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SCIENTIA SINICA Informationis, Volume 48 , Issue 10 : 1381-1394(2018) https://doi.org/10.1360/N112018-00071

Distributed coordinated predictive control for microgrids with seawater desalination system

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  • ReceivedJun 20, 2018
  • AcceptedJul 10, 2018
  • PublishedOct 26, 2018

Abstract


Funded by

中央高校基本科研业务费专项基金(2017ZZD004)

北京市自然科学基金(4173079)


References

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  • Figure 1

    The structure diagram of micro-grid and seawater desalination system

  • Figure 2

    The equivalent circuit diagram of battery

  • Figure 3

    The ideal environment conditions and the freshwater demand. (a) Wind speed; (b) temperature; (c) illumination; (d) freshwater demand

  • Figure 4

    The output power of micro-grid power generation subsystem under ideal environment. (a) Output power of wind generation subsystem; (b) output power of photovoltaic generation subsystem; (c) output power of wind and photovoltaic generation subsystem (solid line), total power demand (dash line) and output power of battery (dotted line)

  • Figure 5

    The terrible environment conditions and the freshwater demand. (a) Wind speed; (b) temperature; (c) illumination; (d) freshwater demand

  • Figure 6

    The output power of micro-grid power generation subsystem under terrible environment. (a) Output power of wind generation subsystem; (b) output power of photovoltaic generation subsystem; (c) output power of wind and photovoltaic generation subsystem (solid line), total power demand (dash line) and output power of battery (dotted line)

  • Table 1   The key parameters of micro-grid and seawater desalination system
    Parameter Value Parameter Value
    Fluid density ($\rho_{w}$) 1007 kg/m$^{3}$ Number of PV cells ($n_{s}$,$n_{p}$) (200, 5)
    Pipe cross-sectional area ($A_{p}$) 1.27E$-$4 m$^{3}$ Reverse saturation current ($I_{\rm~rs}$) 3.27 A
    Membrane area ($A_{s}$) 15.6 m$^{3}$ Deviation of P-N junction ($A$) 1.6
    Overall power efficiency ($\eta$) 0.9 Temperature of P-N junction ($T$) 301.18 K
    PMSG number of poles ($P$) 28 Converter capacitance ($C$) 1000 $\mu$F
    Turbine radius ($R$) 1.84 Converter inductance ($L$) 4 mH
    Stator windings resistance ($R_{s}$)0.3676 $\Omega$ Battery equivalent resistance ($R_{b}$) 14 m$\Omega$
    Stator windings inductance ($L$) 3.55 mH Battery equivalent capacitance ($C_{b}$)1.8E+5 F
    Stator windings flux ($\phi_{m}$) 0.2867 Wb Battery equivalent voltage ($E_{b}$) 48 V
    Rotational inertia ($J$) 7.856 kgm$^{2}$