Stability analysis and reactive power compensation issue in a microgrid with a DFIG based WECS

Mohanty, Asit; Viswavandya, Meera; Ray, Partha; Patra, Sandipan

doi:10.1016/j.ijepes.2014.05.033

Cited by 45 publications

(15 citation statements)

References 19 publications

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“…Hybrid microgrid generally refers to combination of AC and DC microgrids or different combinations of Distributed Energy Resources (DER) or combination of DER with different control strategy etc., In all these cases the important thing to be maintained in the microgrid is the system stability. In the proceeding context different hybrid microgrid structures with different controls are discussed in [29], [30], [31] and [32]. The small signal stability of the multi machine power system (say IEEE-9 bus system is considered in this paper) is analysed, with and without the connection of a MG by D. Padma Subramanian et all in [31].…”

Section: Stability Analysis In Hybrid Micro Systemsmentioning

confidence: 99%

See 1 more Smart Citation

Transient Behaviour of a Microgrid and Its Impact on Stability during Pre and Post Islanding -A Novel Survey

Chitra¹,

Sivakumar²,

S³

et al. 2018

IJET

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Over the last 2 decades, significant advancement has been made in microgrid. The stability on microgrid will talk about issues relating to intentional and unintentional islanding conditions. Having observed the recent literature, the growth of inverter interfaced Distributed Generation with microgrid cases a pressing issue in stability. To symbolise the significance of stability, this article carries out an extensive review about the problems in transient stability and detailing the steps taken by various authors that lead to the system stable. To date there are lots of work in analyzing system stability in microgrid. From which this article focuses about the various stability issues and maintaining it different control techniques are reviewed

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Section: Stability Analysis In Hybrid Micro Systemsmentioning

confidence: 99%

“…Paper [29] discusses the transient behaviour of the MG in islanded mode which comprises of DFIG based wind turbine and a diesel generator. The heuristic nature of this hybrid system is that, MG results in insufficient supply of reactive power to the loads.…”

Section: Stability Analysis In Hybrid Micro Systemsmentioning

confidence: 99%

Transient Behaviour of a Microgrid and Its Impact on Stability during Pre and Post Islanding -A Novel Survey

Chitra¹,

Sivakumar²,

S³

et al. 2018

IJET

View full text Add to dashboard Cite

show abstract

“…For standalone operation, diesel power plays a great role, acting as backup power in several hybrid power generation systems. Despite showing simplicity in its functioning and providing reactive power for better voltage regulation [5][6][7][8], diesel power is less reliable. There are lots of operational constraints with regard to environmental and economical issues.…”

Section: Introductionmentioning

confidence: 99%

Linear matrix inequality approach in stability improvement through reactive power control in hybrid distributed generation system

et al. 2019

Self Cite

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Stability of a standalone hybrid power system (HPS) in a smart grid is always a challenging task. Further, the operational stability of the power system depends on the associated communication infrastructure. Therefore, it is always crucial to pick up a controller that can assure system's stability along with performance, despite disturbances like (load and input wind variations) with communication delays. Present study focuses on reactive power management and voltage stability issues of an isolated HPS. The stability aspects of HPS are improved through reactive power compensation, by custom power devices like static var compensator. The control aspects of SVC as well as the whole hybrid system are taken care by H∞ linear matrix inequalities approach. Further, H-infinity control, Lyapunov stability along with linear matrix inequalities techniques estimate the delay boundary of controllers. The iterative performance of the proportional-integral-derivative controllers, and robust H∞ damping controller of the HPS, are designed through LMI approach. Later experimental study of the HPS is done, with a prototype model in dSPACE real-time control environment. In this case, dSPACE 1104 is added for data acquisition and control. Adaptability and robustness of the proposed controllers are verified under fluctuating loads and uncertain wind power input.

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“…STATCOM as a comprehensive compensator was suggested for microgrids . It was shown that the UPFC and STATCOM are better choices for reactive power and voltage in typical IHPS . Application of the model predictive control approach for voltage stability in an isolated hybrid wind‐diesel generation system based on reactive power control was studied in Kassem and Abdelaziz .…”

Section: Introductionmentioning

confidence: 99%

Robust distributed control of reactive power in a hybrid wind‐diesel power system with STATCOM

Raouf

Akbarimajd

Dejamkhooy

et al. 2018

Int Trans Electr Energ Syst

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Summary Distributed generation is an interesting way to provide electricity, especially for areas that are far from the electrical grid. Because of the unpredictable nature of renewable sources, centralized control schemes are not reliable. In this paper, a robust distributed controller was designed for an isolated hybrid power system (IHPS) with a static synchronous compensator. To this end, a multi‐unit hybrid wind‐diesel system was investigated. Kharitonov's theorem was used for designing robust PI controller parameters of the IHPS. Moreover, the system stability analysis was conducted by Kharitonov polynomials according to the zero inclusion principle, Hurwitz matrix stability examination, and Mikhail's criterion. By suggesting and accomplishing several scenarios, the performance and robustness of the proposed controller were inspected under different disturbances. For the purpose of ability comparison, the pure PI and fuzzy‐PI controllers tuned by the GWO algorithm were applied. Simulation results showed that dynamic responses of the power system were improved by the proposed controller. Furthermore, the results emphasized that the proposed Kharitonov's theorem‐based controller was robust against large disturbances.

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Stability analysis and reactive power compensation issue in a microgrid with a DFIG based WECS

Cited by 45 publications

References 19 publications

Transient Behaviour of a Microgrid and Its Impact on Stability during Pre and Post Islanding -A Novel Survey

Transient Behaviour of a Microgrid and Its Impact on Stability during Pre and Post Islanding -A Novel Survey

Linear matrix inequality approach in stability improvement through reactive power control in hybrid distributed generation system

Robust distributed control of reactive power in a hybrid wind‐diesel power system with STATCOM

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