CN104810824A - Electrified switching device for an energy-saving cabinet - Google Patents
Electrified switching device for an energy-saving cabinet Download PDFInfo
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- CN104810824A CN104810824A CN201410045584.4A CN201410045584A CN104810824A CN 104810824 A CN104810824 A CN 104810824A CN 201410045584 A CN201410045584 A CN 201410045584A CN 104810824 A CN104810824 A CN 104810824A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An electrified switching device for an energy-saving cabinet relates to an electrical energy-saving cabinet and comprises a power-saving machine core, a three-phase input voltage and current detection sensor, a power-saving switch, a phase adjusting module, a three-phase output voltage and current detection sensor, a bypass switch, an equipotential change-over switch module, an input/output current/voltage phase detection module and a microcontroller. By employing the design of combining the power-saving machine core with phase adjusting control and the microcontroller, the electrified switching device can effectively realize the electrified switching operation of the energy-saving cabinet, a switching control effect of on-line safe and stable connection and disconnection of the energy-saving cabinet is achieved. Meanwhile, the electrified switching device can help a user inspect the power saving condition of the energy-saving cabinet to the maximum extent, so that problems that labor and time are wasted, production is affected and service life of equipment is shortened because the energy-saving cabinet is connected and disconnected in a power-off state are solved.
Description
Technical field
The present invention relates to a kind of electric energy-saving cabinet, particularly a kind of energy-saving cabinet band electrical switching apparatus.
Background technology
China reform and opening-up since, national economy is increased fast, has become the main flow of the current industrial development of China with " scientific and technical innovation, autonomous innovation ", China's industry progressively to intensive style, energy-saving and emission-reduction, the future development of low-carbon (LC).Along with the fast development of China's economy, the energy quietly becomes the key factor of restriction China economic development.Electric energy is as the energy form be most widely used, and its demand is just increasing fast with unprecedented speed.The focus that power department and each enterprise study in energy-saving field has been become to the most efficiency utilization of electric energy, energy-saving power distribution cabinet is that user realizes energy-conservation and first order equipment that is distribution, the quality of its performance to the safety utilization of electric power of user, production safety, energy-saving and cost-reducingly play vital effect.Existing power distribution cabinet or energy-saving cabinet are all the control methods adopting power-off to switch, it needs to open or disconnect power distribution cabinet or energy-saving cabinet, the steps include: 1. all power consumption equipments in its load to be stopped, 2. carry out the unlatching of power distribution cabinet or energy-saving cabinet or disconnect control, 3. all power consumption equipments in its load being started.Obviously this method for handover control also exist time-consuming, impact is produced, shorten the problem such as service life of equipment.In order to solve this series of problems, the scientific and technical personnel of R&D institution and electric power system are in constantly research, exploration, the internal structure device of modern science and technology to energy-saving cabinet is utilized to be optimized design, although it is progressive to achieve some technically, in practice, still there is the technical barrier not yet overcome.
Summary of the invention
The object of the invention is to overcome above deficiency, a kind of energy-saving cabinet band electrical switching apparatus is provided, this device adopts the economize on electricity movement of band adjustment phase control and microcontroller is designed in conjunction forms, it can realize the charged switch operating of energy-saving cabinet effectively, reaches energy-saving cabinet safety on line, stably access and withdraws from switching controls effect.This device can facilitate user midway to watch the economize on electricity situation of energy-saving cabinet to greatest extent simultaneously, and avoids energy-saving cabinet because of power-off access or time-consuming, the impact withdrawing from and cause and produce, shorten the problems such as service life of equipment.
