Solar photovoltaic system requires charge controller to store generated electrical energy to the battery bank. Figure 1 shows a Maxwell bridge which can be used to measure unknown inductance, L, in a power electronic circuit in a charge controller. (a) Based on Figure 1, analyse the value of R, and L (b) If R₁=3000, C₁=0.15µF, R=3000, while R, is adjustable between 3000 and 3kn, evaluate the range of the inductance, Ls. (c) Then, if the power supply frequency is set to 5kHz, analyse the Q factor of the inductor Ls at its minimum value.

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Question 1
Solar photovoltaic system requires charge controller to store generated electrical energy to
the battery bank. Figure 1 shows a Maxwell bridge which can be used to measure unknown
inductance, L, in a power electronic circuit in a charge controller.
(a) Based on Figure 1, analyse the value of R₁ and L₁
(b) If R₁=3000, C3=0.15µF, R4-3000, while R3 is adjustable between 3000 and 3kn,
evaluate the range of the inductance, Ls
(c) Then, if the power supply frequency is set to 5kHz, analyse the Q factor of the inductor
Ls at its minimum value.
E
23
Z₁
R3
R1
C3
Figure 1
D
51
RS
R₂
22
www
ZA
Transcribed Image Text:Question 1 Solar photovoltaic system requires charge controller to store generated electrical energy to the battery bank. Figure 1 shows a Maxwell bridge which can be used to measure unknown inductance, L, in a power electronic circuit in a charge controller. (a) Based on Figure 1, analyse the value of R₁ and L₁ (b) If R₁=3000, C3=0.15µF, R4-3000, while R3 is adjustable between 3000 and 3kn, evaluate the range of the inductance, Ls (c) Then, if the power supply frequency is set to 5kHz, analyse the Q factor of the inductor Ls at its minimum value. E 23 Z₁ R3 R1 C3 Figure 1 D 51 RS R₂ 22 www ZA
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