Advances in Electrical Engineering

Research Article

Effect of DC Link Control Strategies on Multiterminal AC-DC Power Flow

Table 4

Study of IEEE-300 bus system with three-terminal HVDC network.


HVDC link		HVDC link specification		Power-flow solution
Rectifier bus	Inverter buses	Control strategy 7		AC terminal buses		HVDC variables
		Spec. values		ACSV		DCSV

68	173	(p.u.)	0.5		1.019		0.995
							0.9995
							0.05
		(p.u.)	0.1		−19.200		0.5525
							0.5025
							0.6025
	174	(p.u.)	1		1.0363		12.373
							22.275
							21.965
			1.06		−18.849		0.9256
							0.8809
			1.09		1.0315		0.9228
			1.05		−20.83	NI	11

		Control strategy 8		AC terminal buses		HVDC variables
		Spec. values		ACSV		DCSV

15	31	(p.u.)	0.04		1.0095		0.9996
							0.998
							0.2299
		(p.u.)	0.2		−9.0928		0.4299
							0.2004
							0.2404
	74	(p.u.)	1		1.0101		12.733
							21.787
							22.78
			1.04		−11.3		0.9525
							0.9249
			1.07		1.0224		0.9038
			1.08		−10.272	NI	11

		Control strategy 9		AC terminal buses		HVDC variables
		Spec. values		ACSV		DCSV

266	270	(p.u.)	0.4		0.9965		0.996
							0.997
							0.7025
		(p.u.)	0.3		−9.2266		0.4016
							0.3009
							0.7025
	271	(p.u.)	1		0.9966		1.0437
							1.1118
							1.1358
		(deg.)	5		−9.1557		0.9576
							0.9025
		(deg.)	15		0.9362		0.9376
		(deg.)	15		−7.6891	NI	6