A critical survey of technologies of large offshore wind farm integration: summary, advances, and perspectives

Protection and Control of Modern Power Systems

Table 2 Reviews of FRT technologies of HVAC

References	Generator systems			Fault type		Control type		Objectives	Performance	Economy	Complexity	Superiority
References	DFIG	PMSG	SCIG	HVRT	LVRT	Controller	External device	Objectives	Performance	Economy	Complexity	Superiority
Yuan et al. [44]	√			√	√	√		• Rotor current • Inductive reactive of DFIG	• Maximum reactive power support enhanced • Voltage swell suppressed	***	****	***
Liu et al. [48]		√			√	√		• Static Var System • Point of common coupling (PCC)	• Voltage support achieved	**	***	***
Tian et al. [39]	√			√	√	√		• Rotor voltage • Active power and reactive power	• Transient stability increased • FRT capability ensured	***	****	***
Hussein et al. [49]	√			√	√		√	• Static synchronous compensator (STATCOM) • PI controller	• Compensation of reactive power enhanced • Voltage compensation increased	**	****	***
Guo et al. [50]	√				√		√	• Rotor side converter (RSC) • Line side converter • STATCOM	• Reactive power capability enhanced • Dynamic voltage stability improved • Voltage recovery helped	***	***	**
Harsh et al. [36]			√		√		√	• Delta connected capacitors • Static synchronous series compensator	• Reactive compensation and high power ensured • Steady-state active power increased	**	***	****
Mònica et al. [51]		√		√	√	√		• Full power converter • Voltage angle difference	• Disturbances of voltage sag alleviated • FRT capability improved	***	***	****