may be performed by the detector 201 or the ramp rate limiter 202 in comparison with the external power reference 253 the internal generator reference 251 is an internal reference i e a reference used only internally in a given wind turbine the generator reference 251 may in some situations be identical the external power reference 253 in other situations the generator reference 251 have been restricted relative to the external power reference 253 e g by the ramp rate limiter 202 fig3 a illustrates an alternative configuration of the wind turbine 100 wherein the ramping control system 200 is arranged as a component of the power production controller 210 fig3 b illustrates an yet another alternative configuration of the wind turbine 100 wherein the power production controller 210 is omitted and the ramping control system 200 is arranged to receive the external power reference 253 directly from the central controller e g the ppc the ramping control systems 200 in fig2 a and 3b are configured equivalently to restrict the rate of change of the outputted generator reference 251 from the ramp rate limiter 202 based on an input power reference being in the form of the external power reference 253 the intermediate generator reference 251 a or other reference derived from the external power reference 253 fig4 illustrates the function of the ramp rate limiter 202 the ramp curve 401 illustrates that power variations over.