Yes, the PCA63511 and nRF6707 is the same, it's just two different format names of the PPK. In order to flash the correct Power Profiler software onto your PPK (PCA63511), the easiest way would be to mount it onto a DK (Development Kit) that is prepared for the PPK (see PPK User Guide for details). Then, open the nRFConnect for Desktop and its Power Profiler application and choose the device. If the correct firmware is not already on your PPK, you should get a prompt saying that the PPK needs to be programmed in order to proceed. Press "Yes" on the prompt, and the application will flash the firmware for you and start the Power Profiler.
