CONTROL SYSTEM, TRANSFORMER, SECURITY CONTROL DEVICE, AND BITSTREAM MEMORY UNIT

摘要

An analog/digital converter unit (2) that receives an analog electric quantity from an electric assembly and converts same to a digital quantity comprises a ?S modulator (22) that outputs a bitstream wherein one bit, which is obtained by sampling and ?S modulating the analogy electric quantity from the electrical assembly with a prescribed modulation frequency, changes over time. A digital computation processing unit (3) that carries out a security control computation relating to the state of the electric assembly comprises a plurality of digital filters (23) that receive the bitstream from the ?S modulator (22) and that have frequency values that vary depending on the type of security control computation, and one or more computation processing elements (24) that are connected to the respective digital filters and carry out different types of security control computation processes relating to the security control on the basis of the bitstream from the digital filters.