Electrical charging apparatus, electrical charging station and method for controlling an electrical charging apparatus

An electrical charging apparatus for charging an electrical energy store of a motor vehicle, comprising:

• an electrical connector configured to removably connect the charging apparatus to a stationary charging station and configured to interchange electrical energy and data with the stationary charging station, wherein the electrical connector has a plurality of phases to interchange the electrical energy with the stationary charging station in a multi-phase manner;
• a communication interface electrically connected to the electrical connector;
• an electrical converter configured to be removably coupled to the electrical energy store of the motor vehicle and to convert the electrical energy from the stationary charging station from an alternating current (AC) voltage to a direct current (DC) voltage;
• an electrical line electrically connecting the communication interface to the electrical converter, the electrical line including a first electrical line and a second electrical line;
• the first electrical line including a first end and a second end, the first end of the first electrical line connected to the communication interface and the second end of the first electrical line connected to a control unit, the first electrical line forming a bidirectional powerline communication (PLC) channel between the communication interface and the control unit for transmitting data and electrical energy;
• the second electrical line including a first end and a second end, the first end of the second electrical line connected to the control unit and the second end of the second electrical line connected to the electrical converter, the second electrical line forming a bidirectional PLC channel between the control unit and the electrical converter for transmitting data and electrical energy;
• the control unit integrated in the electrical line and configured to form an overvoltage protection device;
• and
• the communication interface configured to interchange data between the stationary charging station and the control unit via the electrical connector and the first electrical line,
• wherein, the control unit is configured to independently control the interchange of the electrical energy in each of the phases between the stationary charging station and the charging apparatus via the electrical converter on the basis of the interchange data to prevent high reactive powers, zero point shifts, and asymmetrical network loads,
• wherein, in the event of an existing asymmetrical network load, the control unit is configured to limit the withdrawal of electrical energy over individual phases or load individual phases more greatly to avoid and/or compensate for the existing asymmetrical network load.