How do I connect iPad to Epson workforce 545

if the printer supports air print you only need to connect it to the same network as your iPad. There are no other drivers or software needed

Use AirPrint to print from your iPhone, iPad, or iPod touch - Apple Support

The Epson Workforce 545 is a supported AirPrint Printer according to Apple's list herE: About AirPrint - Apple Support

So as said, all you would need to do is connect it to the same Wifi network as the iPad and it should appear as an option to print from any apps that support printing.