Power grid active power control method with energy storage power station and controllable load participating in adjustment

The invention discloses a power grid active power control method and device with an energy storage power station and a controllable load participating in adjustment, and a storage medium. The method comprises the following steps: calculating active power sensitivity of active power of an external tie line and a power grid active power node to a safe and stable power transmission channel; determining a power grid safe operation constraint; calculating an active adjustable space; constructing a first-stage optimization objective function, considering active adjustable space and power grid safe operation constraints, and calculating active instruction values of the new energy station and the conventional power plant after the first-stage optimization; updating the active adjustable space; a second-stage optimization objective function is constructed, and active instruction values of the new energy power station, the energy storage power station and the controllable load after second-stage optimization are calcul