The technical solution adopted for the present invention to solve the technical problems is: comprise economize on electricity movement, three-phase input voltage current detection sensor, battery-conserving switch, adjustment phase module, three-phase output voltage current detection sensor, by-pass switch, equipotential diverter switch module, I/O current/voltage phase detecting module, microcontroller, economize on electricity movement is serially connected in main circuit power supply, it comprises series reactor, the fixed voltage regulator of self coupling in parallel, series reactor and the fixed voltage regulator of self coupling in parallel are all fixed on same three-limb core, above-mentioned three-limb core is provided with main coil (I-A from top to bottom successively, I-B, I-C), regulating winding (II-A, II-B, II-C), Voltage Cortrol coil (I-a, I-b, I-c), adjustment phase coil (R, S, T), by Z-shaped method for winding by coil winding on three-limb core, three-phase input voltage current detection sensor is located in the three-phase input circuit of economize on electricity movement, battery-conserving switch is located at the output port of three-phase input voltage current detection sensor, and is connected with the main coil (I-A, I-B, I-C) of economize on electricity movement, adjustment phase module is made up of the adjustable capacitive load of three-phase, and it is connected with the adjustment phase coil (R, S, T) of economize on electricity movement, three-phase output voltage current detection sensor is located in the three-phase output circuit of economize on electricity movement, I/O current/voltage phase detecting module is at three-phase input voltage current detection sensor with between three-phase output voltage current detection sensor and microcontroller, microcontroller is 32 High Speed Microcontroller based on ARM Cortex-M3 architecture, equipotential diverter switch is made up of three groups of single-phase zero level switch switch controllers, and it is attempted by between the input of battery-conserving switch and the output of three-phase output voltage current detection sensor by microcontroller, by-pass switch is attempted by the two ends of equipotential diverter switch, constitutes a kind of energy-saving cabinet band electrical switching apparatus.
The technology used in the present invention principle is: the present invention adopts ARM type 32 High Speed Microcontroller, I/O current/voltage phase detecting module, adjustment phase module, equipotential diverter switch, by-pass switch, battery-conserving switch to carry out control circuit with economize on electricity movement and be connected; with realize Detection Information immediate analysis calculate and handoff procedure accurate, control fast; ensure energy-saving cabinet in charged input with the handoff procedure withdrawn from load without the need to shutting down, supply voltage fluctuates without impact, has the advantages such as electric current is excessively steady, electric network pollution is little.Economize on electricity movement is serially connected in main circuit power supply, and microcontroller regulates amplitude and the phase place of three-phase constrained input voltage by adjustment phase module, making them reach identical, providing primary condition for realizing equipotential switching controls.Three-phase input voltage current detection sensor and three-phase output voltage current detection sensor are serially connected in the three-phase input and output circuit of economize on electricity movement respectively, detect the economize on electricity electric current of constrained input of movement and the analog current corresponding to voltage swing and voltage magnitude respectively, provide required analog signals for microcontroller carries out charged safe, steady replacements control.I/O current/voltage phase detecting module carries out high precision test (phase difference precision can reach ± 0.001 degree) to input/output voltage/current and phase difference, the accuracy of detection of voltage magnitude can reach ± 0.1V, and voltage fluctuation during to ensure that energy-saving cabinet switches is little, little on network load impact.Adjustment phase module is the control bridge between microcontroller and the adjustment phase coil economized on electricity in movement, microcontroller realizes carrying out step-less adjustment to the phase place of output voltage by adjustment phase module, make the phase place of output three-phase voltage consistent with the phase place of input voltage, ready for carrying out energy-saving cabinet switching controls when voltage over zero.Battery-conserving switch and by-pass switch are three facies tract overcurrent protective switchs, the control switch of energy-saving cabinet when normally working for a long time and quit work, when energy-saving cabinet normally works for a long time, controlled will economize on electricity between movement access power supply and load by battery-conserving switch, carry out energy-saving run; When energy-saving cabinet quits work for a long time; controlled load directly to access power supply by by-pass switch; do not carry out energy-saving run, battery-conserving switch and by-pass switch had both ensured that operation that is energy-conservation and not energy conservation state controlled, also for system cloud gray model during this two kinds of operating states provides overcurrent safeguard protection.Equipotential diverter switch is the excessive control switch of the charged switching of economize on electricity movement, it is the key realizing charged switching controls, after microcontroller is by output voltage and input voltage regulation to same phase, send control signal, equipotential diverter switch carries out when voltage over zero closing or disconnecting, to realize economizing on electricity, movement charged input switches with the no-voltage difference withdrawn from, the charged switching of guarantee energy-saving cabinet safe, steadily operate.
