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The paper reveals that while the equivalent circuit, representing the load side reflected low-frequency dynamics of a wind turbine generator, is similar to the electrical equivalent circuit of a photovoltaic generator, their dynamic resistances possess different behavior. While the incremental conductance of a photovoltaic generator does not change sign with terminal voltage variations, zero-crossing...
The letter reveals that when low-frequency dynamics of a wind turbine generator are reflected to the load side, the resulting electrical equivalent circuit is similar to a typical solar generator equivalent circuit. The finding allows drawing a parallel between the corresponding energy conversion processes, as well as applying advanced methods of analyzing and controlling photovoltaic generators to...
The paper presents a method to compensate effects caused by slow varying loads and plant parameters drift as well as by detuned controller using a simple yet robust algorithm in voltage controlled electric drives. In case of known variations an analytical expression of pre-computed feed-forward compensation voltage is derived, while in presence of unknown disturbances the control algorithm uses a...
The paper presents a method to obtain effects similar to those obtained by real mechanical loading, actuator and measurement noises and parameter variation but without any mechanical parts supplementary to the electric motor of the studied electric drive and without actually changing any electrical or mechanical parameter of the motor. The motor drive itself produces the load torque, noises and the...
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