A kind of hybrid energy-storing source current chop control system

A kind of hybrid energy-storing source current chop control system

  • CN 108,512,240 A
  • Filed: 05/15/2018
  • Published: 09/07/2018
  • Est. Priority Date: 05/15/2018
  • Status: Active Application
First Claim
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1. a kind of hybrid energy-storing source current chop control system, including hybrid energy-storing power supply (1) and DC/AC inverters (2),It is characterized in that:

  • Further include electric current thresholding detection (4), chop control module (5), inversion drive module (6) and busbar voltage detection(7), the hybrid energy-storing power supply (1) provides electric current by DC/AC inverters (2) to load (3);

    The busbar voltage inspectionSurvey the output busbar voltage u of (7) detection hybrid energy-storing power supply (1)hess(t) and chop control module (5) is sent to;

    The electricityBasin value detection (4) is loaded the operating current i (t) of (3) and sends chop control module (5) to;

    The chop controlOutput busbar voltage u of the module (5) to the super capacitor group (1) of feedingsu(t) and load (3) needed for operating current i (t) intoThrough by inversion drive module (6) driving DC/AC inverters (2) after row processing;

    The processing being wherein arranged in chop control module (5)Rule is:

    (a) as the output busbar voltage u of hybrid energy-storing power supply (1)hessmin<

    uhess(t) when, and the work needed for load (3) is electricFlow i (t)≤

    ihessmaxWhen, it is i to load the operating current i (t) needed for (3) and provided by hybrid energy-storing power supply (1)hess(t)=i(t), chop control module (5) output signal is open-minded by inversion drive module (6) control DC/AC inverters (2) at this time, mixingThe output current i of accumulation power supply (1)hess(t) rapid increase, as the output current i of hybrid energy-storing power supply (1)hess(t) reach i1When, chop control module (5) output signal controls DC/AC inverters (2) by inversion drive module (6) and turns off, hybrid energy-storingThe output current i of power supply (1)hess(t) start to decay, as the output current i of hybrid energy-storing power supply (1)hess(t) i is decayed to2When;

    DC/AC inverters (2) are again open-minded, by way of current chopping, loaded work piece electric current kept to stablize in i2

    i (t) <

    i1

    (b) as the output busbar voltage u of hybrid energy-storing power supply (1)hess(t) <

    uhessminWhen, DC/AC inverters (2) shutdown mixesClose the output current i of accumulation power supply (1)hess(t)=0.In formula, uhessminFor hybrid energy-storing power supply (1) minimum voltage;

    ihess(t) it is the electric current of hybrid energy-storing power supply (1) output;

    i(t) it is the operating current for loading (3), i1For the thresholding upper limit of load (3), i2For the thresholding lower limit of load (3);

    Wherein, uhessminIt can determine that according to hybrid energy-storing power supply (1) electrochemistry.

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