Microcontroller is analytical calculation and the control core of whole device, its charged access control process of carrying out energy-saving cabinet is as follows: when energy-saving cabinet needs charged access, by-pass switch is in closure state, be load supplying by by-pass switch, now, first microcontroller regulates the output voltage amplitude of economize on electricity movement equal with input voltage amplitude, battery-conserving switch closes, equipotential diverter switch closes, envoy's motor core two terminal potential is equal, and be load supplying by equipotential diverter switch, meanwhile, economize on electricity movement is in treats operating state.Next, postpone two seconds, control equipotential diverter switch to disconnect, economize on electricity movement enters operating state, and be load supplying by economize on electricity movement, because the voltage magnitude of the movement that economizes on electricity is identical with load former supply power voltage amplitude, in addition the movement that economizes on electricity is inhibited to current distortion, therefore in handoff procedure, electric current is excessively comparatively steady, finally, then postpone two seconds, the control economize on electricity voltage magnitude of movement and the degree of balance of three-phase electricity reach electricity-saving state, so far, the charged access control of energy-saving cabinet is completed; It carries out energy-saving cabinet charged to withdraw from control procedure as follows: when energy-saving cabinet needs charged withdrawing from, first microcontroller regulates the output voltage amplitude of economize on electricity movement identical with input voltage amplitude, and the current/voltage phase place of input and output is adjusted, make them synchronous.Then, equal and closed for controlling equipotential diverter switch during zero crossing at economize on electricity movement two terminal potential, envoy's motor core two terminal potential is equal and be in state to be withdrawn from, and be load supplying by equipotential diverter switch, now, if load is pure resistor load, then load voltage zero crossing corresponding current zero crossing, electric current can smooth transition; If load is inductive load, electric current is non-vanishing, and inductive load makes electric current not undergo mutation, and therefore current transition is also more stable.Next, postpone two seconds, controlling by-pass switch and close, is load supplying by equipotential diverter switch and by-pass switch jointly.Finally, then postpone two seconds, control battery-conserving switch and disconnect, energy-saving cabinet is withdrawn from completely.
The invention has the beneficial effects as follows: adopt the economize on electricity movement of band adjustment phase control and microcontroller is designed in conjunction forms, it can realize the charged switch operating of energy-saving cabinet effectively, reaches energy-saving cabinet safety on line, stably access and withdraws from switching controls effect.This device can facilitate user midway to watch the economize on electricity situation of energy-saving cabinet to greatest extent simultaneously, and avoids energy-saving cabinet because of power-off access or time-consuming, the impact withdrawing from and cause and produce, shorten the problems such as service life of equipment.
Accompanying drawing explanation
Here further describes the present invention in conjunction with the accompanying drawings and embodiments:
Fig. 1 is a kind of system wiring principle schematic of energy-saving cabinet band electrical switching apparatus
Fig. 2 is a kind of system composition general structure block diagram of energy-saving cabinet band electrical switching apparatus
In the drawings: 1. economize on electricity movement, 2. three-phase input voltage current detection sensor, 3. battery-conserving switch, 4. adjustment phase module, 5. three-phase output voltage current detection sensor, 6. by-pass switch, 7. equipotential diverter switch, 8. I/O current/voltage phase detecting module, 9. microcontroller.
Embodiment
In the drawings, economize on electricity movement 1 is serially connected in main circuit power supply, it comprises series reactor, the fixed voltage regulator of self coupling in parallel, series reactor and the fixed voltage regulator of self coupling in parallel are all fixed on same three-limb core, above-mentioned three-limb core be provided with successively from top to bottom main coil (I-A, I-B, I-C), regulating winding (II-A, II-B, II-C), Voltage Cortrol coil (I-a, I-b, I-c), adjustment phase coil (R, S, T), by Z-shaped method for winding by coil winding on three-limb core; Three-phase input voltage current detection sensor 2 is located in the three-phase input circuit of economize on electricity movement 1; Battery-conserving switch 3 is located at the output port of three-phase input voltage current detection sensor 2, and is connected with the main coil (I-A, I-B, I-C) of economize on electricity movement 1; Adjustment phase module 4 is made up of the adjustable capacitive load of three-phase, and it is connected with the adjustment phase coil (R, S, T) of economize on electricity movement 1; Three-phase output voltage current detection sensor 5 is located in the three-phase output circuit of economize on electricity movement 1; I/O current/voltage phase detecting module 8 is at three-phase input voltage current detection sensor 2 with between three-phase output voltage current detection sensor 5 and microcontroller 9; Microcontroller 9 is 32 High Speed Microcontroller based on ARM Cortex-M3 architecture; Equipotential diverter switch 7 is made up of three groups of single-phase zero level switch switch controllers, and it is attempted by between the input of battery-conserving switch 3 and the output of three-phase output voltage current detection sensor 5 by microcontroller 9; By-pass switch 6 is attempted by the two ends of equipotential diverter switch 7, constitutes a kind of energy-saving cabinet band electrical switching apparatus.
