Abstract
In the realm of energy economics and microgrid management, optimizing the multi-objective economic emission dispatch (EED) holds paramount importance. However, the integration of renewable energy sources (RES) introduces challenges due to their inconsistent and unpredictable behaviour. To address this, a novel EED model for microgrids with high RES penetration is developed, aiming to minimize operating fuel costs and pollution while maximizing RES output power availability. Wind and solar energy outputs are modelled using probability density functions, and the 2-m point estimation method is employed for estimation. The complex probabilistic EED model is tackled using an equilibrium optimization approach, tested on microgrid configurations with varying numbers of thermal generators coupled with wind–solar units. Results indicate that the proposed algorithm outperforms other recent techniques, demonstrating quicker convergence and effective handling of EED issues.
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Abbreviations
- \(a_{i}\), \(b_{i}\), \(c_{i}\), \(e_{i}\), \(f_{i}\) :
-
Cost variable of the ith thermal unit
- \(S_\textrm{rad,stc}\) :
-
Solar radiation in normal circumstances
- N :
-
Count of connected generators
- \(S_\textrm{P,stc}\) :
-
Solar power in normal circumstances
- Ti:
-
Generated power of ith thermal generator in MW
- \(\gamma \) :
-
Temperature variable in %/\(\circ \)C
- \(W_\textrm{p}\), \(S_\textrm{p}\) :
-
Generated power of wind–solar in MW
- \(T_\textrm{cell}\) :
-
The degree of heat in a solar cell
- \(C_\textrm{w}\) :
-
Cost variable of wind in $/h
- \(T_\textrm{cell,stc}\) :
-
The solar cell’s temperature under the usual test conditions
- \(N_\textrm{W}\), \(N_\textrm{s}\) :
-
Count of wind and solar unit
- NOT:
-
The cell’s typical operating temperature
- Bidl:
-
Bid price of lth solar unit
- \(N_\textrm{sc}\), \(N_\textrm{pc}\) :
-
Number of solar cells in series and parallel
- TL:
-
Transmission loss
- \(\mu \),\(\sigma \) :
-
The average and standard deviation
- TD:
-
Power requirement
- \(I_\textrm{k}\) :
-
Input constant
- \(B_{ij}\), \(B_{0i}\), \(B_{00}\) :
-
Loss matrix
- \(S_\textrm{e}\) :
-
Total electricity production, including solar and wind
- \(T_\textrm{imin}\), \(T_\textrm{imax}\) :
-
Boundary limit minimum–maximum power ith unit
- \(z_\textrm{l}\) :
-
Uncertainty in the input variable
- \(S_\textrm{hp}\), \(S_\textrm{cp}\) :
-
Weibull variables
- Qi(t), Qj(t):
-
Charges of ith and jth fleck
- \(v, v_\textrm{r}\) :
-
Instant and rated haste of wind unit
- \(P_\textrm{pv,av}\) and \(P_\textrm{pv,kt}\) :
-
Available and estimated output power of kth solar unit
- \(v_\textrm{in}, v_\textrm{out}\) :
-
Cut in–cut out the haste of wind unit.
- \(C_\textrm{pv}\) :
-
Cost constant for kth solar unit
- \(W_\textrm{p}, W_\textrm{pt}\) :
-
Instant and rated power of wind unit
- \(R_{ij}(t)\) :
-
The distance in Euclid between two particles
- \(\omega \),\(\psi \) :
-
Beta variables
- \(P_\textrm{Wj,av}\) and \(P_\textrm{Wd,jt}\) :
-
Available and estimated output power of jth wind unit, respectively
- \(\Gamma \) :
-
Gamma objectives
- \(K_\textrm{p,wd}, K_\textrm{r,wd}\) :
-
Penalty factors for underestimation and overestimation of wind power
- \(S_\mathrm{rad(t)}\) :
-
Cellular solar radiation at time t
- \(\alpha _\textrm{iT}\), \(\beta _\textrm{iT}\), \(\gamma _\textrm{iT}\), \(\zeta _\textrm{iT}\), \(\lambda _\textrm{iT}\) :
-
emission parameter
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Soni, J., Bhattacharjee, K. A multi-objective economic emission dispatch problem in microgrid with high penetration of renewable energy sources using equilibrium optimizer. Electr Eng (2024). https://doi.org/10.1007/s00202-024-02526-1
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DOI: https://doi.org/10.1007/s00202-024-02526-1