Coordination control method capable of enabling super-capacitor energy storage system to participate in electric power primary frequency modulation
A technology of super capacitor and energy storage system, applied in the field of electric power system, can solve the problems of attenuation and adjustment difference of adjustment effect, inability to adjust the system frequency, affecting the quality of primary frequency modulation, etc.
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[0057] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0058] The main idea of the present invention is to install the supercapacitor energy storage system on the busbar side of the traditional generating set that needs to be matched, and obtain the real-time grid frequency data f from the synchronous vector measurement unit (Phasor Measurement Unit, PMU) i , make difference with 50Hz, get frequency deviation Δf i . with Δf i in f SQ.下限 i SQ.上限 The inner is the control goal, to meet the transient and steady-state performance of the primary frequency modulation, and to maintain the good charging / discharging capacity and good voltage level of the supercapacitor energy storage system as the control principle. First, judge the real-time grid frequency deviation Δf i Whether to cross the frequency dead zone of the traditional generator set, if the frequency dead zone is cros...
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