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A cascaded high-voltage electric field induction power supply circuit with two-level change

A high-voltage electric field, inductive power supply technology, applied in battery circuit devices, circuit devices, indicating/monitoring circuits, etc., can solve the problems of low average efficiency and average sales volume, etc. Simplified effect

Active Publication Date: 2022-07-15
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +4
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Problems solved by technology

However, the average sales volume of this method is not high. Therefore, the average efficiency of energy harvesting in the non-voltage conversion induction power supply in the patent No. ZL201510012804.8 "A Cascaded Electric Field Induction Power Supply Circuit" is not high. Propose a new technology to improve efficiency

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  • A cascaded high-voltage electric field induction power supply circuit with two-level change
  • A cascaded high-voltage electric field induction power supply circuit with two-level change
  • A cascaded high-voltage electric field induction power supply circuit with two-level change

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] The induction energy taking device is composed of a metal induction plate and the circuit of the present invention, and the metal induction plate generates an AC circuit and is input to the circuit.

[0033] The invention is a cascaded high-voltage induction electric field energy acquisition technology based on the principle of the cascaded discharge method of two-stage conversion. By setting up a two-stage voltage conversion circuit, the first stage is charged and discharged in series. The charging circuit charges the supercapacitor, which significantly increases the efficiency of electric field induction energy extraction, so that it can meet the needs of high-power online monitoring equipment. The main ideas include the following two points.

[0034] One is to improve the first-stage conversion efficiency by optimizing the design of ...

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Abstract

The invention discloses a cascaded high-voltage electric field induction power supply circuit with two-stage change, belonging to the technical field of on-line monitoring equipment for power systems. The two-stage cascaded electric field induction power supply circuit innovatively applies the two-stage discharge circuit to the single-stage electric field induction energy-receiving circuit, and uses N+1 energy-capacitors to charge in series at the same time. After each reaches the threshold, it uses its independent discharge. The loop transfers the energy to the secondary side energy storage capacitor of the transformer, realizing a "series charge and discharge" effect, and uses the subsequent DC-DC charging circuit to generate a small current to charge the supercapacitor, which not only ensures the circuit performance. The overall topology, the series charging and discharging circuit is improved, and the DC-DC charging circuit is used to control the charging current, which reduces the charging loss of the supercapacitor and improves the power efficiency. Through the optimized design of the existing electric field induction energy acquisition power supply circuit of the present invention, the electric field induction energy acquisition energy can be applied to high-power online monitoring equipment.

Description

technical field [0001] The invention belongs to the technical field of on-line monitoring equipment for power systems, and in particular relates to a cascaded high-voltage electric field induction power supply circuit with two-level changes. Background technique [0002] The existing power supply modes for online monitoring equipment of high-voltage equipment are divided into two types: autonomous energy extraction and transmission power supply. The transmission power supply method mainly transmits energy from the ground to the online measurement device through media such as optical fiber or microwave, but the main disadvantage of this energy supply method is the high cost. The main technical solutions for autonomous power supply include: (1) battery power supply: this method has stable energy supply, but the disadvantage is that it needs to be powered off regularly to replace the battery, and the power system does not allow frequent power outages; (2) current coil power sup...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J5/00H02J7/00
CPCH02J5/005H02J7/0021H02J7/025H02J7/0068H02J2207/20
Inventor 刘正阳张静肖黎曾翔君何宁辉程林周盟熊帆张杰李梦齐罗传仙
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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