Integrated multi-stage LQR power oscillation damping FACTS controller

Pandey, Rajendra K.; Gupta, Deepak Kumar

doi:10.17775/cseejpes.2016.00510

Cited by 21 publications

(11 citation statements)

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“…The optimal placement of FACTS devices is a common yet important research topic in literature and has been investigated via various approaches. These include (1) conventional methods (such as indexing [11], controlling [12], residue analysis [13], numerical optimization [14], sensitivity [15], and eigenvalue [16]), (2) optimization methods (such as optimal power flow [17], linear programming [18], dynamic programming [19], mixed integer programming [20], stochastic load flow [21], and adaptive control law [22]), (3) artificial intelligence techniques (such as Monte Carlo simulation [23], artificial bee colony [24], artificial neural network [25], symbiotic organism search algorithm [26], fuzzy systems [27], and particle swarm optimization [28]), (4) hybrid techniques (such as hybrid of bee colony and neural networks [29], hybrid of genetic algorithm and fuzzy systems [30], mixed optimal power flow and particle swarm optimization [31], mixed bee colony and optimal power flow [32], and hybrid of fuzzy systems and Lyapunov theory [33]), and (5) other approaches (such as energy approach [34], active control [35], graph search algorithms [36], whale optimization [37], Gray Wolf optimizer [38], salp swarm optimizer [39], Grasshooper optimization [40], ant lion optimization [41], and spider monkey optimization [42]).…”

Section: A State Of the Artmentioning

confidence: 99%

Cyber-Security Constrained Placement of FACTS Devices in Power Networks From a Novel Topological Perspective

et al. 2020

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Optimal placement of flexible AC transmission systems (FACTS) devices and the cybersecurity of associated data exchange are crucial for the controllability of wide area power networks. The placement of FACTS devices is studied in this paper from a novel graph theoretic perspective, which unlike the existing approaches, purely relies on topological characteristics of the underlying physical graphs of power networks. To this end, the maximum matching principle (MMP) is used to find the set of required FACTS devices for the grid controllability. In addition, the cyber-security of the most critical data related to the FACTS controllers is guaranteed by introducing the concept of moderated-k-security where k is a measure of data obscurity from the adversary perspective. The idea of moderated-k-symmetry is proposed to facilitate the arrangement of the published cyber graph based on a permutation of nodes within the symmetry group of the grid, called generator of automorphism. It is then verified that the published cybergraph can significantly obscure the data exchange over the cyber graph for adversaries. Finally, a similarity is observed and demonstrated between the set of critical nodes attained from the symmetry analysis and the solution of the FACTS devices placement that further highlights the importance of symmetry for the analysis and design of complex power networks. Detailed simulations are applied to three power networks and analyzed to demonstrate the performance and eligibility of the proposed methods and results.

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Section: A State Of the Artmentioning

confidence: 99%

Cyber-Security Constrained Placement of FACTS Devices in Power Networks From a Novel Topological Perspective

et al. 2020

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“…[2][3][4][5][6] However, the PSS usually is effective for the local oscillation modes, while little effect can be achieved when PSS is faced to the inter-area oscillations. To overcome the shortage of PSS and damp the interarea LFO effectively, grid-side LFO controllers are proposed for the development of flexible ac transmission system (FACTS) technologies, such as using STATCOM through particle swarm optimization technique to damping oscillations, 7 designing multiple FACTS supplementary damping controllers based on the static var compensation (SVC), thyristor controlled series capacitor (TCSC), 8 and so on.…”

Section: Introductionmentioning

confidence: 99%

Inverter‐side robust damping controller design of hybrid HVDC with cascaded multi‐infeed MMC converters in asynchronous situation

Zhao

Zeng

Liu

et al. 2020

Int Trans Electr Energ Syst

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Objective it is known that the rectifier side control usually suffers from the time delay and long distance communication problems, which could make the damping controller to be invalid and decrease the system stability. Specifically, when the system is in asynchronous operation, the rectifier controllers cannot damp the oscillations in inverter side AC system. Thus, to design the HVDC damping controller at inverter side becomes a feasible solution to avoid these problems. Methods Based on the MMC control strategy, to design the damping controllers at inverter side, the mixed H2/H∞ robust method with regional pole placement is investigated for the two MMC inverters in constant active power control based on the master‐slave control mode, where the robustness, control effort and the damping ratios can all be guaranteed simultaneously. During the design process, the simplified system models, namely the TLS‐ESPRIT identification algorithm, is also used for controller study. Finally, two robust controllers are obtained based on the proposed method and the inverter side damping controllers are added at the MMCs of hybrid HVDC. Results The damping controllers for hybrid HVDC with cascaded multi‐infeed MMCs can be designed at inverter side, which endows the hybrid HVDC with more control functions compared with the classical HVDC systems. The damping controllers can be added at the cascaded multi‐infeed MMC inverters in constant active power control, which can enhance the connected AC systems' small stabilities. Conclusions Based on the multi‐objective robust theory, the control effectiveness and robustness of the designed controllers can be guaranteed simultaneously, which can damp the low frequency oscillations significantly in different operating situations.

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“…Tuning methods of WAPSS includes residue-based method [6,7], pole placement method [8][9][10], robust control [11,12] etc. Design of WAC based on linear quadratic regulator (LQR) or linear quadratic Gaussian (LQG) [13][14][15][16][17][18][19][20][21][22][23] controllers utilise state estimators to determine the dynamic states of the system. The fuzzy logic controllers [24,25] utilise the output signals, which have maximum observability on the inter-area modes and utilise a fuzzy rule to generate the required control signal.…”

Section: Introductionmentioning

confidence: 99%

Adaptive optimal wide‐area controller for multi‐area power system using phasor measurement unit measurements

Joseph

Tyagi

Kumar

2019

IET Generation, Transmission & Distribution

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Integrated multi-stage LQR power oscillation damping FACTS controller

Cited by 21 publications

References 0 publications

Cyber-Security Constrained Placement of FACTS Devices in Power Networks From a Novel Topological Perspective

Cyber-Security Constrained Placement of FACTS Devices in Power Networks From a Novel Topological Perspective

Inverter‐side robust damping controller design of hybrid HVDC with cascaded multi‐infeed MMC converters in asynchronous situation

Adaptive optimal wide‐area controller for multi‐area power system using phasor measurement unit measurements

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