A chain-type hybrid energy storage system containing an lc tuned filter and its control method
A hybrid energy storage system, chain technology, applied in harmonic reduction devices, AC networks to reduce harmonics/ripples, energy reserves, etc. Realize the effect of power exchange
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[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0034] like figure 1 A chain-type hybrid energy storage system is shown, including several supercapacitor energy storage units, several battery energy storage units, several capacitor power units, output inductor 1, AC bus 2, LC tuned filter 3, current detection unit 4 , voltage detection unit 10 and controller 11 . Wherein: each supercapacitor energy storage unit is composed of a supercapacitor 8 correspondingly connected in parallel with an input terminal of a cascade converter 6 . Each battery energy storage unit is composed of a battery 9 correspondingly connected in parallel with an input end of a cascaded converter 6 . Each capacitor power unit is composed of a capacitor 7 connected in parallel with a full-bridge converter 5 . All supercapacitor energy storage units, battery energy storage units, and capacitor power units form a chain hybrid ...
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