Real-time voltage monitor device of 10KV power distribution network

Abstract

The invention discloses a real-time voltage monitor device of a 10KV power distribution network, which comprises a voltage detection unit, an electricity taking unit and a communication unit which are connected with a central processing unit MCU (Micro Control Unit) respectively, wherein the voltage detection unit comprises a multi-selection analog switch connected with three-phase voltage signals; the multi-selection analog switch is connected with an AD / CD (Analog-Digital / Continuous-Discrete ) conversion unit; the electricity taking unit comprises an energy taking unit connected with a high-voltage power supply line; the energy taking unit is connected with a voltage-stabilizing output unit by an overcharging / overdischarging protection circuit; the voltage-stabilizing output unit is connected with a power supply module and a storage battery power supply module respectively; the power supply module and the storage battery power supply module are connected with a voltage boosting module respectively; the central processing unit MCU is connected with the high-voltage power supply line through the electricity taking unit to supply power; and the three-phase voltage signals collected by the voltage detection unit are transmitted to a management system through the communication unit for real-time monitoring and alarm. The device effectively achieves monitoring of 10KV voltage equipment, can monitor line voltage situations in real time for a long term, and is low in investment and convenient to mount and maintain.

Description

technical field [0001] The invention relates to a distribution network voltage real-time monitor, in particular to a 10kV distribution network voltage real-time monitor device. Background technique [0002] With the development of the rural economy, the quality of life of farmers has been continuously improved, and the nature of farmers' electricity consumption has also undergone fundamental changes. The long-term mechanism for power grid development has not yet been established, and there is no systematic monitoring of the low voltage phenomenon of the entire distribution network, especially the monitoring of 10kV "low voltage", so it is impossible to provide a systematic and comprehensive rectification solution. As the State Grid Corporation of China proposed to "vigorously develop rural power, optimize and upgrade rural power grids" to ensure that "new countryside, new power, and new services" can be carried out smoothly, low-voltage phenomena have long affected rural pro...

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Problems solved by technology

[0006] At present, all parts of the country are vigorously carrying out low-voltage control actions. Most of the voltage monitoring equipment stays at the 0.4kV level. There are no relevant reports on the research on 10kV voltage monitoring equipment. The successful development of this project has a very good application prospect.

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