CN105720586A - Power-saving device capable of improving tail end power factor of capacitance compensation cabinet - Google Patents
Power-saving device capable of improving tail end power factor of capacitance compensation cabinet Download PDFInfo
- Publication number
- CN105720586A CN105720586A CN201610136186.2A CN201610136186A CN105720586A CN 105720586 A CN105720586 A CN 105720586A CN 201610136186 A CN201610136186 A CN 201610136186A CN 105720586 A CN105720586 A CN 105720586A
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- China
- Prior art keywords
- power
- battery saving
- bypass
- saving arrangement
- current
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- 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
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a power-saving device capable of improving a tail end power factor of a capacitance compensation cabinet. The power-saving device comprises a case and a power-saving device body, wherein the power-saving device body is arranged in the case and comprises an integrated control unit, a safety protection device, a bypass control unit, a sampling unit, a surge management device and a bypass switching control key, wherein the bypass switching control key is arranged outside the case and is used for manually switching a bypass/power-saving state. By the power-saving device, the reactive power required by a tail end of a power utilization device can be timely and accurately compensated, the response time is short, compensation can be provided according to demand on reactive power change required by the tail end, and an excessive compensation or under compensation phenomenon can be prevented.
Description
Technical field
The present invention relates to a kind of battery saving arrangement, be especially a kind of battery saving arrangement that can improve capacitor compensation cabinet end power factor.
Background technology
Capacitance compensating cabinet is made up of cabinet shell, bus, chopper, isolation switch, thermorelay, catalyst, spark gap, capacitor, reactor, wire, terminal block, power-factor automatic compensation controller, card instrument etc..Capacitor compensation cabinet is typically mounted on the low pressure of power distribution room transformator and surveys operation, and generally it is run automatically by power control.Because of load-carrying kind different and determine the capacity of electric capacity and the quantity of capacitance group.But capacitor box can only be surveyed at transformer low voltage and run at present, what compensate is also only first section idle, effectively the idle amount required for end can not being compensated, and compensate and there is hysteresis quality, response time is excessively slow, timely idle needed for end can not be compensated, capacitor box compensates and has step evolution simultaneously, owing to capacitor box compensation is the state of a notch cuttype, it is impossible to realize precisely compensating for, often occur to throw then to cross to mend, do not throw the phenomenon then owing to mend.Particularly utilize capacitor box to compensate the resonance phenomena that can produce serial or parallel connection in the occasion that harmonic ratio is more serious, amplify the harm of harmonic wave so that the electric capacity in capacitor box is blasted.Use capacitor box compensates, head end capacitance compensation has certain hysteresis, because its load of the equipment of end constantly changes, required idle be also different, hysteresis quality due to electric capacity, required idle amount cannot be precisely compensated for, thus causing end power factor phenomenon on the low side, the line loss in circuit can be made to increase, the minimizing of exerting oneself of equipment, increasing the capacity of electrical equipment.
Summary of the invention
In view of the defect of above-mentioned prior art, it is an object of the invention to: a kind of battery saving arrangement that can improve capacitor compensation cabinet end power factor is provided, it is possible to accurately timely idle needed for end is compensated.
The technical solution of the present invention is: a kind of battery saving arrangement that can improve capacitor compensation cabinet end power factor, and including cabinet and be arranged on the battery saving arrangement body in cabinet, described battery saving arrangement body includes:
Integrating control unit, by current signal in collecting unit real time automatic detection electrical network, is then fed in control chip and carries out accurate calculating so that the electric current that compensates of output changes along with the change of the electric current of detection；
Safety guard, by using low-voltage control circuit to improve manual safety；
Bypass control unit, controls the switching to bypass/economize on electricity by the adhesive of control contactor group；
Stable-pressure device, when input voltage or load change, control circuit is sampled, compares, amplifies, and then drives servomotor to rotate, makes the position change of pressure regulator carbon brush, keeps stablizing of output voltage by automatically adjusting coil ratio；
Sampling unit, the automatically current signal in detection electrical network；
Surge controlling device, is used for suppressing transient current voltage；
Bypass-switching contr key, is arranged on outside cabinet and for manual switching bypass/electricity-saving state.
