公开(公告)号：US20140233263A1

公开(公告)日：2014-08-21

申请号：US14260741

申请日：2014-04-24

Applicant: SMA Solar Technology AG

Inventor： Martin Bock ,  Tobias Mueller ,  Thomas Ortmann ,  Alexander Unru

IPC: H02M7/42

CPC classification number: H02M7/42 ,  G05F1/67 ,  Y02E10/58

Abstract: The disclosure relates to a tracking method for a voltage transformer, in particular an inverter, of a photovoltaic system. In the method, an intermediate circuit voltage is repeatedly decreased or increased in one direction to a lower or higher voltage by voltage steps of a specified magnitude. The method is characterized in that an average rate of change of the intermediate circuit voltage in a partial time period between two voltage steps is limited by a maximum average rate of change, the maximum average rate of change being defined according to the magnitude of the intermediate circuit voltage. The disclosure further relates to a tracking device designed to perform the tracking method and to an inverter equipped with the tracking device.

Abstract translation: 本公开涉及一种用于光伏系统的变压器，特别是逆变器的跟踪方法。 在该方法中，通过规定幅度的电压阶段，中间电路电压通过一个方向重复地减小或增加到较低或更高的电压。 该方法的特征在于，在两个电压阶段之间的部分时间段内的中间电路电压的平均变化率受到最大平均变化率的限制，最大平均变化率根据中间值的大小而定义 电路电压。 本公开还涉及被设计为执行跟踪方法的跟踪装置以及配备有跟踪装置的逆变器。

公开(公告)号：US09444365B2

公开(公告)日：2016-09-13

申请号：US14260741

申请日：2014-04-24

Applicant: SMA Solar Technology AG

Inventor： Martin Bock ,  Tobias Mueller ,  Thomas Ortmann ,  Alexander Unru

IPC: G05F1/67 ,  H02M7/42 ,  H02M7/44 ,  H02M7/48 ,  H02M7/53 ,  H02M7/537

CPC classification number: H02M7/42 ,  G05F1/67 ,  Y02E10/58

Abstract: The disclosure relates to a tracking method for a voltage transformer, in particular an inverter, of a photovoltaic system. In the method, an intermediate circuit voltage is repeatedly decreased or increased in one direction to a lower or higher voltage by voltage steps of a specified magnitude. The method is characterized in that an average rate of change of the intermediate circuit voltage in a partial time period between two voltage steps is limited by a maximum average rate of change, the maximum average rate of change being defined according to the magnitude of the intermediate circuit voltage. The disclosure further relates to a tracking device designed to perform the tracking method and to an inverter equipped with the tracking device.

Abstract translation: 本公开涉及一种用于光伏系统的变压器，特别是逆变器的跟踪方法。 在该方法中，通过规定幅度的电压阶段，中间电路电压通过一个方向重复地减小或增加到较低或更高的电压。 该方法的特征在于，在两个电压阶段之间的部分时间段内的中间电路电压的平均变化率受到最大平均变化率的限制，最大平均变化率根据中间值的大小而定义 电路电压。 本公开还涉及被设计为执行跟踪方法的跟踪装置以及配备有跟踪装置的逆变器。