CN103515976A - Elevator active energy feedback device - Google Patents

Elevator active energy feedback device Download PDF

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Publication number
CN103515976A
CN103515976A CN201210227583.2A CN201210227583A CN103515976A CN 103515976 A CN103515976 A CN 103515976A CN 201210227583 A CN201210227583 A CN 201210227583A CN 103515976 A CN103515976 A CN 103515976A
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CN
China
Prior art keywords
elevator
ammeter
inductance
active energy
electrically
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Pending
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CN201210227583.2A
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Chinese (zh)
Inventor
邱文焕
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邱文焕
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Priority to CN201210227583.2A priority Critical patent/CN103515976A/en
Publication of CN103515976A publication Critical patent/CN103515976A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an elevator active energy feedback device, and relates to the technical field of elevator energy-saving technology. The elevator active energy feedback device mainly comprises a filtering capacitor C, a power module, an inductor L, a system input end, a system output end and an external device. The filtering capacitor C is a large-capacity capacitor, a novel power device is adopted in the power module, the power module comprises an IGBT module and an IPM, the inductor L is a filtering inductor and is electrically connected with a high-frequency magnetic core choke flow electric controller in series, the system input end is electrically connected with the frequency converter direct current bus output end, and the system output end is electrically connected with a three-phase power grid. The external device comprises a three-phase kilowatt-hour meter, a frequency converter and a motor M. When the motor M works under the generating state, the P end and the N end of a frequency converter direct current bus produce pump boosting voltage, the power module starts to work, the energy accumulated on the frequency converter direct current bus is inverted into an alternating current synchronous with a power grid phase position, the alternating current is fed back to the three-phase power grid, and the purposes of obtaining a non-resistance heating element and saving energy are achieved.