The present invention adopts ARM type 32 High Speed Microcontroller 9, I/O current/voltage phase detecting module 8, adjustment phase module 4, equipotential diverter switch 7, by-pass switch 6, battery-conserving switch 3 to carry out control circuit with economize on electricity movement 1 and be connected; with realize Detection Information immediate analysis calculate and handoff procedure accurate, control fast; ensure energy-saving cabinet in charged input with the handoff procedure withdrawn from load without the need to shutting down, supply voltage fluctuates without impact, has the advantages such as electric current is excessively steady, electric network pollution is little.Economize on electricity movement 1 is serially connected in main circuit power supply, and microcontroller 9 regulates amplitude and the phase place of three-phase constrained input voltage by adjustment phase module 4, making them reach identical, providing primary condition for realizing equipotential switching controls.Three-phase input voltage current detection sensor 2 and three-phase output voltage current detection sensor 5 are serially connected in the three-phase input and output circuit of economize on electricity movement 1 respectively, detect the economize on electricity electric current of constrained input of movement 1 and the analog current corresponding to voltage swing and voltage magnitude respectively, provide required analog signals for microcontroller 9 carries out charged safe, steady replacements control.I/O current/voltage phase detecting module 8 pairs of input/output voltage/current and phase differences carry out high precision test (phase difference precision can reach ± 0.001 degree), the accuracy of detection of voltage magnitude can reach ± 0.1V, and voltage fluctuation during to ensure that energy-saving cabinet switches is little, little on network load impact.Adjustment phase module 4 is the control bridges between microcontroller 9 and the adjustment phase coil economized on electricity in movement 1, microcontroller 9 realizes carrying out step-less adjustment to the phase place of output voltage by adjustment phase module 4, make the phase place of output three-phase voltage consistent with the phase place of input voltage, ready for carrying out energy-saving cabinet switching controls when voltage over zero.Battery-conserving switch 3 and by-pass switch 6 are three facies tract overcurrent protective switchs, the control switch of energy-saving cabinet when normally working for a long time and quit work, when energy-saving cabinet normally works for a long time, controlled economize on electricity movement 1 to access between power supply and load by battery-conserving switch 3, carry out energy-saving run; When energy-saving cabinet quits work for a long time; controlled load directly to access power supply by by-pass switch 6; do not carry out energy-saving run; battery-conserving switch 3 and by-pass switch 6 had both ensured that operation that is energy-conservation and not energy conservation state controlled, also for system cloud gray model during this two kinds of operating states provides overcurrent safeguard protection.Equipotential diverter switch 7 is excessive control switchs of the charged switching of economize on electricity movement 1, it is the key realizing charged switching controls, after microcontroller 9 is by output voltage and input voltage regulation to same phase, send control signal, equipotential diverter switch 7 carries out when voltage over zero closing or disconnecting, to realize economizing on electricity, movement 1 charged input switches with the no-voltage difference withdrawn from, the charged switching of guarantee energy-saving cabinet safe, steadily operate.
