A cognitive power source comprises a power source control component, a power source power component, and a power source perception component. The power source power component is connected to the power source control component and the power source perception component. The power source perception component is connected to the power source control component and a power source load. The power source control component receives information sent by the power source perception module, and controls the power source power component to come into a dormant state or an activated state; and comprises a power source power factor correction module (F), a start power source module (E), a processor module (G), and a power distribution module (K). The power source power component comprises a power source power module (A, B, C, D), provides all power energy required by the load, and can come into a dormant state or be woken up to come into a working state under the control of the power source control component. The power source perception component comprises a power calculation module (H) and an acquisition module, and perceives a variation of a power of the power source load in real time, and sends corresponding information to the power source control component. The power source reduces consumption of the power source in a case where loads of part of power components and a transformer are lower, thereby extending the service life of the power source.
COGNITIVE POWER SOURCE