A Hybrid System of Li-Ion Capacitors and Flow Battery for Dynamic Wind Energy Support

Abstract-This paper describes the modeling and formulation of a variety of deterministic techniques for energy storage devices, namely the PI, H-infinity and sliding mode controllers. These techniques are defined based on a general, yet detailed, energy storage device model, which is accurate for transient stability analysis. The paper also presents a thorough statistical comparison of the performance and robustness of the considered control techniques, using stochastic dynamic models and a variety of disturbances and scenarios. The case study is based on a 1,479-bus model of the all-island Irish transmission system and an energy storage device actually installed in the system.

show abstract

“…The dc/dc converter connection used in this paper is based on [33]. Imposing the GEM to BES equations, one has:…”

Section: Appendix II Model Of a Battery Energy Storage [13]mentioning

confidence: 99%

Modeling, simulation and comparison of control techniques for energy storage systems

Ortega

Milano

2017

2017 IEEE Manchester PowerTech

View full text Add to dashboard Cite

show abstract

“…In [17], a probabilistic method is proposed to determine the capacities of the battery energy storage system and UC to limit the wind power fluctuation within a certain value. A similar study is carried out in [18], but zinc bromide flow battery and lithium-ion capacitors are used as hybrid storage system to constrain the wind power output ramp rates. However, all these research works do not explore the effect of UC on the transient performance of the wind energy conversion system.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Frequency Response Strategy for a PMSG-Based Wind Energy Conversion System Using Ultracapacitor in Remote Area Power Supply Systems

Tan

Muttaqi

Ciufo

et al. 2017

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

, "Enhanced frequency response strategy for PMSG based wind energy conversion system using ultracapacitor in remote area power supply systems," in ndustry Applications Society Annual Meeting, 2015 IEEE, 2015 Enhanced frequency response strategy for PMSG based wind energy conversion system using ultracapacitor in remote area power supply systems AbstractThe high penetration level of wind energy, and non-responsive nature of power electronic interfaced wind energy conversion system (WECS) during frequency variations may create significant stress on conventional generators in a wind-diesel hybrid remote area power supply (RAPS) system. Hence, it is a necessity for WECS to provide frequency support. However, conventional frequency control strategies being used for WECS may impose a severe stress to wind turbines. In this paper, an enhanced frequency response strategy is proposed for the permanent magnet synchronous generator (PMSG) based WECS to regulate RAPS system frequency jointly with its integrated ultracapacitors. The proposed frequency response strategy utilizes the droop control and virtual inertial techniques while suboptimal power point tracking (SOPPT) is implemented in WECS. It can effectively regulate RAPS system frequency while alleviating high rate of change of power (ROCOP) and thus torque stress on both the conventional generators and wind turbines under frequency disturbances. Abstract-The high penetration level of wind energy, and non-responsive nature of power electronic interfaced wind energy conversion system (WECS) during frequency variations may create significant stress on conventional generators in a wind-diesel hybrid remote area power supply (RAPS) system. Hence, it is a necessity for WECS to provide frequency support. However, conventional frequency control strategies being used for WECS may impose a severe stress to wind turbines. In this paper, an enhanced frequency response strategy is proposed for the permanent magnet synchronous generators (PMSG) based WECS to regulate RAPS system frequency jointly with its integrated ultracapacitors. The proposed frequency response strategy utilizes the droop control and virtual inertial techniques while suboptimal power point tracking (SOPPT) is implemented in WECS. It can effectively regulate RAPS system frequency while alleviating high rate of change of power (ROCOP) and thus stress on both the conventional generators and wind turbines under frequency disturbances.

show abstract

“…The coordination of ESs in HESS can be categorized as passive [7], semi-active [15] or active [3,8,12]. The active coordination is the superior as it eliminates the match between ESs terminal voltages and system bus voltage.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Control of Hybrid Energy Storage System in DC Microgrids

Xiao

Wang

Setyawan

2015

IEEE Trans. Ind. Electron.

235

View full text Add to dashboard Cite

Hybridization of energy storages (ESs) with different characteristics takes advantages of all ESs. Centralized control with high/low pass filter (HPF/LPF) for system net power decomposition and ESs power dispatch is usually implemented in hybrid energy storage system (HESS). In this paper, hierarchical control of HESS, comprised of both centralized and distributed control, is proposed to enhance system reliability. The conventional HESS centralized control is refined with implementations of online iteration, secondary voltage regulation and autonomous state of charge (SoC) recovery. ESs power references are generated iteratively to maximize the utilizations of ESs ramp rates and power capacities. Secondary voltage regulation and autonomous SoC recovery are applied to minimize bus voltage deviation and limit slack terminal SoC variation, respectively. In case of communication failure, a novel algorithm for HESS distributed control is proposed to retain system operation. Bus voltage is regarded as the global indicator for system power balance and droop relationships are imposed for ESs control. System net power decomposition and ESs power dispatch are realized with localized LPFs. SoC recovery in distributed control is implemented by tuning the threshold voltage of slack terminal. A lab-scale DC microgrid is developed to verify the proposed hierarchical control of HESS.Index Terms-Hybrid energy storage system, DC microgrid, hierarchical control, net power decomposition, ESs power dispatch.

show abstract

A Hybrid System of Li-Ion Capacitors and Flow Battery for Dynamic Wind Energy Support

Cited by 117 publications

References 8 publications

Modeling, simulation and comparison of control techniques for energy storage systems

Modeling, simulation and comparison of control techniques for energy storage systems

Enhanced Frequency Response Strategy for a PMSG-Based Wind Energy Conversion System Using Ultracapacitor in Remote Area Power Supply Systems

Hierarchical Control of Hybrid Energy Storage System in DC Microgrids

Contact Info

Product

Resources

About