Design, development and operation of a PHIL environment for Distributed Energy Resources

Kotsampopoulos, Panos; Kleftakis, Vasilis; Messinis, George M.; Hatziargyriou, Nikos D.

doi:10.1109/iecon.2012.6389005

Cited by 45 publications

(25 citation statements)

References 17 publications

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“…Several proposals in the application of HIL to power electronics system can be found in the scientific literature [1], [2], some of which emphasize on the grid integration [3], but in general those proposals are focused on the device testing in an simulated grid environment [4].…”

Section: Introductionmentioning

confidence: 99%

A Power-HIL microgrid testbed: Smart energy integration lab (SEIL)

Huerta

Gruber

Prodanović

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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Grid integration of distributed energy resources (DERs) is gaining importance in the field of power electronics research. Experimental evaluation of control strategies and detailed evaluation of power interfaces usually require significant allocation of time and resources. This is where the power-hardware-in-the-loop (PHIL) techniques help accelerate control design and evaluation processes. The paper presents a PHIL based microgrid testbed: Smart Energy Integration Lab (SEIL); that has been specifically constructed for studying grid integration aspects of DERs with a focus on system dynamic performance and power dispatch scenarios. The SEIL is equipped with a remotely controlled network configuration, power electronics converters, passive loadbanks, a battery storage system and real time control and acquisition systems that allow emulation of several microgrids and connection of several DERs at the same time. To demonstrate the functionality of the SEIL, the experimental results for two typical scenarios were used: a power dispatch scenario in a microgrid and a wind turbine operation in grid connection.

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Section: Introductionmentioning

confidence: 99%

A Power-HIL microgrid testbed: Smart energy integration lab (SEIL)

Huerta

Gruber

Prodanović

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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“…Real time simulations and especially PHIL allow for testing and validation of the electrical properties of power system devices such as converters, wind energy generators, hybrid and energy storage systems. This kind of experimenting gives the possibility to test repeatedly and analyze the behavior of the physical device, very close to realistic conditions [3][4][5]. For instance, the hardware part can be subjected to several simulated fault incidents and its resulting response can be verified.…”

Section: Introductionmentioning

confidence: 99%

“…Several researches involve the PHIL concept using the Real Time Digital Simulation (RTDS) [6] as a powerful tool to perform flexible and high-speed real time simulations [1][2][3], [7][8][9][10][11][12][13][14]. RTDS uses a graphical environment to build up the simulated network of any complexity.…”

Section: Introductionmentioning

confidence: 99%

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Real-Time Simulation Technique of a Microgrid Model for DER Penetration

Mentesidi¹,

Rikos²,

Kleftakis³

2014

EAI Endorsed Transactions on Energy Web

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Comprehensive analysis of Distributed Energy Resources (DER) integration requires tools that provide computational power and flexibility. In this context, throughout this paper PHIL simulations are performed to emulate the energy management system of a real microgrid including a diesel synchronous machine and inverter-based sources. Moreover, conventional frequency and voltage droops were incorporated into the respective inverters. The results were verified at the real microgrid installation in the Centre for Renewable Energy Sources (CRES) premises. This research work is divided into two steps: A) Real time in RSCAD/RTDS and Power Hardware-in-the-Loop (PHIL) simulations where the diesel generator´s active power droop control is evaluated, the battery inverter´s droop curves are simulated and the load sharing for parallel operation of the system´s generation units is examined. B) microgrid experiments during which various tests were executed concerning the diesel generator and the battery inverters in order to examine their dynamic operation within the LV islanded power system.

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“…A lead compensator block to idealize the interface to unity gain improving the accuracy of the simulation and in consequence being an interface compensation method is presented in [1]. In [2] and [3], the compensation block is a low-pass filter introduced in the feedback signal to improve the stability of the different applications, but as consequence the accuracy is affected. A multi-rating interface compensation method for the improvement of stability is presented in [4], and a comparison of the main stabilization methods used for PHIL simulation with ideal transformer method (ITM) interfaces in [5], where it is concluded that the method which presents more accurate results is the multirating interface.…”

Section: Introductionmentioning

confidence: 99%

Harmonic-by-harmonic time delay compensation method for PHIL simulation of low impedance power systems

Guillo-Sansano

Roscoe

Burt

2015

2015 International Symposium on Smart Electric Distribution Systems and Technologies (EDST)

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Abstract--In PHIL simulations different time delays are introduced. Although it can be reduced, there is always some time delay. As a consequence, when the device under test is part of a low impedance power system such as: microgrids, marine or aero power systems, the simulation process becomes challenging due to the poor accuracy of the results achieved by the introduction of the time delay. Therefore, in order to accurately compensate for the inherent time delay introduced in Power Hardware in the Loop (PHIL) simulations, a method based on phase-shifting the reference voltage signal harmonic-byharmonic and phase-by-phase is proposed. In this manner the time delay compensation will not affect to the system topology and therefore the dynamic behaviour of the original system will stay as it originally was in terms of power angles and V-I phase relationships for all the harmonics processed. In this paper, an experiment where the reference voltage is altered with 5 th and 7 th harmonics shows that the accuracy of PHIL simulations after the application of this compensation method is greatly improved compared with traditional methods. As a result, low impedance power systems are now able to experience an accurate PHIL simulation.Index Terms--Harmonic compensation, interface algorithm, power hardware in the loop, PHIL, real time simulation, accuracy, stability, simulation time delay, low impedance power system.

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Design, development and operation of a PHIL environment for Distributed Energy Resources

Cited by 45 publications

References 17 publications

A Power-HIL microgrid testbed: Smart energy integration lab (SEIL)

A Power-HIL microgrid testbed: Smart energy integration lab (SEIL)

Real-Time Simulation Technique of a Microgrid Model for DER Penetration

Harmonic-by-harmonic time delay compensation method for PHIL simulation of low impedance power systems

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