Energy storage converter dead zone compensation method and device based on quasi-resonance controller
A technology of energy storage converter and dead zone compensation, which is applied in the direction of output power conversion device, conversion of AC power input to DC power output, AC network load balancing, etc., which can solve problems such as inability to realize dead zone compensation and achieve improvement Control performance and loading capacity, achieve dead zone compensation, and high compensation accuracy
Pending Publication Date: 2021-04-30
CHINA ELECTRIC POWER RES INST +1
View PDF0 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] 1) The dead zone compensation is performed in an open-loop mode, and due to the limitation of the modulation method and the influence of the dead zone time setting, adaptive dead zone compensation cannot be realized;
[0006] 2) The compensation process depends on the judgment of the current polarity on the one hand, and on the other hand, the compensation amount is an estimated average value, which cannot achieve high-precision dead zone compensation
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0053] In order to solve the problem that the existing method is difficult to realize the adaptive and high-precision dead zone compensation of the energy storage converter, this embodi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of power electronics, particularly provides an energy storage converter dead zone compensation method and device based on a quasi-resonance controller, and aims to solve the technical problems of self-adaption and high-precision dead zone compensation of an energy storage converter. The method comprises the following steps: acquiring a voltage modulation signal by utilizing a fundamental wave controller and a quasi-resonance controller based on a d / q-axis voltage component corresponding to a load side three-phase alternating-current voltage signal; taking the voltage modulation signal as the input of an SVPWM module to obtain a switching tube driving signal of an energy storage converter output by the SVPWM module; according to the scheme, self-adaptive and high-precision dead zone compensation of the energy storage converter is realized, so that the control performance and the loading capacity of the converter are improved.
Description
technical field [0001] The invention relates to the field of power electronics, in particular to a dead zone compensation method and device for an energy storage converter based on a quasi-resonant controller. Background technique [0002] Energy is the driving force for the operation of industrial society, and its continuous and reliable supply is a major issue in social development. With the promotion and use of new energy, various distributed power sources such as wind power and photovoltaics are connected to the power grid, and the proportion of new energy power generation in the total power generation continues to increase. In order to solve the problem of new energy consumption and optimize the energy structure, an energy storage system can be used to convert excess electric energy into other forms of energy for storage. As the interface between the battery on the DC side and the grid / load on the AC side, the energy storage converter realizes bidirectional energy flow...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02M7/5387H02M1/088
CPCH02J3/32H02M1/088H02M7/5387Y02B70/10
Inventor 李浩源李官军吴福保陶以彬余豪杰杨波殷实王德顺
Owner CHINA ELECTRIC POWER RES INST