A trigger-oscillating smart grid frequency conversion energy-saving control system
An energy-saving control system and smart grid technology, applied to the AC network to reduce harmonics/ripples, reactive power compensation, harmonic reduction devices, etc., can solve problems such as inability to effectively achieve energy saving, and achieve stability and stability The effect of strong reliability and reduced volume
Active Publication Date: 2017-03-08
内蒙古云谷电力科技股份有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the defect that the frequency conversion energy-saving street lamp controller in the current smart grid frequency conversion energy-saving system cannot effectively realize energy saving, and to provide a trigger-oscillating smart grid frequency conversion energy-saving control system
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[0023] like figure 1 As shown, the present invention mainly includes an EMI filter 1, a bridge rectifier 2, a step-up active power factor correction circuit 3, a DC / AC high-frequency converter 4, a triode parallel trigger oscillation compensation circuit 5, and a sampling protection circuit 6. Nine major parts of single chip microcomputer 7, pulse generation drive circuit 8 and emitter follower saturation trigger circuit 9.
[0024] Among them, the sampling protection circuit 6 is used to transmit the sampling results of the voltage at both ends of the energy-saving street lamp and the current passing through the energy-saving street lamp to the single-chip microcomputer 7, and the single-chip microcomputer 7 controls the pulse generation driving circuit 8 to send a lighting driving waveform or a normal working driving waveform to DC / AC High-frequency converter 4, the DC / AC high-frequency converter 4 converts the 400V direct current boosted by the step-up active power factor c...
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The invention discloses a triggered oscillation type frequency-converting and energy-saving control system for a smart grid. The trigger type frequency-converting and energy-saving control system mainly comprises an EMI (electro-magnetic interference) filter (1), a bridge rectifier (2) connected with the EMI filter (1), a boosting type active power factor correcting circuit (3) connected with the bridge rectifier (2), a DC (direct current) / AC (alternating current) high-frequency frequency converter (4) connected with the boosting type active power factor correcting circuit (3) and the like. The triggered oscillation type frequency-converting and energy-saving control system for the smart grid is simpler in integral structure and higher in stability and reliability, and the traditional compensation capacitor is replaced with the triode parallel type compensation circuit, so that the size of the control system can be reduced greatly, the power factor of the whole control system can be increased to a great extent, and accordingly, the stability of the system is guaranteed.
Description
technical field [0001] The invention relates to the field of power grid energy saving, in particular to a trigger-oscillating intelligent power grid frequency conversion energy-saving control system. Background technique [0002] At present, with the development of urbanization and the improvement of people's living standards, the power consumption of urban lighting has increased geometrically. In response to the call of the national energy conservation and emission reduction policy, the concept of smart grid has been increasingly recognized by everyone. The smart grid is the intelligence of the power grid, also known as "grid 2.0", which is a technical application based on an integrated, high-speed two-way communication network, which can realize the reliability, safety, economy, efficiency, environmental friendliness and use of the power grid. safe target. [0003] Frequency conversion energy-saving street lamp is an important unit of smart grid, and the energy saving of ...
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IPC IPC(8): H02J3/18H02J3/01
CPCY02E40/30Y02E40/40
Inventor 杜宝龙张耀刘振宏张强杜天乐裴志亮杨飞
Owner 内蒙古云谷电力科技股份有限公司