Electrical safety and conducted emissions stewardship

Technical solutions have been developed that ensure the specified level of electromagnetic interference emission from electrical and electronic equipment of control and information computing systems, as well as electrical safety aboard the high-speed EMU.

Creation of a system that ensures the specified level of electromagnetic interference emission from electrical and electronic equipment of control and information computing systems, as well as electrical safety aboard the high-speed EMU.

1. The electrical safety system is built using algorithms that analyse data from current and voltage measurement sensors, earth-fault relays, and feedback signals from devices.

2. The resulting data is used to implement protection profiles for passengers and personnel against harmful and dangerous effects of electric current.

1. Diagnostic data is collected by connecting to data transmission networks using networks built on various technologies and principles, including but not limited to: CAN;

Ethernet.

2. Development of earthing and shielding schematics for EMU equipment uses graphical development environments — specialised software toolsets. These environments include the appropriate libraries, offer a high degree of automation of developer actions, and error checking. Such solutions substantially reduce development time and allow a large part of the electrical engineering design documentation package to be stored in digital form.

3. Software for optimisation and control of the auxiliary power supply system is developed using:

• programming languages: C, C++;
• development tools: Visual Studio, Eclipse, NetBeans, and specialised integrated environments for embedded microcontroller software (IAR, Keil, CubeIDE);
• source code management tools: SVN, Git;
• requirements management tools: T-FLEX RM.