Centralized coordination of load shedding and protection system of transmission lines

Hoseinzadeh, Bakhtyar; Bak, Claus Leth

doi:10.1002/etep.2674

Cited by 7 publications

(6 citation statements)

References 10 publications

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“…OSI proposed in 32 is further used to design a load shedding scheme based on the voltage magnitude as well as transmission line loading in Reference 33. A load shedding index (LSI) is included in OSI.…”

Section: Methods Used In Sips Implementationmentioning

confidence: 99%

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Recent trends in integrity protection of power system: A literature review

Rajalwal

Ghosh

2020

Int Trans Electr Energ Syst

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Background: An increase in the load demand has been forcing the electrical components to work near their allowable limits. The transformation of the power system in terms of technology and geographical stretch has imposed the necessity of employing advanced protection schemes in the system. The system integrity protection scheme (SIPS) has evolved as an effective measure with the gradual sprawl of the conventional grid with local measurements to a smart grid with wide-area measurement system. Aims: SIPS is a rapidly growing field in the power system and thus the study of its performance analysis, implementation methods, and applications is necessary. This paper provides a comprehensive overview of SIPS technology. Materials & Methods: In this paper, SIPS definition and classification are briefly discussed. SIPS normalization schemes that include load shedding, controlled islanding, generation rejection, ou-of-step prediction, relay settings are elaborated. To implement these normalization schemes, various methods such as index-based, optimization-based, WAMS based, EAC based, and ML-based are discussed and compared. Finally, a comparative assessment is framed based on SIPS applied for different power system issues such as transient instability, voltage instability, overloading, line contingency, protection security, etc. Results: It is observed that most of the proposed SIPS are implemented for improving transient stability. The preferred solution for implementing the SIPS by the researchers is load shedding. It is also observed that there is a lack of implementation of SIPS with renewable energy systems.

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Section: Methods Used In Sips Implementationmentioning

confidence: 99%

“…In Reference 38, a PMU based load shedding strategy is proposed that includes the wind generation. The amount of load shedding is proposed by the Equation (33).…”

Section: Load Shedding Strategy In Wind Generation Scenariomentioning

confidence: 99%

Recent trends in integrity protection of power system: A literature review

Rajalwal

Ghosh

2020

Int Trans Electr Energ Syst

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“…The first solution is load shedding at the receiving end bus. This countermeasure is elaborated in details in [1,3], but it is out of scope of this paper. The second alternative is reducing the generation in the sending end bus, which is the main topic of this paper.…”

Section: Maximum Apparent Power Dispatch Of Wppmentioning

confidence: 99%

“…Cascading failures are a series of successive and dependent outages that progressively weaken the stability of power system leading to blackouts and thus significant economical losses [1]. Classification of recent major blackouts reveals that cascading failures due to overloading of power system components is the main initiating incident of blackouts after short-circuit fault followed by protection system malfunction and power plant outage.…”

Section: Introductionmentioning

confidence: 99%

Emergency wind power plant re‐dispatching against transmission system cascading failures using reverse tracking of line power flow

Hoseinzadeh

Blaabjerg

Chen

et al. 2020

IET Generation, Transmission & Distribution

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“…The above‐mentioned damping methods are cost‐effective. However, satisfactory performance from these linear control approaches are achieved only within the predefined operating conditions; many nonlinear dynamics may be triggered for the wind speeds below 12 m/s . To overcome this shortcoming, a robust nonlinear damping control method is necessary.…”

Section: Introductionmentioning

confidence: 99%

Fractional‐order sliding mode control for damping of subsynchronous control interaction in DFIG‐based wind farms

Xiong

Wang

et al. 2019

Wind Energy

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This paper proposes a fractional-order sliding mode control (FOSMC) based on feedback linearization (FL) technique to mitigate subsynchronous control interaction (SSCI) in doubly fed induction generator (DFIG)-based wind farms connected to series-compensated transmission lines. A linearized form of the studied system is obtained with the use of FL, which leads to reduced system order and small computational burden. Then the FOSMC is designed for grid-side converter (GSC) to stabilize SSCI and to provide a considerable robustness against external disturbances and parameter uncertainties. For FOSMC parameter tuning, genetic algorithm (GA) is performed through MATLAB/SIMULINK. Time-domain simulation are carried out to evaluate the effectiveness of the FOSMC in mitigating SSCI at varied operating conditions, and the superior performance of the proposed control is demonstrated as compared with conventional vector control (VC), feedback linearization sliding mode control (FLSMC), high-order sliding mode control (HOSMC). KEYWORDS doubly fed induction generator, fractional-order sliding mode control, subsynchronous control interaction 1 | INTRODUCTION Subsynchronous resonance (SSR) of wind farms is a condition where wind turbines exchange energy with the grid at one or more natural frequency below the fundamental frequency. 1 A new type of SSR, known as subsynchronous control interaction (SSCI), has been detected worldwide in recent years. 2 Without the involvement of mechanical components, rapidly developing SSCI can lead to serious equipment damage and loss of power generation if proper countermeasures are not taken instantly. Furthermore, many studies have demonstrated that doubly fed induction generator (DFIG) wind farms are susceptible to SSCI due to the active participation of fast-acting converter control. 3,4 Therefore, it is urgent to develop effective SSCI mitigation techniques to ensure the safe operation of grid-connected DFIG-based wind farms.The design of SSCI damping controls has received much attention from industry and academia. A number of control methods using FACTS devices are proposed to mitigate SSCI, such as gate-controlled series capacitor (GCSC), 5 thyristor-controlled series capacitor (TCSC), 6 and static synchronous compensator (STATCOM). 7 As compared with FACTS-based damping controls, modification of wind turbine converter (WTC) control is an economical and convenient solution to SSCI. Since grid-side converter (GSC) has the damping capability similar to STATCOM with an extra advantage of lower cost, various damping methods are proposed based on the improvement of existing GSC control. A washout block is embedded into GSC stator voltage control for SSCI mitigation. 8 A supplemental damping signal is added to the summing junction of GSC's outer control. 9 GSC's d-axis inner control loop is also utilized to alleviate SSCI with speed deviation as input control signal (ICS). 10 GSC provides the greater flexibility of adding SSCI damping controls, but its damping capability is limited to 30% of...

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Centralized coordination of load shedding and protection system of transmission lines

Cited by 7 publications

References 10 publications

Recent trends in integrity protection of power system: A literature review

Recent trends in integrity protection of power system: A literature review

Emergency wind power plant re‐dispatching against transmission system cascading failures using reverse tracking of line power flow

Fractional‐order sliding mode control for damping of subsynchronous control interaction in DFIG‐based wind farms

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