A voltage equalization control method for an input series system
A voltage equalization control and series system technology, applied in the electrical field, can solve the problems of high power consumption, unsuitable for wide-range input occasions, etc., and achieve the effects of reduced power consumption, balanced input voltage, and reduced standby power consumption
Active Publication Date: 2021-02-09
ECU ELECTRONICS INDAL
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The technical problem to be solved by the present invention is how to solve the problem that the existing voltage equalization control method consumes a lot of power and is not suitable for wide-range input occasions
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
[0026] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.
[0027] Such as figure 1 As shown, the present invention provides a method for voltage equalization control of an input series system, the method comprising:
[0028] Step S1: Each component of the auxiliary voltage equalizing circuit samples its own input voltage signal as a modulation signal, and the modulated signal is input to a digital pulse width regulator. Preferably, the components of the auxiliary voltage equalizing circuit sample its own input voltage through the digital pulse width regulator Signal;
[0029] Step S2: Each component generates the same carrier signal through a digital pulse width regulato...
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 a voltage-balancing control system of an input series system. A component of each auxiliary voltage-balancing circuit samples an own input voltage signal as a modulation signalthrough a digital pulse width regulator, various components produce same carrier signal; the digital pulse width regulator compares the modulation signal of each auxiliary voltage-balancing circuit with the carrier signal to produce a PWM pulse width modulation signal, the PWM pulse width modulation signal of the auxiliary voltage-balancing circuit with high input voltage is large, and the driving pulse width of a controllable switch controlled by the auxiliary voltage-balancing circuit is large, and the input voltage drops. Through the voltage-balancing control method disclosed by the invention, operations of sampling the bus voltage and connecting a large-power voltage-balancing resistor are avoided, the power consumption is small, and the method is suitable for wide range input.
Description
technical field [0001] The invention relates to the field of electricity, and more specifically relates to a voltage equalization control method for an input series system. Background technique [0002] In order to reduce the power transmission loss, there are more and more high-voltage power supply applications, but limited by the withstand voltage level of the existing power electronic power devices, the power converter adopts the input series method to share the bus voltage. When the power converter adopts the input series mode, it is necessary to ensure the input voltage equalization, and serious uneven voltage will cause system damage. [0003] When the system is working normally, the bus voltage can be sampled to calculate the input reference voltage of each component, and the voltage equalizing loop is closed-loop controlled. However, when the system is in the standby (power-on but not working) state or protection state, the system has no output power that can be all...
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 Patents(China)
IPC IPC(8): H02M1/00
Inventor 陈龙王雪飞
Owner ECU ELECTRONICS INDAL