Two-Step Spectral Clustering Controlled Islanding Algorithm

Ding, Lei; González-Longatt, Francisco; Wall, Peter; Terzija, Vladimir

doi:10.1109/tpwrs.2012.2197640

Cited by 267 publications

(296 citation statements)

References 25 publications

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“…Therefore, some researchers have employed the flow impact as the objective function. References [3,16] considered the power flow as the objective function, and accomplished the splitting strategy by means of constrained spectral clustering. The clustering algorithm employs the relaxation methods so as to broaden constraints, which needs to be verified in large grids [17].…”

Section: ) Coherency Identification Of Swinging Generators (Cisg)mentioning

confidence: 99%

“…According to (3), the rotor motion equation of multimachine power systems can be derived as below [20,21].…”

Section: Generators Clustering Modelmentioning

confidence: 99%

“…The controlled islanding strategy of power system consists of two steps [3]: one is to identify the coherent generators, and the other is to search the optimal separation boundary. The first step is to cluster the out-of-step generators according to their nonsynchronous tendency after a disturbance.…”

Section: Introductionmentioning

confidence: 99%

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Two-stage controlled islanding strategy based on Stoer-Wagner and improved Dinic algorithms

Tang

Jia

Chen

et al. 2016

J. Mod. Power Syst. Clean Energy

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The controlled islanding for the power system is an effective method to deal with the emergent situations caused by large disturbances. The size of the solution space would increase exponentially as the scale of the power grid increases. The goal of our controlled islanding strategy is to divide the system into several islands quickly. Meanwhile, the generator coherency and the power-flow disruption have to be taken into consideration carefully. This paper proposed a two-stage fast islanding strategy for large power networks, which is on the basis of large power grid graph theories. In the first stage, the Stoer-Wagner algorithm is employed to obtain the grouping cluster of coherent generators in the dynamic undirected liaison graph. In the second stage, the improved Dinic max-flow method is proposed to search the optimal splitting boundary so as to acquire the minimum power flow impact. Our two-stage islanding strategy does not need to reduce the whole power network. Simulations on IEEE 118-bus and 162-bus power systems showed that the proposed strategy can acquire high quality solutions effectively and efficiently.

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Section: ) Coherency Identification Of Swinging Generators (Cisg)mentioning

confidence: 99%

“…According to (3), the rotor motion equation of multimachine power systems can be derived as below [20,21].…”

Section: Generators Clustering Modelmentioning

confidence: 99%

See 1 more Smart Citation

Two-stage controlled islanding strategy based on Stoer-Wagner and improved Dinic algorithms

Tang

Jia

Chen

et al. 2016

J. Mod. Power Syst. Clean Energy

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show abstract

“…In these methods, ICI is usually modeled as a combinatorial optimization problem with constraints. The objective function of this optimization problem is to minimize either the power-flow disruption or the power imbalance within islands, while the constraints are the coherent generator groups [4]. Nonetheless, the concept of controlled islanding strategies combined with an approach of Parallel Power System Restoration (PPSR) is still an unexplored research area that only a few works have attempted to explore [5].…”

Section: Introductionmentioning

confidence: 99%

System splitting strategy considering power system restoration

Demetriou

Kyriacou

Kyriakides

et al. 2017

2017 IEEE Manchester PowerTech

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Abstract-An Intentional Controlled Islanding (ICI) algorithm based on an exact Mixed Integer Programming Formulation (MILP) was previously proposed and tested using IEEE test systems. The proposed algorithm directly determines an islanding solution with minimal power-flow disruption for any given number of islands, while ensuring that each island contains only coherent generators. However, since one or more of the created islands might reach a local blackout after the splitting strategy is carried out, the aforementioned algorithm is extended to consider power system restoration constraints. Considering that data collection is essential to properly run a restoration process and assuming a completely observable power system at normal operating conditions, the extended ICI algorithm creates islands that are also completely observable, includes at least one blackstart unit within each island, and guarantees sufficient generation capacity to match the load consumption within each island. These new constraints can be viewed as a power system restoration planning stage.

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“…Some may require measurements to be streamed from multiple locations at a rate of once per cycle (e.g. intelligent controlled islanding [11]) while others may only require binary signals to be streamed at lower rates (e.g. supervision of backup protection [10]).…”

Section: Introductionmentioning

confidence: 99%

Improving the performance of power system protection using wide area monitoring systems

Phadke

Wall

Ding

et al. 2016

J. Mod. Power Syst. Clean Energy

Self Cite

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Wide area monitoring (WAM) offers many opportunities to improve the performance of power system protection. This paper presents some of these opportunities and the motivation for their development. This methods include monitoring the suitability of relay characteristics, supervisory control of backup protection, more adaptive and intelligent system protection and the creation of novel system integrity protection scheme. The speed of response required for primary protection means that the role WAM in enhancing protection is limited to backup and system protection. The opportunities offered by WAM for enhancing protection are attractive because of the emerging challenges faced by the modern power system protection. The increasingly variable operating conditions of power systems are making it ever more difficult to select relay characteristics that will be a suitable compromise for all loading conditions and contingencies. The maloperation of relays has contributed to the inception and evolution of 70 % of blackouts, thus the supervision of the backup protection may prove a valuable tool for preventing or limiting the scale of blackouts. The increasing interconnection and complexity of modern power systems has made them more vulnerable to wide area disturbances and this has contributed to several recent blackouts. The proper management of these wide area disturbances is beyond the scope of most of the existing protection and new, adaptive system integrity protection schemes are needed to protect power system security.

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Two-Step Spectral Clustering Controlled Islanding Algorithm

Cited by 267 publications

References 25 publications

Two-stage controlled islanding strategy based on Stoer-Wagner and improved Dinic algorithms

Two-stage controlled islanding strategy based on Stoer-Wagner and improved Dinic algorithms

System splitting strategy considering power system restoration

Improving the performance of power system protection using wide area monitoring systems

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