Design Method of Energy-gaining Power Supply for Current Transformer Based on Self-adaptive Power Output Control

Peng ZHANG; Wei WANG; Bingyin XU; Mingna JIA; Dong LIANG; Shengpeng ZHANG

doi:10.7500/AEPS20190624006

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Design Method of Energy-gaining Power Supply for Current Transformer Based on Self-adaptive Power Output Control

Application Research | 更新时间：2025-06-16

- Design Method of Energy-gaining Power Supply for Current Transformer Based on Self-adaptive Power Output Control
- Automation of Electric Power Systems Vol. 44, Issue 3, Pages: 194-200(2020)
- 作者机构：
  
  1. 山东理工大学电气与电子工程学院，山东省淄博市 255049
  2. 山东科汇电力自动化股份有限公司，山东省淄博市 255087
- 作者简介：
- 基金信息：
  
  Shandong Provincial Key R&D Program of China (Public Welfare);Key Project of Smart Grid Technology and Equipment of National Key R&D Program of China
- DOI：10.7500/AEPS20190624006
  CLC：
- Received：24 June 2019，
  
  Revised：2019-09-18，
  
  Published Online：04 December 2019，
  
  Published：25 March 2020
- 稿件说明：
移动端阅览
张鹏,王玮,徐丙垠等.基于自适应功率输出控制的电流互感器取能电源设计方法[J].电力系统自动化,2020,44(03):194-200.

ZHANG Peng,WANG Wei,XU Bingyin,et al.Design Method of Energy-gaining Power Supply for Current Transformer Based on Self-adaptive Power Output Control[J].Automation of Electric Power Systems,2020,44(03):194-200.
张鹏,王玮,徐丙垠等.基于自适应功率输出控制的电流互感器取能电源设计方法[J].电力系统自动化,2020,44(03):194-200. DOI： 10.7500/AEPS20190624006.

ZHANG Peng,WANG Wei,XU Bingyin,et al.Design Method of Energy-gaining Power Supply for Current Transformer Based on Self-adaptive Power Output Control[J].Automation of Electric Power Systems,2020,44(03):194-200. DOI： 10.7500/AEPS20190624006.

摘要

电流互感器取能电源在母线大电流时存在发热问题，影响电源的使用寿命。为此，文中提出了一种基于自适应功率输出控制的电流互感器取能电源设计方法。在分析电流互感器取电原理的基础上建立了电流互感器取能线圈的负载等效模型，推导了线圈的输出功率与母线电流的关系。通过控制双向晶闸管的通断达到控制取能线圈功率输出的目的，保证了电源在大电流时不发热。给出了该自适应功率输出控制电路的实现形式，通过建立其等效模型，推导了导通角与母线电流的关系。试验表明，依据所提设计方法制作的电源样机可在宽电流范围内工作在低热耗状态，验证了所提方法的可行性。

Abstract

The energy-gaining power supply of current transformer has the heating problem when the bus current is high

which affects the service life of power supply. For this reason

this paper proposes a design method of the energy-gaining power supply for the current transformer based on self-adaptive power output control. Based on the analysis of the power acquiring principle of current transformer

the load equivalent model of energy-gaining coil of the current transformer is established

and the relationship between the output power of the coil and the bus current is derived. By controlling the on-off state of the bidirectional thyristor

the purpose of controlling the power output of energy-gaining coil is achieved

and it is ensured that the power supply does not heat up at a large current. An implementation form of self-adaptive power output control circuit is given. By establishing its equivalent model

the relationship between the conduction angle and the bus current is derived. Finally

the experiment shows that the power prototype made according to the proposed design method can work in a low heat consumption state in a wide current range

which verifies the feasibility of the proposed method.

关键词

Keywords

references

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