Cyber-attack detection and electrical system stability for electric vehicle charging infrastructure

A computerized method to protect an electric vehicle charging infrastructure that receives Alternating Current (“AC”) power from a power grid and provides Direct Current (“DC”) power to electric vehicles, comprising:

• receiving, at a sensor spoof observer and controller, information from at least two AC current sensors;
• calculating, by the sensor spoof observer and controller, a grid voltage disturbance using a structure based on an AC filter dynamic model;
• monitoring, by a system stability assurance platform, current and voltage to detect resonance;
• identifying, by the system stability assurance platform, impedance associated with a detected resonance;
• applying, by the system stability assurance platform, a result of an analysis of the identified impedance to an adaptive damping control algorithm;
• and
• providing, by a user interface platform, information about a component of the charging infrastructure being cyber-attacked to a distribution system operator via a graphical user interface display.

A non-transitory, computer-readable medium storing program code, the program code executable by a computer processor to cause the processor to perform a method to protect an electric vehicle charging infrastructure that receives Alternating Current (“AC”) power from a power grid and provides Direct Current (“DC”) power to electric vehicles, the method comprising:

• receiving, at a sensor spoof observer and controller, information from at least two AC current sensors;
• calculating, by the sensor spoof observer and controller, a grid voltage disturbance using a structure based on an AC filter dynamic model;
• monitoring, by a system stability assurance platform, current and voltage to detect resonance;
• identifying, by the system stability assurance platform, impedance associated with a detected resonance;
• applying, by the system stability assurance platform, a result of an analysis of the identified impedance to an adaptive damping control algorithm;
• and
• providing, by a user interface platform, information about a component of the charging infrastructure being cyber-attacked to a distribution system operator via a graphical user interface display.