Method and apparatus for DC integrated current sensor

An integrated current sensor for use in a DC electric power system, said current sensor comprising:

• a DC inductor including a resistive component and an inductive component, wherein a DC current passes through said DC inductor;
• an integrator circuit, said integrator circuit receiving a voltage associated with said DC inductor;
• a feedback system operationally connected to said DC inductor and to said integrator circuit, said feedback system subtracting a voltage associated with said resistive component and obtaining a voltage associated with said inductive component;
• a signal conditioning unit operationally connected to said DC inductor, said signal conditioning unit digitizing a second voltage proportional to a first voltage associated with said DC inductor, and outputting a third voltage;
• and
• a data processing unit in inputting said third voltage, wherein said data processing unit
• performs integration for said third voltage, and
• outputs at least one signal for parameter variation compensation, control, protection, or Prognostics Health Monitoring.