Distributed stabilization in DC hybrid power systems

Jamshidpour, Ehsan; Nahid‐Mobarakeh, Babak; Poure, Philippe; Pierfederici, Serge; Saadate, Shahrokh

doi:10.1109/vppc.2011.6043126

Cited by 7 publications

(10 citation statements)

References 31 publications

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“…Nonlinear control methods are also used to solve this problem based on synergetic control [16], sliding mode control [17,18], phase-plane analysis [19] and T-S multi-modeling [20]. A compensation method using output voltage has been presented in [7,9], use of a virtual resistance and virtual inductance were presented in [21,22], use of a virtual capacitor was introduced in [8,23], and a global stabilization method using Lyapunov equation is proposed in [24]. This paper presents a novel stabilizer technique to suppress the oscillation and stabilize the system.…”

Section: Power System Modelmentioning

confidence: 99%

“…This paper presents a novel stabilizer technique to suppress the oscillation and stabilize the system. Compared to the methods mentioned in [1,3,7,9,18], the proposed method offers two innovative improvements. Firstly, instead of generating the stabilizing signal by the output voltage or the capacitor voltage, the proposed method uses the input filter inductance current.…”

Section: Power System Modelmentioning

confidence: 99%

“…Instead of controlling the voltage, the energy stocked in the capacitance is controlled [7,9,25]. The external loop (energy loop) first generates the error signal by comparing E (0.5 CVo 2 ) and Eref (0.5 CVref 2 ).…”

Section: Control and Design Of Stabilizermentioning

confidence: 99%

See 2 more Smart Citations

Analysis and Design of an Active Stabilizer for a Boost Power Converter System

et al. 2016

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Abstract:In electrical power converter systems, the presence of an LC input filter can efficiently reduce the Electromagnetic Interference (EMI) effect, and at the same time protect the converter and the load from being impacted by sharp input impulse voltages. However, for transportation applications, the weight and size limitations of input LC filters for power converters have to be taken into consideration. The reduction of LC filter size may impair the system stability margin and dynamic response. In serve cases, the system may even become unstable. Thus, in order to ensure the system stability while minimizing the input LC filter size, the implementation of a stabilizer for the system control is needed. In this paper, a novel digital stabilizer design method is proposed for a boost power converter with a small input LC filter. The proposed method is based on input filter inductance current measurements and DSP (Digital Signal Processor) -based digital stabilizer design. Simulation and experimentation confirm the validity of the proposed approach.

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Section: Power System Modelmentioning

confidence: 99%

Section: Power System Modelmentioning

confidence: 99%

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Analysis and Design of an Active Stabilizer for a Boost Power Converter System

et al. 2016

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“…Recently, the above mentioned concepts have been applied to developing stabilizing controllers for systems involving multiport DC busses [2], [8], [16], while systematic derivation of multiple-input-multiple-output (MIMO) models for the DC bus has mostly been disregarded. As the number of ports increases, developing state-space equations or transfer functions becomes laborious without a systematic approach.…”

Section: Introductionmentioning

confidence: 99%

Modeling of multiport DC busses in power-electronic systems

Liukkonen

Hinkkanen

Kyyrä

et al. 2013

2013 IEEE International Conference on Industrial Technology (ICIT)

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Abstract-This paper deals with dynamic modeling of multiport DC busses, which are increasingly applied in various DCpower distribution systems, such as hybrid powertrains and DC microgrids. Parasitic impedances of long DC cabling together with distributed DC capacitors introduce a potential risk of smallsignal instabilities in the DC bus, if resonance frequencies of the bus appear below (or around) switching frequencies of powerelectronic converters. In order to predict the resonance behavior of the bus, a systematic approach for dynamic modeling of the DC bus in power-electronic systems is presented. The DC-bus model is validated by means of experiments. Furthermore, application of the model in small-signal analysis and time-domain simulations is illustrated.

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“…Solutions are available in the literature to ensure the system stability in the case of the interaction between an uncontrolled DC-bus and a CPL [11][12][13][14][15] and for a controlled DC-bus and a CPL [16][17][18]. Other works deal with the small-signal [19] [20] or large-signal [21] stabilization of a DC-power network.…”

Section: Introductionmentioning

confidence: 99%

A design method for a fault-tolerant multi-agent stabilizing system for DC microgrids with Constant Power Loads

Magne

Nahid‐Mobarakeh

Pierfederici

2012

2012 IEEE Transportation Electrification Conference and Expo (ITEC)

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It is known that DC-power systems containing Constant Power Loads (CPLs) could become unstable under some conditions. This instability phenomenon is due to the interaction between the network structure and the negative impedance created by the CPLs. To ensure the system stability, we propose in this paper a method which permits to design a fault-tolerant stabilizing system for a DC-microgrid with CPLs. First, it consists in the implementation of local stabilizing agents on the CPLs. Then, using a constrained optimization problem, a method to design the stabilizing system is proposed. It permits to consider many fault cases as system reconfiguration or agent failure. To illustrate the method, it is implemented on test bench and experimental results are given to confirm its efficacy. NOMENCLATURE Ȝ eigenvalues of the matrix A ଙsmall-signal variations of operating (equilibrium) point of i-th optimization algorithm constraint CPL i operating power (defined by the system user) CPL i stabilizing power power absorbed by the CPL i (= )

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Distributed stabilization in DC hybrid power systems

Cited by 7 publications

References 31 publications

Analysis and Design of an Active Stabilizer for a Boost Power Converter System

Analysis and Design of an Active Stabilizer for a Boost Power Converter System

Modeling of multiport DC busses in power-electronic systems

A design method for a fault-tolerant multi-agent stabilizing system for DC microgrids with Constant Power Loads

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