Airborne intelligent multipath voltage dividing power supply system
A power supply system and voltage technology, applied in the field of power supply, can solve problems such as system performance degradation, unstable signal changes in a large range, discontinuous nonlinear systems, etc., and achieve the goal of improving steady-state accuracy, improving flexibility, and speeding up response speed Effect
Inactive Publication Date: 2017-03-15
广州科恩科技有限公司
View PDF9 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The circuit may be linear in each switch state, but switching the switch state according to a certain rule makes the whole system a discontinuous nonlinear system
[0007] The analysis and design of traditional power electronic converters use the small signal linearization method to obtain a linear model that ignores the switch state. Although this model can easily use the traditional frequency domain design method, the problem is that when the converter operating point occurs When the signal changes in a large range, the system performance will deteriorate, and at the same time, unpredictable instability may occur when the signal changes in a large range
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
[0021] figure 1 Shown is an airborne intelligent multi-channel voltage divider power supply system 10, the system 10 comprising:
[0022] AC / DC module 11, used for converting the alternating current of the onboard generator into direct current;
[0023] The storage battery module 12 is used for storing electric energy when the power supply system 10 is under load, and outputting DC electric energy when the power supply system 10 is overloaded;
[0024] The DC / DC multi-channel voltage division conversion module 13 is used to perform voltage conversion on the AC / DC module 11 and / or the battery module 13, and is used to supply power to multiple airborne loads 30;
[0025] A control module 14, configured to control the operation of the power supply system 10;
[0026] It is characterized in that the AC / DC module 11 is a two-stage matrix converter with fault tolerance function, and the DC / DC multi-channel voltage division conversion module is a plurality of second-order power ele...
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 discloses an airborne intelligent multipath voltage dividing power supply system. With application of the system, a bridge arm formed by two bilateral switches is led out of the neutral point of a three-phase input AC power supply on the basis of the existing two-stage matrix converter topological structure, and the flexibility of AC / DC converter fault tolerant control can be greatly enhanced by introduction of the bridge arm. The system aims at the DC / DC converter current reference value without measuring input and load and adjusts the current reference value according to the output error so as to enhance the steady accuracy and realize automatic adjustment and switching control, DC / DC converter control is enabled to be globally stable and the change of input voltage and load is enabled to be robust and thus the response speed of multipath output voltage can be accelerated.
Description
[0001] Technical field [0002] The invention relates to the field of power supplies, in particular to an airborne intelligent multi-channel voltage dividing power supply system. Background technique [0003] Airborne electrical equipment requires high power supply quality, and there are certain technical standards for voltage adjustment accuracy, frequency adjustment accuracy, AC voltage waveform sine, voltage surges and peaks. [0004] Usually there are 1 or 2 generators on an engine, so there are many generators on a multi-engine aircraft. The generators in the DC power system all work in parallel. Some alternators work in parallel and some do not. The AC power system that does not work in parallel is relatively simple; the parallel system is more complicated, but the power supply capacity is large, and the fluctuation of the load has little influence on the power supply voltage and frequency, so the power quality is high and it is not easy to interrupt the power supply. ...
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): H02M7/219H02J7/14H02J7/34
CPCH02J7/14H02J7/34H02M7/219H02M7/2195Y02T10/92
Inventor 黄诗平
Owner 广州科恩科技有限公司