Energy Systems

, Volume 6, Issue 2, pp 153–172 | Cite as

A novel structure proposal for distributed generation using SMES and PV system with relative controllers design

Original Paper
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Abstract

A combined power source including superconductor magnetic energy storage system (SMES) and photovoltaic (PV) systems has been considered for distributed generation system as a hybrid power source in this research. Both power sources have been connected to power grid and some controllers have been designed for power injection control. The SMES system can be in charging mode via PV system and power grid. Moreover, power injection controller has been designed for tuning of produced power of PV and SMES system. For this aim, a DC/DC converter has been connected to PV system and a bi-directional-three-level chopper has been used for SMES. PV power control has been based on the DC/DC converter control and the chopper control has been used for SMES power control. On the other hands, inverter control has been confirmed for injection of active/reactive power from distributed generation system to power grid. Proposal of a new scheme and design of a novel controller, are the advantages of this research. Finally, a series of simulation results have been shown.

Keywords

PV system SMES Bi-directional-three-level chopper Chopper switching Three level inverter Power injection 

List of symbols

\(A\)

The ideal coefficient related to photovoltaic cell model

\(I_{SMES}\)

The battery current

\(I_{PH}\)

The current source related to photovoltaic system model

\(I_{SC}\)

The short circuit current of the diode used in the photovoltaic cell model

\(I_{RS}\)

The short reversed saturated current of the diode used in the photovoltaic cell model

\(K\)

Boltzmann constant

\(K_{I}\)

The temperature effect coefficient on the current of used diode in the photovoltaic cell model

\(N_{s}\)

The number of series cells in photovoltaic package

\(N_{p}\)

The number of parallel cells in photovoltaic package

\(P_{PV}\)

The power of photovoltaic system

\(P_{Tr}\)

The transmitted active power from the distributed generation system into the power grid

\(P_{PV{\text{- }}Max}\)

The maximum accessible power from the photovoltaic system

\(q\)

The numerical value of electron

\(Q_{Tr}\)

The transmitted reactive power from the distributed generation system into the power grid

\(R_{s}\)

The series resistor of each diode in photovoltaic package

\(R_{sh}\)

The parallel resistor of each diode in photovoltaic package

\(T_{c}\)

The temperature of the environment in photovoltaic system

\(T_{ref}\)

The reference temperature in photovoltaic system model

\(V_{c1}, V_{c2}\)

DC-link capacitors voltage

\(V_{DC}\)

The DC-link voltage which is equal to the addition of the capacitors voltage

\(f\)

The base frequency(the frequency of the inverter’s modulation waves)

\(f_{0}\)

The resonance frequency of LCL filter

\(\varphi \)

The phase angle of the inverter’s modulation waves

\(\lambda \)

The radiation coefficient in photovoltaic system model

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Shahid Rajaee Teacher Training UniversityTehranIran

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