On our induction stove, just a regular silicon mat under heavy cookware is good to protect the surface. EM easily passes through the mat & still direct heats the cookware. Those mats are useful! Baking, candy, and now this. 
@yurkevich I imagine the mat reduces induction efficiency & thus might cause the element to warm up a bit more, but literally a small price to pay to greatly reduce or prevent damage the ceramic top. Def a nice option to have that standard electric ceramic tops will never have.