SOC chip for power grid monitoring and control equipment

Abstract

The invention discloses an SOC chip for power grid monitoring and control equipment. The SOC chip comprises a self-checking signal source generation module, a signal source selection module, a three-phase voltage transformer module, a three-phase current transformer module, a sampling control module, a periodic measurement module, a Beidou communication module, an electric parameter calculation module, a switch capacitor control module, a composite switch module, a capacitor bank, a memory module and a self-checking module. By the method disclosed by the invention, the problems that electric energy quality monitoring automatic degree is low, the harmonic analysis accuracy is low, reactive power compensation control precision is low and the compensation scheme is not flexible are solved; safe operation of a power supply system can be ensured; the electric energy loss is reduced; and the electric energy is saved.

Description

technical field [0001] The invention relates to the technical field of power grid monitoring and control, in particular to a SOC chip for power grid monitoring and control equipment. Background technique [0002] According to the statistics of authoritative organizations, among the line losses of transmission lines, high-voltage distribution network and low-voltage users, the line loss of low-voltage users is the largest. Therefore, loss reduction and energy saving should mainly focus on low-voltage 380V users. For a long time, my country's low-voltage distribution network has weak frame, small wire diameter, aging facilities, large load current, low natural power factor, complex structure, difficult control of voltage quality, and remote transmission of reactive power by the upper-level power grid, which cannot be tracked , reducing the economic benefits of the power grid. A large number of non-linear and impact loads are connected to the power grid, generating harmonics, v...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low degree of automation in power quality monitoring, low accuracy of harmonic analysis, low precision of reactive power compensation control and inflexible compensation schemes, and proposes a SOC chip for power grid monitoring and control equipment, including Self-inspection signal source generation module, signal source selection module, three-phase voltage mutual induction module, three-phase current mutual induction module, sampling control module, period measurement module, Beidou communication module, power parameter calculation module, switching capacitor control module, composite switch module , a capacitor bank, a storage module and a self-inspection module, the self-inspection signal source generation module is connected to the three-phase current mutual induction module and the three-phase voltage mutual induction module respectively through the signal source selection module, the three-phase current mutual induction module, the three-phase The voltage mutual induction module is respectively connected with the sampling control module and the period measurement module, the period measurement module is connected with the sampling control module, the sampling control module is connected with the Beidou communication module and the storage module through the power parameter calculation module, and the power The parameter calculation module is connected to the composite switch through the switching capacitor control module, and the composite switch is connected to the capacitor bank

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