Online power transmission and distribution line electric micro field energy collection device

Abstract

The invention discloses an online power transmission and distribution line electric micro field energy collection device. The device comprises a two-electric field energy collection polarity board arranged at a high voltage wire side, wherein the two-electric field energy collection polarity board is electrically connected with an input end of a full wave rectifier bridge, an output end of the full wave rectifier bridge is electrically connected with a voltage reduction converter and a charging management circuit, the voltage reduction converter is used for directly supplying power to electricity equipment, the charging management circuit is electrically connected with an energy storage device, and the energy storage device supplies power to the electricity equipment through a dischargingmanagement circuit. The device has advantages of stable power supply and stable equipment operation.

Description

technical field [0001] The invention relates to power supply settings, in particular to a device for collecting online micro-electric field energy of power transmission and distribution lines with stable power supply and stable equipment operation. Background technique [0002] With the development of ultra-low power chip technology, the power of wireless sensor nodes has entered the range of microwatts (μW). For power data collection on transmission lines, most occasions do not have suitable stable power sources. Previous transmission lines Most of the devices on the Internet rely on high-energy batteries for power supply. The designed battery life is about 3 to 5 years, which requires regular battery replacement. There are many problems in the battery replacement process. First, because things on the line need to be replaced, especially in Lines above 220KV need to wait for a power outage before they can operate. Generally, the power outage maintenance cycle of the line is...

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Problems solved by technology

[0002] With the development of ultra-low power chip technology, the power of wireless sensor nodes has entered the range of microwatts (μW). For power data collection on transmission lines, most occasions do not have suitable stable power sources. Previous transmission lines Most of the devices on the Internet rely on high-energy batteries for power supply. The designed battery life is about 3 to 5 years, which requires regular battery replacement. There are many problems in the battery replacement process. First, because things on the line need to be replaced, especially in Lines above 220KV need to wait for a power outage before they can operate. Generally, the power outage maintenance cycle of the line is one year. If a battery failure is found within the cycle, the equipment maintenance needs to wait until the next cycle. With the continuous improvement of live work technology, online The operation can be carried out without power failure, but the risk of live work is relatively high, and the operation is quite cumbersome, requires more professional equipment, and requires the cooperation of multiple power departments to carry out live work; 2. Online power data Collection equipment, based on the protection of the line, the weight of online collection equipment is relatively light, and the weight is controlled within 1Kg. Many equipment adopts a one-time design method. Disassembling the equipment requires destroying the equipment. Replacing the battery is equivalent to replacing the equipment; With the improvement of people's living standards, the requirements for stable operation of lines have also been raised to a new level. Therefore, the online monitoring technology of transmission lines has been developed rapidly and widely used, such as temperature monitoring of transmission line conductors, monitoring of insulator string contamination, conductor wind deflection and vibration Monitoring, etc., but the problem of equipment power supply restricts the development of transmission line online monitoring system

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