Description

The active energy feedback device of elevator
Technical field
The present invention relates to a kind of energy-saving device of elevator, especially a kind of to have power savings good, and the active energy feedback device of the elevator of non-resistance heater element, relates to elevator energy-saving technical field.
Background technology
At present, known domestic elevator, in running, motor is in generating situation, can produce unnecessary electric energy, these electric energy are stored in capacitor by frequency converter output circuit, if not in time these electric energy are discharged, easily cause elevator faults and cannot normally use, for solving this defect, the overwhelming majority all adopts an energy consumption resistor in parallel in loop, converts electrical energy into heat energy, be released in surrounding space, cause elevator room temperature to raise, not only waste electric energy, also contaminated environment.
Summary of the invention
Task of the present invention is to provide a kind of elevator room temperature that contributes to ensure, electric energy is recycled, energy-conserving and environment-protective, the active energy feedback device of elevator simple in structure.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is to provide a kind of electric energy of realizing and recycles, reduce the active energy feedback device of elevator of electromagnetic pollution, comprise filter capacitor C, power model, inductance L, system input, system output, external device, described filter capacitor C is large value capacitor, described power model adopts New Type Power Devices, comprise IGBT module, intelligent object IPM, described inductance L is filter inductance, be electrically connected in series with high frequency magnetic core chokes electric controller, described system input is electrically connected to frequency changer direct current bus output, described system output is electrically connected to three phase network, described external device comprises three-phase kilowatt-hour meter, frequency converter, motor M.
The further setting of the present invention is that described filter capacitor C and inductance L form high-order harmonic filtering device, improves electromagnetic compatibility (EMC) performance.
The further setting of the present invention is in described power model, to establish intelligent object IPM, and intelligent object IPM is provided with IGBT module drive circuit and protective circuit, and IGBT module adopts from switching off device device.
The further setting of the present invention is that described inductance L is by inductance L 1, inductance L 2, inductance L 3form, high frequency magnetic core chokes electric controller is by CT 1, CT 2, CT 3form L 1, L 2, L 3respectively with CT 1, CT 2, CT 3and three phase network is electrically connected in series.
The further setting of the present invention is that described system input arranges isolating diode D 1, diode D 2and P end and N end, be connected respectively frequency changer direct current bus P end, N end.
The further setting of the present invention is three-phase input end R, S, the T electrical connection of described system output R, the corresponding frequency converter of S, T.
The further setting of the present invention is that described external device arranges three-phase kilowatt-hour meter and comprises ammeter A, ammeter B, ammeter C, ammeter A is energy consumption of elevator table, and ammeter B is elevator actual consumption electric energy ammeter, and ammeter C is feedback electric energy ammeter, frequency converter is elevator special converter, and motor M is that elevator Yi draws motor.
Beneficial effect of the present invention is: when motor M is operated in motoring condition, IGBT module is in off state, when motor M is operated in generating state, energy accumulation is held at frequency changer direct current bus P, N, produce pump up voltage, power model is started working, and will be accumulated in the inversion of frequency changer direct current bus energy to be and the phase locked alternating current of electrical network, feed back to three phase network, thereby realize non-resistance heater element and energy-conservation object.
Accompanying drawing explanation
Fig. 1 is circuit principle structure figure of the present invention
Fig. 2 is external device mounting structure schematic diagram of the present invention
Accompanying drawing identifier declaration:
(1), inductance L; (2), high frequency magnetic core chokes electric controller; (3), IGBT module; (4), diode D 1; (5), system input; (6), intelligent object IPM; (7), diode D 2; (8), filter capacitor C; (9), system output; (10), ammeter B; (11), frequency converter; (12), motor M; (13), system input switch; (14), system output switch; (15), ammeter C; (16), three phase network; (17), ammeter A.
Embodiment
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, Fig. 2, the active energy feedback device of elevator of the present invention, comprise filter capacitor C, power model, inductance L, system input, system output, external device, described filter capacitor C (8) is large value capacitor, described power model adopts New Type Power Devices, comprise IGBT module (3), intelligent object IPM (6), described inductance L (1) is filter inductance, be electrically connected in series with high frequency magnetic core chokes electric controller (2), described system input (5) is electrically connected to frequency converter (11) DC bus output, described system output (9) is electrically connected to three phase network (16), described external device comprises three-phase kilowatt-hour meter, frequency converter (11), motor M (12), when motor M (12) is operated in motoring condition, IGBT module (3) is in off state, when motor M (12) is operated in generating state, energy accumulation is at frequency converter (11) DC bus P, N end, produce pump up voltage, power model is started working, to be accumulated in the inversion of frequency converter (11) DC bus energy is and the phase locked alternating current of electrical network, feed back to three phase network (16).
The further setting of the present invention is that described filter capacitor C (8) forms high-order harmonic filtering device with inductance L (1), the higher harmonic current that stops intelligent object IPM (6) to produce enters three phase network (16), improves electromagnetic compatibility (EMC) performance.
The further setting of the present invention is in described power model, to establish intelligent object IPM (6); intelligent object IPM (6) is provided with IGBT module (3) drive circuit and protective circuit; by direct current energy inversion, it is AC energy; IGBT module (3) adopts from switching off device device; IGBT module (3) is provided with anti-paralleled diode, and its effect is to provide continuous current circuit for inductive load.
The further setting of the present invention is that described inductance L (1) is by inductance L 1, inductance L 2, inductance L 3form, the effect of inductance is to increase short-circuit impedance, limiting short-circuit current, and high frequency magnetic core chokes electric controller (2) is by CT 1, CT 2, CT 3form, its effect is the difference of absorption system input (5) voltage and three-phase electricity netting twine voltage, to reduce the impact on three-phase electricity netting twine voltage, L 1, L 2, L 3respectively with CT 1, CT 2, CT 3and three phase network (16) is electrically connected in series.
The further setting of the present invention is that described system input (5) arranges isolating diode D 1(4), diode D 2(7) and P end and N end,, through system input switch (13), be connected respectively frequency converter (11) DC bus P end, N holds, diode D 1(4), diode D 2(7) can prevent that the anti-power transmission of power model (3) from can, to frequency converter (11), guarantee system safety operation.
The further setting of the present invention be described system output (9) R, S, T through system output switch (14), three-phase input end R, the S of corresponding frequency converter (11), T are electrically connected to, and guarantee feedback electric energy and three phase network (16) Phase synchronization.
The further setting of the present invention is the three-phase kilowatt-hour meter that described external device arranges, comprise ammeter A (17), ammeter B (10), ammeter C (15), ammeter A (17) is energy consumption of elevator table, ammeter B (10) is elevator actual consumption electric energy ammeter, ammeter C (15) is feedback electric energy ammeter, frequency converter (11) is elevator special converter, and motor M (12) is drawn motor for elevator Yi.
The foregoing is only embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (7)

