Research on Reactive Power Optimization Control Method for Distribution Network with DGs Based on Improved Second-Order Oscillating PSO Algorithm

Table 4

Average power purchased from the main grid.

	Before optimization	SOOPSO with constriction factor	SOOPSO with linear inertia coefficient	Standard PSO
Average active power purchased from the main grid	0.4362	0.4234	0.4289	0.4311
Average reactive power purchased from the main grid	0.3043	0.0678	0.0787	0.0989