Parallel and distributed state estimation

Falcāo, D.M.; Wu, F.F.; Murphy, Liam

doi:10.1109/59.387909

Cited by 185 publications

(82 citation statements)

References 17 publications

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“…Work done in [2] presents SCADA architecture integrated with business management system (BMS) where BMS transfers the planning of the system operation and schedules of contracts to EMS, meanwhile, EMS provides system constraints to BMS for further decision. Serviceoriented concept moves centralized EMS application to small size distributed control center [7,8,14]. Control and protection functionality can be located at any place where wide area measurements are able to merge into the system [15,16] .…”

Section: Legacymentioning

confidence: 99%

“…There has been several research initiatives aiming to incorporate phasor data with the legacy systems. On the other hand, the majority of them do hold the belief that the phasor measurement systems should be considered as independent system running in parallel with the legacy SCADA system due to their different requirements in terms of resolutions and synchronization [7][8][9]. SCADA and wide area monitoring (WAM) system are decoupled in recent power system operations.…”

Section: Introductionmentioning

confidence: 99%

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Framework Incorporating Synchronized Phasor Data for Power System Operation and Control

Zhu

Chenine

et al. 2012

9th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2012)

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This position paper presents initial research and investigation on a unified framework combining two independent systems, the legacy SCADA system and the synchronized phasor data system, that share the same measurement sources, i.e., current and voltage transducers and the same communication medium. In this framework, conventional SCADA system coupled with substation automation system are modeled together with synchronized phasor systems. The contribution of this paper also includes a state-ofthe-art survey of topics related to the proposed architectures. Furthermore, an overview of the data flows between substation and control centers including both SCADA and phasor measurements are presented. Taking into consideration the growing interest in communication and automation standardization this paper also addresses the communication between the substations coupled with relevant standards and technology.

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Section: Legacymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Framework Incorporating Synchronized Phasor Data for Power System Operation and Control

Zhu

Chenine

et al. 2012

9th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2012)

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“…The main drawback of the existing DSE algorithms [6,7,8] is that bad data detection and identification ability decreases greatly compared to OSE who is over the whole system, especially when bad data is close to the boundary of individual estimators. Moreover, the estimation accuracy on boundary buses are much lower than OSE, which decrease the accuracy in determination of global reference bus and make the whole result inconsistent.…”

Section: A Existing Dse Algorithms and Their Drawbackmentioning

confidence: 99%

“…With the development of Information Technology (IT), DSE algorithms, especially those without central controlling node [6,7], become more and more applicable.…”

Section: A Existing Dse Algorithms and Their Drawbackmentioning

confidence: 99%

“…And the boundary variables are The introduction of such a concurrent textured algorithm in state estimation problem avoids the disadvantages of OSE. Furthermore, compared with existing DSE algorithm [6,7,8], the performance of new algorithm improves greatly in respect of bad data detection and identification ability and avoiding discrepancy on boundary buses. This paper is organized as the following: the main flowchart and advantages of the new algorithm are discussed in Section II.…”

Section: Introductionmentioning

confidence: 99%

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A concurrent non-recursive textured algorithm for distributed multi-utility state estimation

Huang

Lei

IEEE Power Engineering Society Summer Meeting,

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During power deregulation, power companies are releasing their transmission grids to form ISOs/RTOs while maintaining their own state estimators over their own areas. A recent trend for these ISOs/RTOs is to further combine and enlarge to become a bigger Mega-RTO grid for a better market efficiency. The determination of state over the whole system becomes challenging due to its size. Instead of a totally new estimator over the whole grid, we propose a distributed textured algorithm to determine the whole state; in our algorithm, the existing state estimators in local companies/ISOs/RTOs are fully utilized and the new estimator is no longer required. We need only some extra communication for some instrumentation or estimated data exchange. In addition, such an algorithm has the following advantages: 1) The distributed textured algorithm is non-recursive, asynchronous and avoids central controlling node. Therefore, it is fast and practical. 2) Based on exchanging data with neighboring companies/ISOs/RTOs, textured overlapped areas become part of the process. With the developed textured decomposition method, bad data detection and identification ability is better than existing distributed state estimation algorithm, especially when bad data occur around the boundary of individual estimators. 3) Discrepancy on the boundary buses of different estimators decreases and the result over whole grid become more consistent. Moreover, when updating local estimation through estimated data exchanges, matrix modification techniques that utilize sparse techniques are developed to accelerate the computation speed. Detailed numerical tests are given to verify the efficiency and validity of the new approach.

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Implementation of multi‐objective chaotic mayfly optimisation for hydro‐thermal ‐ solar‐wind scheduling based on available transfer capability problem

Majumdar

Roy

Banerjee

2021

Int Trans Electr Energ Syst

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The electrical power generation from conventional thermal power plants needs to be interconnected with natural resources like solar, wind, hydro units with all-day planning, and operation strategies to save mother nature and meet the current electricity demand. The complexity and size of the power network are increasing rapidly day by day. The enhanced power transfer from one section to another section in the existing grid system is the subject of available transfer capability (ATC), which is the modern power system's critical factor.

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Parallel and distributed state estimation

Cited by 185 publications

References 17 publications

Framework Incorporating Synchronized Phasor Data for Power System Operation and Control

Framework Incorporating Synchronized Phasor Data for Power System Operation and Control

A concurrent non-recursive textured algorithm for distributed multi-utility state estimation

Implementation of multi‐objective chaotic mayfly optimisation for hydro‐thermal ‐ solar‐wind scheduling based on available transfer capability problem

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