Microcontroller 9 is analytical calculation and the control core of whole device, its charged access control process of carrying out energy-saving cabinet is as follows: when energy-saving cabinet needs charged access, by-pass switch 6 is in closure state, be load supplying by by-pass switch 6, now, first microcontroller 9 regulates the output voltage amplitude of economize on electricity movement 1 equal with input voltage amplitude, battery-conserving switch 3 closes, equipotential diverter switch 7 closes, envoy's motor core 1 liang of terminal potential is equal, and be load supplying by equipotential diverter switch 7, meanwhile, economize on electricity movement 1 is in treats operating state.Next, postpone two seconds, control equipotential diverter switch 7 to disconnect, economize on electricity movement 1 enters operating state, and be load supplying by economize on electricity movement 1, because the voltage magnitude of the movement 1 that economizes on electricity is identical with load former supply power voltage amplitude, in addition the movement 1 pair of current distortion that economizes on electricity is inhibited, therefore in handoff procedure, electric current is excessively comparatively steady, finally, then postpone two seconds, the control economize on electricity voltage magnitude of movement 1 and the degree of balance of three-phase electricity reach electricity-saving state, so far, the charged access control of energy-saving cabinet is completed; It carries out energy-saving cabinet charged to withdraw from control procedure as follows: when energy-saving cabinet needs charged withdrawing from, first microcontroller 9 regulates the output voltage amplitude of economize on electricity movement 1 identical with input voltage amplitude, and the current/voltage phase place of input and output is adjusted, make them synchronous.Then, equal and closed for controlling equipotential diverter switch 7 during zero crossing at economize on electricity movement 1 liang of terminal potential, envoy's motor core 1 liang of terminal potential is equal and be in state to be withdrawn from, and be load supplying by equipotential diverter switch 7, now, if load is pure resistor load, then load voltage zero crossing corresponding current zero crossing, electric current can smooth transition; If load is inductive load, electric current is non-vanishing, and inductive load makes electric current not undergo mutation, and therefore current transition is also more stable.Next, postpone two seconds, controlling by-pass switch 6 and close, is load supplying by equipotential diverter switch 7 and by-pass switch 6 jointly.Finally, then postpone two seconds, control battery-conserving switch 3 and disconnect, energy-saving cabinet is withdrawn from completely.
Claims (1)
1. an energy-saving cabinet band electrical switching apparatus, relate to a kind of electric energy-saving cabinet, comprise economize on electricity movement, three-phase input voltage current detection sensor, battery-conserving switch, adjustment phase module, three-phase output voltage current detection sensor, by-pass switch, equipotential diverter switch module, I/O current/voltage phase detecting module, microcontroller, it is characterized in that: economize on electricity movement is serially connected in main circuit power supply, it comprises series reactor, the fixed voltage regulator of self coupling in parallel, series reactor and the fixed voltage regulator of self coupling in parallel are all fixed on same three-limb core, above-mentioned three-limb core is provided with main coil (I-A from top to bottom successively, I-B, I-C), regulating winding (II-A, II-B, II-C), Voltage Cortrol coil (I-a, I-b, I-c), adjustment phase coil (R, S, T), by Z-shaped method for winding by coil winding on three-limb core, three-phase input voltage current detection sensor is located in the three-phase input circuit of economize on electricity movement, battery-conserving switch is located at the output port of three-phase input voltage current detection sensor, and is connected with the main coil (I-A, I-B, I-C) of economize on electricity movement, adjustment phase module is made up of the adjustable capacitive load of three-phase, and it is connected with the adjustment phase coil (R, S, T) of economize on electricity movement, three-phase output voltage current detection sensor is located in the three-phase output circuit of economize on electricity movement, I/O current/voltage phase detecting module is at three-phase input voltage current detection sensor with between three-phase output voltage current detection sensor and microcontroller, microcontroller is 32 High Speed Microcontroller based on ARM Cortex-M3 architecture, equipotential diverter switch is made up of three groups of single-phase zero level switch switch controllers, and it is attempted by between the input of battery-conserving switch and the output of three-phase output voltage current detection sensor by microcontroller, by-pass switch is attempted by the two ends of equipotential diverter switch, constitutes a kind of energy-saving cabinet band electrical switching apparatus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045584.4A CN104810824A (en) | 2014-01-26 | 2014-01-26 | Electrified switching device for an energy-saving cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045584.4A CN104810824A (en) | 2014-01-26 | 2014-01-26 | Electrified switching device for an energy-saving cabinet |
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| CN104810824A true CN104810824A (en) | 2015-07-29 |
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| CN201410045584.4A Pending CN104810824A (en) | 2014-01-26 | 2014-01-26 | Electrified switching device for an energy-saving cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914864A (en) * | 2016-04-19 | 2016-08-31 | 江苏天翔节能科技有限公司 | Energy-saving cabinet |
| CN111864559A (en) * | 2020-06-30 | 2020-10-30 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch, nuclear phase current and voltage monitoring device and using method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111864559A (en) * | 2020-06-30 | 2020-10-30 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch, nuclear phase current and voltage monitoring device and using method |
| CN111864559B (en) * | 2020-06-30 | 2023-11-07 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch and nuclear phase current and voltage monitoring device and application method |
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