Intelligent integrated elevator system assistant power device
A system power supply and auxiliary power supply technology, which is applied in measurement devices, output power conversion devices, measurement power and other directions, can solve the problems of large weight and volume, complicated wiring, low reliability, etc. The effect of energy consumption
Inactive Publication Date: 2010-02-03
盈威力新能源科技(上海)有限公司
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Problems solved by technology
[0002] At present, the auxiliary power system of the elevator control system is generally figure 1 As shown, including: power frequency transformer (500-1000W, weight 10KG-20KG), phase sequence protector, rectifier bridge and smoothing capacitor, contactor, power resistor, switching power supply meter 6 parts, its disadvantage: large weight and volume , complex wiring, high energy consumption, mutual coupling, low reliability
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[0009] 1. Circuit topology such as image 3 Shown: 1) is the phase sequence detection circuit 2) is the 24V and 5V switching conversion circuit 3) is the DC-DC and DC-AC conversion circuit 4) is the DC-DC conversion circuit
[0010] 2. High-frequency switching energy conversion technology mainly refers to isolated DC-DC conversion and H-bridge DC-AC conversion
[0011] 3. The phase sequence detection technology refers to the three-phase voltage isolation transformer, or optocoupler device, or non-isolated resistance detection, and obtains a square wave pulse signal synchronized with each zero point, and then makes a judgment on phase sequence / missing sequence.
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An intelligent power supply applied to elevator relates to a power electronic topology scheme to adopt high frequency switch energy transformation technology and digitalized phase sequence detection technology to integrate a plurality of (generally 6) components or devices related to elevator assistant power supply in a current elevator control system into a circuit board. Power transformation canbe obtained all by changing high frequency transformer switches, the phase sequence protection can be realized by software, DC band-type brake is subject to rated incitation (110V or 200V), reduced rate maintenance (80V / 160V), thus saving contactor and access of power resistance, simplifying circuit, reducing energy consumption and improving reliability. The 220V power required by the elevator toseparate from the grid can also be obtained by high frequency transformation, thus greatly reducing volume and idle loss, and fully electronizing and intelligentizing the plurality of (generally 6) components in the current system with no contact points, weight / volume being 20-30% of the original weight / volume and cost being around half of the original cost, saving quantities of copper, saving energy consumption (no energy consumption resistance), really realizing integration of intelligence and environment protection, decoupling all the parts, and totally not influencing other circuits by cutting out solely when short pass occurs to a gate machine circuit.
Description
technical field [0001] The invention relates to electrotechnical technology, power electronic technology, and elevator control technology. Background technique [0002] At present, the auxiliary power system of the elevator control system is generally figure 1 As shown, including: power frequency transformer (500-1000W, weight 10KG-20KG), phase sequence protector, rectifier bridge and smoothing capacitor, contactor, power resistor, switching power supply meter 6 parts, its disadvantage: large weight and volume , complex wiring, high energy consumption, mutual coupling and correlation, and low reliability. [0003] The present invention as figure 2 As shown, the above six devices are all electronic, intelligent, and contactless. The weight / volume is only 20-30% of the original, and the cost is only about half. It saves a lot of copper, saves energy (no energy consumption resistors), and truly realizes the integration of intelligence and environmental protection. Each par...
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IPC IPC(8): H02M1/10B66B1/34G01R31/00
Inventor 古俊银
Owner 盈威力新能源科技(上海)有限公司