Constrained population extremal optimization-based robust load frequency control of multi-area interconnected power system

Lu, Kuang Lieh; Zhou, Wuneng; Zeng, Guo‐Qiang; Zheng, Yiyuan

doi:10.1016/j.ijepes.2018.08.043

Cited by 165 publications

(50 citation statements)

References 47 publications

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“…This limit agrees with recent EU-wide targets, which expect to have an interconnection power of 10% in the year 2020 [46]. Most contributions found in the literature review either do not limit the maximum tie-line power, or it is not indicated [81][82][83][84].…”

Section: Supply-side Modelingsupporting

confidence: 85%

Fast Power Reserve Emulation Strategy for VSWT Supporting Frequency Control in Multi-Area Power Systems

et al. 2018

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The integration of renewables into power systems involves significant targets and new scenarios with an important role for these alternative resources, mainly wind and PV power plants. Among the different objectives, frequency control strategies and new reserve analysis are currently considered as a major concern in power system stability and reliability studies. This paper aims to provide an analysis of multi-area power systems submitted to power imbalances, considering a high wind power penetration in line with certain European energy road-maps. Frequency control strategies applied to wind power plants from different areas are studied and compared for simulation purposes, including conventional generation units. Different parameters, such as nadir values, stabilization time intervals and tie-line active power exchanges are also analyzed. Detailed generation unit models are included in the paper. The results provide relevant information on the influence of multi-area scenarios on the global frequency response, including participation of wind power plants in system frequency control.

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Section: Supply-side Modelingsupporting

confidence: 85%

Fast Power Reserve Emulation Strategy for VSWT Supporting Frequency Control in Multi-Area Power Systems

et al. 2018

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“…It is found that the stability and the upper bound of hitting-time, for H -M, are critically dependent on some properties of the input signals, quantizer gain, as well as the adaptive parameters in H -M. The simulation results confirm theoretical findings. Future research includes using H -M in applications such as in Power Electronics, in event-triggered NCS, load frequency control of multi-area interconnected power systems (Lu, Zhou, Zeng, & Zheng, 2019) and in the internet of things (IoT). Also, this adaptive algorithm can further be improved to tackle many challenges that we face in the aforementioned applications.…”

Section: Resultsmentioning

confidence: 99%

Hybrid delta modulator: stability analysis using sliding mode theory

Almakhles

Wanigasekara

Swain

et al. 2019

Systems Science & Control Engineering

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The present study proposes a new dynamic two-level quantizer, called as hybrid delta modulator (H-M), which combines the features of both delta-modulator and delta-sigma modulator. In the transient state, the H-M exhibits the dynamical behaviour of delta modulator (-M) while in steady state, its behaviour is similar to delta-sigma modulator (-M). This study investigates about various dynamics of the proposed H-M in both continuous and discrete-time domains. The stability conditions of H-M are derived using the theory of sliding and quasi-sliding mode. The theoretical results are validated through extensive simulations.

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“…Second, the response speed of the PI controllers should be tuned slower than the primary-level controllers. It should be noted that these PI controllers can also be tuned using some swarm intelligence algorithms [40,41]. Although those algorithms may improve the performance of the PI controllers, they are complex and time consuming.…”

Section: Simulation Studiesmentioning

confidence: 99%

Distributed Economic Power Dispatch and Bus Voltage Control for Droop-Controlled DC Microgrids

Zeng

Gao

et al. 2019

Energies

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This paper proposes a distributed economic power dispatch (EPD) and bus voltage control solution for droop-controlled DC microgrids. For the proposed solution, a local power controller and a local voltage controller are added for each distributed generator (DG) to overcome the limitations of the conventional droop control. The power controller generates the first voltage correction term by comparing the local output power of DG with the reference instruction generated by the proposed distributed EPD algorithm, and thus, it can reduce the operation cost of the microgrid by optimally sharing the load demand among all the participating DGs. The voltage controller generates the second voltage correction term by comparing the nominal DC bus voltage value with the average bus voltage generated by the proposed distributed average bus voltage observation (ABVO) algorithm, and thus, it can realize the global bus voltage regulation of the DC microgrid. In contrast with conventional solutions, the control solution can distribute the computational and communication burdens among all the DGs working in parallel, which is more flexible, scalable, and robust against single-point failure. The effectiveness of the proposed control solution is demonstrated through simulation studies.

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Constrained population extremal optimization-based robust load frequency control of multi-area interconnected power system

Cited by 165 publications

References 47 publications

Fast Power Reserve Emulation Strategy for VSWT Supporting Frequency Control in Multi-Area Power Systems

Fast Power Reserve Emulation Strategy for VSWT Supporting Frequency Control in Multi-Area Power Systems

Hybrid delta modulator: stability analysis using sliding mode theory

Distributed Economic Power Dispatch and Bus Voltage Control for Droop-Controlled DC Microgrids

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