The invention provides a single-stage chain type energy storage converter control method, device and equipment and a storage medium. The method comprises the following steps: determining a voltage given signal of an alternating current output port according to an active power given signal and a reactive power given signal of the chain type energy storage converter; calculating double frequency ripple given signals of various submodules according to detected line voltage of a connected power grid, alternating current of a chain type energy storage converter and a phase angle; determining the voltage given signal of a bridge arm port of each submodule according to the detected direct current capacitor voltage signals, inductor current signals, direct current capacitor voltage given signals and double frequency ripple given signals of the various submodules; and determining the driving signal of each switch device according to the voltage given signal of the bridge arm port. By the method, on the premise of not adding an additional circuit element, low frequency ripple wave ingredients in current of the battery of a chain type energy storage converter are suppressed, the service lifeof the battery is prolonged, and the system efficiency and running reliability are improved.