The invention relates to an uninterrupted micro-grid power supply cooperative control method and system based on a virtual synchronous machine. The method comprises the steps of S1 obtaining a set value and an error value [delta] [delta] i, carrying out the calculation to obtain a tracking error, and carrying out the virtual control of the tracking error, and obtaining an error reference value; S2 after instruction filtering compensation and sliding mode control are carried out on the error reference value, obtaining terminal sliding mode values Si1 and Si2 used for tracking errors; S3 performing adaptive law control adjustment on the set value to obtain an error estimation value; s4 inputting the terminal sliding mode values Si1 and Si2 and the error estimation value into an automatic voltage regulator to realize voltage regulation so as to obtain a stable output voltage ui; and S5 performing voltage and current closed-loop control on the output voltage ui to obtain stable active power pi, and performing capacity estimation, power distribution and SoC droop control on the active power pi to obtain a response error again. According to the method, parameter self-adaption, instruction filtering and sliding mode control of a virtual synchronous machine are introduced, so that the problem of SoC inconsistency of a community uninterruptible power supply system based on multiple intelligent bodies is solved.

    本发明涉及一种基于虚拟同步机的不间断微网电源协同控制方法及系统,包括:S1、获取设定值和误差值Δδi,计算得到跟踪误差,并对跟踪误差进行虚拟控制得到误差参考值;S2、对误差参考值进行指令滤波补偿和滑膜控制后,得到用于跟踪误差的终端滑模值Si1、Si2;S3、对设定值进行自适应律的控制调整后得到误差估计值;S4、将终端滑模值Si1、Si2和误差估计值输入到自动电压调节器实现电压调节,从而得到稳定的输出电压ui;S5、将输出电压ui进行电压电流的闭环控制后得到稳定的有功功率pi,有功功率pi经过容量估计、功率分配、SoC下垂控制后,重新得到响应误差。本发明引入虚拟同步机的参数自适应、指令滤波、滑模控制,以解决基于多智体的社区不间断电源系统的SoC不一致问题。


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    Titel :

    Uninterrupted micro-grid power supply cooperative control method and system based on virtual synchronous machine


    Weitere Titelangaben:

    基于虚拟同步机的不间断微网电源协同控制方法及系统


    Beteiligte:
    XU DEZHI (Autor:in) / ZHANG WEIMING (Autor:in) / YANG WEILIN (Autor:in) / PAN TINGLONG (Autor:in) / LIU ZIBO (Autor:in) / ZHU LEI (Autor:in)

    Erscheinungsdatum :

    2021-11-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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