1. the active energy feedback device of elevator, comprise filter capacitor C, power model, inductance L, system input, system output, external device, it is characterized in that: described filter capacitor C is large value capacitor, described power model adopts New Type Power Devices, comprise IGBT module, intelligent object IPM, described inductance L is filter inductance, be electrically connected in series with high frequency magnetic core chokes electric controller, described system input is electrically connected to frequency changer direct current bus output, described system output is electrically connected to three phase network, described external device comprises three-phase kilowatt-hour meter, frequency converter, motor M.
2. the active energy feedback device of elevator according to claim 1, is characterized in that: described filter capacitor C and inductance L form high-order harmonic filtering device, improves electromagnetic compatibility (EMC) performance.
3. the active energy feedback device of elevator according to claim 1, is characterized in that: in described power model, establish intelligent object IPM, intelligent object IPM is provided with IGBT module drive circuit and protective circuit, and IGBT module adopts from switching off device device.
4. the active energy feedback device of elevator according to claim 1, is characterized in that: described inductance L is by inductance L 1, inductance L 2, inductance L 3form, high frequency magnetic core chokes electric controller is by CT 1, CT 2, CT 3form L 1, L 2, L 3respectively with CT 1, CT 2, CT 3and three phase network is electrically connected in series.
5. the active energy feedback device of elevator according to claim 1, is characterized in that: described system input arranges isolating diode D 1, diode D 2and P end and N end, be connected respectively frequency changer direct current bus P end, N end.
6. the active energy feedback device of elevator according to claim 1, is characterized in that: described system output R, three-phase input end R, the S of the corresponding frequency converter of S, T, T are electrically connected to.
7. the active energy feedback device of elevator according to claim 1, it is characterized in that: described external device arranges three-phase kilowatt-hour meter and comprises ammeter A, ammeter B, ammeter C, ammeter A is energy consumption of elevator table, ammeter B is elevator actual consumption electric energy ammeter, ammeter C is feedback electric energy ammeter, frequency converter is elevator special converter, and motor M is that elevator Yi draws motor.
CN201210227583.2A 2012-06-27 2012-06-27 Elevator active energy feedback device Pending CN103515976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210227583.2A CN103515976A (en) 2012-06-27 2012-06-27 Elevator active energy feedback device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210227583.2A CN103515976A (en) 2012-06-27 2012-06-27 Elevator active energy feedback device

Publications (1)

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CN103515976A true CN103515976A (en) 2014-01-15

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Application Number Title Priority Date Filing Date
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265043A (en) * 1986-05-14 1987-11-17 Toshiba Corp Electric power changing device for electric railroad
CN101119088A (en) * 2006-08-02 2008-02-06 上海三荣电梯有限公司 Whole controlled energy feedback system
CN102198900A (en) * 2010-03-23 2011-09-28 上海三菱电梯有限公司 Backup source operation control system of energy feedback elevator
CN202817787U (en) * 2012-06-27 2013-03-20 邱文焕 Elevator active energy feedback device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265043A (en) * 1986-05-14 1987-11-17 Toshiba Corp Electric power changing device for electric railroad
CN101119088A (en) * 2006-08-02 2008-02-06 上海三荣电梯有限公司 Whole controlled energy feedback system
CN102198900A (en) * 2010-03-23 2011-09-28 上海三菱电梯有限公司 Backup source operation control system of energy feedback elevator
CN202817787U (en) * 2012-06-27 2013-03-20 邱文焕 Elevator active energy feedback device

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Application publication date: 20140115

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