Sliding-Mode Control of the PWM Audio Amplifier
The filter output voltage v0, divided by the amplifier gain (l/kv), must follow a reference vor. Defining the output error as ev0 = vor –kvv0, and also using its time derivatives (eθ,eγ,eβ) as a new state vector ε = [ev0, eθ, eγ, eβ], the system equations, in the phase canonical (or controllability) form, can be written in the form as follows
(36.128)
Sliding-mode control of the output voltage will enable a robust and reduced-order dynamics, independent of semiconductors, power supply, filter, and load parameters. According to Eqs. (36.91) and (36.128), the sliding surface is
(36.129)
In ...
Get POWER ELECTRONICS HANDBOOK, 3rd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
