Chained hybrid energy storage system with LC tuned filter and control method thereof
A hybrid energy storage system, chain-type technology, applied to harmonic reduction devices, AC networks to reduce harmonics/ripples, energy storage, etc., can solve high cost, difficult supercapacitor energy, weak power output capacity of batteries, etc. problem, to achieve 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] Such as 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 hybr...
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