LED lamp power supply control device with virtual synchronous machine response mechanism

A technology of power control device and LED lamp, applied in electric light source, lighting device, electroluminescent light source, etc., can solve the problem of inability to respond to power grid and intelligent requirements of users, achieve optimized continuity, improve power grid stability, realize Effects of remote control

Active Publication Date: 2019-03-29
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of science and technology, LED power supply has also been developed rapidly. At this stage, there are mainly constant-current and regulated power supplies, which only guarantee the basic power supply of LED power supply, and have not yet involved in actively participating in smart grid frequency modulation and other needs, so they cannot respond to the power grid. and user's intelligent requirements

Method used

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  • LED lamp power supply control device with virtual synchronous machine response mechanism
  • LED lamp power supply control device with virtual synchronous machine response mechanism
  • LED lamp power supply control device with virtual synchronous machine response mechanism

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] like figure 1 , the current LED lamp power supply is generally powered by the AC power supply of the grid, and the DC power supply of the DC / DC module is obtained after the Totem Pole output power factor correction (Totem Pole PFC) module, and then converted into a suitable voltage by the DC / DC module The current is used to power the LED lights.

[0029] In the present invention, in order to effectively control the voltage and current of the LED lamp power supply, it is necessary to collect V in , I in , V dc and I o . Among them, V in and V dc Can be directly collected by the voltage sensor, I in and I o The voltage on the corresponding load can be collected by the voltage sensor and then calculated by Ohm's law.

[0030] like figure 2 , The LED lamp power control device of the present invention includes a voltage sensor, a light intensity sensor,...

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Abstract

The invention discloses an LED lamp power supply control device with a virtual synchronous machine response mechanism. The device receives an ambient light intensity signal measured by a light intensity sensor, power grid and LED lamp power supply related signals measured by a voltage sensor and a wireless scheduling instruction transmitted by an upper-layer energy scheduling system; and comprehensive judgment is made based on the information, and an instruction signal for adjusting the LED lamp power supply is generated and sent to a PFC module and a DC / DC module which are used for convertingpower grid AC into an LED lamp DC power supply respectively. The working efficiency of the LED power supply can be improved, and unnecessary energy consumption is reduced. Meanwhile, the LED lamp power supply control device actively participates in power grid side response, and power grid stability is improved. Modern digital intelligent scheduling can be realized, and the accuracy and efficiencyof intelligent scheduling are improved.

Description

technical field [0001] The invention relates to a LED lamp power control technology, in particular to a LED lamp power control device with a virtual synchronous machine response mechanism. Background technique [0002] In recent years, LED lamps have been widely promoted and applied due to their advantages of low loss, long life, green and energy saving. As the "heart" of LED lamps, the driving power supply has become an important part of the promotion and development of LED lighting. With the rapid development of science and technology, LED power supply has also been developed rapidly. At this stage, there are mainly constant-current and regulated power supplies, which only guarantee the basic power supply of LED power supply, and have not yet involved in actively participating in smart grid frequency modulation and other needs, so they cannot respond to the power grid. and the intelligent requirements of users. Contents of the invention [0003] Purpose of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/40
Inventor 徐青山王栋
Owner SOUTHEAST UNIV
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