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An Active Disturbance Rejection Control Method for Bidirectional DC-DC Converters Based on Immune Algorithm

A technology of DC-DC and active disturbance rejection control, which is applied in the direction of control/regulation system, output power conversion device, DC power input conversion to DC power output, etc., and can solve problems such as DC bus voltage instability

Active Publication Date: 2020-06-26
XIAN UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a bidirectional DC-DC converter ADRC control method based on an immune algorithm, which can effectively solve the problem of DC bus voltage instability caused by photovoltaic output fluctuations and load uncertainties, and improve system stability

Method used

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  • An Active Disturbance Rejection Control Method for Bidirectional DC-DC Converters Based on Immune Algorithm
  • An Active Disturbance Rejection Control Method for Bidirectional DC-DC Converters Based on Immune Algorithm
  • An Active Disturbance Rejection Control Method for Bidirectional DC-DC Converters Based on Immune Algorithm

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Embodiment Construction

[0075] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0076] The present invention is a bidirectional DC-DC converter active disturbance rejection control method based on immune algorithm, which adopts such as figure 1 The bidirectional DC-DC converter shown adopts the voltage and current double closed-loop control, the current inner loop adopts the active disturbance rejection controller based on the immune algorithm, and the voltage outer loop adopts the PI controller;

[0077] like figure 2 The specific control steps are as follows:

[0078] Step 1. The error between the given value of the DC bus voltage and the feedback value is processed by the PI controller, and the given value of the current inner loop is output;

[0079] Step 2. The given value of the current inner loop passes through the transition process arranged by the tracking differentiator in the active disturbance rejection cont...

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Abstract

The invention discloses a bidirectional DC-DC converter ADRC control method based on an immune algorithm. The bidirectional DC-DC converter adopts voltage and current double closed-loop control, and the current inner loop adopts an ADRC controller based on an immune algorithm. The outer loop adopts a PI controller; an immune algorithm-based bidirectional DC-DC converter ADRC control method of the present invention effectively solves the problem of DC bus voltage instability caused by photovoltaic output fluctuations and load uncertainties , improve system stability.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and relates to a bidirectional DC-DC converter active disturbance rejection control method based on an immune algorithm. Background technique [0002] As one of the most promising power generation technologies today, photovoltaic power generation technology has the advantages of abundant resources, safety and reliability, clean and pollution-free, but it also has disadvantages such as large fluctuations, low power, and great influence by external conditions such as weather. A certain capacity energy storage device is configured in the photovoltaic power generation system. The energy storage device has the function of "shaving peaks and filling valleys", which can well solve the problems of randomness and volatility of the output of photovoltaic power generation systems, and achieve the goal of stable and efficient output of photovoltaic power generation systems. The bidirectional DC-DC...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158H02J3/24H02J3/28H02J3/38
CPCH02J3/383H02J3/24H02J3/28H02M3/1582H02M3/1566Y02E10/56Y02E70/30
Inventor 杨惠骆姗孙向东张琦晁凯悦
Owner XIAN UNIV OF TECH
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