Power Control for Direct-Driven Permanent Magnet Wind Generator System with Battery Storage

Table 1

Wind power generation system parameters.

Parameters of 5 kW WGS
Generator stator resistance 𝑅𝑠/Ω	2.12
Generator stator inductance 𝐿𝑠/mH	0.035
Generator torque coefficient 𝑘𝑔	18.5
Generator electromotive force coefficient 𝑘𝑒	10.59
Generator pole pairs 𝑝	8
Generator rated power/kW	5
Battery capacity 𝐶/Ah	100
Battery internal resistance 𝑅𝑏/Ω	0.017
Buck-boost power 𝑃Boost/kW	3
Buck converter power 𝑃Buck/kW	5
Turbine loss coefficient 𝑘0	1.3856
Turbine loss coefficient 𝑘1	−0.068