping inter-area oscillations, has been investigated in new areas such that the analysis of the location of EIRs [7]- [9], the optimal control of distributed resources [10], [11] and the use of wide-area damping control (WADC) [12], [13]. As the number of EIRs in the system becomes larger and the grid is enable with more PMUs, the coordination of these EIRs becomes also crucial to achieve a better dynamic performance.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Coordination of Damping Controllers for Enhanced Power System Stability

Silva-Saravia

Pulgar-Painemal

Schoenwald

et al. 2020

IEEE Open J. Power Energy

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This paper introduces the concept of adaptive coordination of damping controllers for enhancing power system stability. The coordination uses phasor measurement units (PMUs) to adapt to different disturbances by selecting the switching status (on/off) of damping controllers that minimizes an energy-based dynamic performance measure. This dynamic performance measure, referred to as total action (TA), uses a physical interpretation of excited modes rather than fixed targeted modes as in the traditional damping control design. The coordination is formulated as a binary integer programming problem, which is solved by using the total action sensitivity (TAS). The concept of oscillation energy and the implementation of the adaptive coordination scheme is tested in the western North America power system (wNAPS). The results show that the proposed adaptive control scheme can improve oscillation damping for different short-circuit locations even in the presence of large communication delays.

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“…The linearized model and the random variables of power systems are the bases of PSSSA. The state matrix A of large-scale complex power systems is obtained by DIgSILENT/PowerFactory, and the input matrix B and output matrix C is obtained by a numerical calculation method introduced in [21].…”

Section: Probabilistic Small Signal Stability Analysismentioning

confidence: 99%

Latin Hypercube Sampling Method for Location Selection of Multi-Infeed HVDC System Terminal

Liu

et al. 2020

Energies

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Owing to the stochastic states of power systems with large-scale renewable generation, the impact of high-voltage direct current (HVDC) systems on the stability of the power system should be examined in a probabilistic manner. A probabilistic small signal stability assessment methodology to select the best locations for multi-infeed high-voltage direct current systems in alternating current (AC) grids is proposed in this paper. The Latin hypercube sampling-based Monte Carlo simulation approach is taken to generate the stochastic operation scenarios of power systems with the consideration of several stochastic factors, i.e., load demand and power generation. The damping ratio of the critical oscillation modes and the controllability of power injection to oscillation modes are analyzed by the probabilistic small signal stability. A probabilistic index is proposed to select the best locations of high-voltage direct current systems for improving the damping of the oscillation modes. The proposed methodology is applied to an IEEE 39 bus system considering the stochastic load demand and power generation. The results of probabilistic small signal stability assessment and a time-domain simulation show that the installation of a high-voltage direct current system on the selected locations can effectively improve the system damping.

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Determining Wide-Area Signals and Locations of Regulating Devices to Damp Inter-Area Oscillations Through Eigenvalue Sensitivity Analysis Using DIgSILENT Programming Language

Cited by 6 publications

References 7 publications

Herramienta Computacional para Determinar los Residuos de Sistemas Eléctricos de Potencia

Herramienta Computacional para Determinar los Residuos de Sistemas Eléctricos de Potencia

Adaptive Coordination of Damping Controllers for Enhanced Power System Stability

Latin Hypercube Sampling Method for Location Selection of Multi-Infeed HVDC System Terminal

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