METHOD FOR CONTROL OF STATIC STABILIZED AC VOLTAGE SOURCES OPERATING IN PARALLEL TO COMMON LOAD Russian patent published in 2005 - IPC

FIELD: can be used in construction of systems of electric power generation, in which for provision of reliability of electric power supply and enhancement of the output power static stabilized sources of electric power are connected in parallel to a common load.

SUBSTANCE: instantaneous values of voltage at a common load and currents of sources are measured, active and reactive components of the powers of the sources are measured, standard voltages of the amplitude and phase of the control signal are formed, additional signals of the amplitude and phase of the control signal are formed, signals of comparison of the amplitude and phase are formed by integration of the difference of the respective standard signals and additional signals, in proportion to the respective signals of comparison the amplitude and the phase of control signal, standard voltages of the amplitude and phase of one of parallel operating sources are formed, responsible for stabilization of the parameters of the common voltage, formed constant and corresponding to the rated values of the voltage parameters, the additional signals of this source are formed respectively in proportion to the amplitude and phase of the common voltage, and for each of the rest parallel-operating sources the standard voltages, amplitudes and phases are formed in proportion respectively to the active and reactive components of the source power responsible for stabilization of the parameters of the common voltage, with a coefficient of proportionality equal to the ratio of the rated full powers of each source and the source stabilizing the voltage parameters, and the additional signals of the amplitude and phase of the rest sources are formed equal-respectively to the active and reactive components of their power.

EFFECT: enhanced accuracy of distribution of the load power components between the sources in proportion to their rated powers at preservation of the accuracy of stabilization of the parameters of the common voltage in the static condition.

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