Abstract
One of the primary concerns of distribution system operator (DSO) is minimization of power loss. This work investigates the coordinated planning of distributed generation (DG) and distribution static compensator (D-STATCOM) for reduction of distribution system power loss. To achieve the optimal siting and rating of the DG and D-STATCOM, an improved grey wolf optimization (IGWO) has been proposed. To reduce the computational burden and search space in IGWO, the active and reactive power loss sensitivity factors has been employed. Besides, the impact of polynomial loads and mesh distribution network have been considered. The proposed algorithm’s performance has been tested on IEEE 33 bus distribution systems for validation. The test results emphasize the importance of combined allocation of DG and D-STATCOM in minimization of power loss and voltage profile improvement. Further, IGWO produces superior results than the conventional GWO and particle swarm optimisation (PSO).
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Abbreviations
- N bus , N dg , N DSTAT :
-
total number of buses, DGs and D-STATCOM respectively
- \(Z_{i}^{p} ,I_{i}^{p} ,P_{i}^{p}\) :
-
ZIP active power coefficients at ith bus respectively
- \(Z_{i}^{q} ,I_{i}^{q} ,P_{i}^{q}\) :
-
ZIP reactive power coefficients at ith bus respectively
- V min , V max :
-
voltage magnitude minimum and maximum limits respectively
- \(P_{DG}^{\min } ,P_{DG}^{\max }\) :
-
Minimum and maximum DG active power respectively
- \(Q_{DSTATCOM}^{\min /max}\) :
-
Minimum and maximum D-STATCOM reactive power respectively
- P loss , Q loss S loss :
-
active power, reactive power and apparent power losses respectively
- P grid, Q grid :
-
active power, reactive power taken from grid respectively
- P DG, k :
-
DG active power at kth bus
- P dem, i, Q dem,i :
-
active power, reactive power demand at ith bus respectively
- Q DSTATCOM, k :
-
D-STATCOM reactive power at kth bus
- V i , V n :
-
voltage at ith bus, nominal voltage magnitude
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Prasad, P.S., Sushama, M. (2022). Coordinated Planning of DG and D-STATCOM in Distribution System Considering Polynomial Load Models. In: Mekhilef, S., Shaw, R.N., Siano, P. (eds) Innovations in Electrical and Electronic Engineering. ICEEE 2022. Lecture Notes in Electrical Engineering, vol 894. Springer, Singapore. https://doi.org/10.1007/978-981-19-1677-9_50
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