Further, when surge controlling device is for suppressing battery saving arrangement body start and stop or produced the impact of big Current on Grid by thunderbolt, thus suppressing transient current voltage.
Further, battery saving arrangement body also has automatic detection function, the current data in electrical network detected by current sensor monitor in real time.
Apply a kind of battery saving arrangement that can improve capacitor compensation cabinet end power factor provided by the present invention, it provides the benefit that: what can accurately compensate needed for electrical equipment end in time is idle, response time is fast, and compensation can be provided along with the demand of change idle needed for end, will not occur to mend or owe to mend phenomenon, this device gamut from perception to capacitive carries out continuous print Reactive-power control, reach the quickly compensation system demand to reactive power, there is fast response time, compensate more accurate, absorb idle continuously, suppress harmonic wave, own loss is low, find in time to compensate in time, do not have capacitance compensation to relatively lag behind the advantage of problem.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is an internal structure schematic diagram of the present invention；
Fig. 3 is another internal structure schematic diagram of the present invention；
Fig. 4 is the use principle block diagram of the present invention.
Shown in figure: 1-cabinet, 2-battery saving arrangement body, 21-integrating control unit, 22-safety guard, 23-Bypass control unit, 24-stable-pressure device, 25-sampling unit, 26-surge controlling device, 27-bypass-switching contr key.
Detailed description of the invention
For comparing intuitively, being fully understood by technical scheme, now just carry out nonrestrictive feature description in conjunction with accompanying drawing of the present invention as follows:
As shown in Figure 1-Figure 3, a kind of battery saving arrangement that can improve capacitor compensation cabinet end power factor, including cabinet 1 and be arranged on the battery saving arrangement body 2 in cabinet 1, battery saving arrangement body 2 includes:
Integrating control unit 21, by current signal in collecting unit 25 real time automatic detection electrical network, is then fed in control chip and carries out accurate calculating so that the electric current that compensates of output changes along with the change of the electric current of detection；
Safety guard 22, by using low-voltage control circuit to improve manual safety；
Bypass control unit 23, when device is in bypass condition can detecting compensating reactive power meet needed for end idle time automatically switch to bypass condition, the phenomenon mended without merits and demerits will not be made to occur, the switching to bypass/economize on electricity is controlled by the adhesive of control contactor group, when battery saving arrangement body 2 itself fail, bypass condition can be automatically switched to, recover the running status that electrical equipment is original, without influence on operation and the production of equipment；
Stable-pressure device 24, when input voltage or load change, control circuit is sampled, compares, amplifies, and then drives servomotor to rotate, makes the position change of pressure regulator carbon brush, keeps stablizing of output voltage by automatically adjusting coil ratio；
Sampling unit 25, the automatically current signal in detection electrical network；
Surge controlling device 26, is used for suppressing transient current voltage；
Bypass-switching contr key 27, is arranged on outside cabinet 1 and for manual switching bypass/electricity-saving state.
Stable-pressure device 24 makes the position change of pressure regulator carbon brush, by automatically adjusting coil ratio, thus keeping stablizing of output voltage.
When surge controlling device 26 is for suppressing battery saving arrangement body 2 start and stop or produced the impact of big Current on Grid by thunderbolt, thus suppressing transient current voltage, protect the safety of electrical equipment.
Battery saving arrangement body 2 also has automatic feedback function, by the compensation electric current that the harmonic current detected and governor circuit are exported carry out closed loop relatively after, output feedback signal is to governor circuit, the output making control main circuit is followed the change of the harmonic current detected and is changed, it is achieved the dynamic compensation of harmonic wave.
Battery saving arrangement body 2 also has automatic detection function, by current sensor (not shown), it is possible to monitor in real time detects the harmonic current in electrical network.
As shown in Figure 4, surge impact electric current can be overcome at short time automatic switching during the work of this device, carry out dynamic scan in combination with program, complete quick compensation, quick filter, it is achieved improve power factor, prevent resonance.Circuit is scanned detection by this device, measures apparent energy timely analytical data in real time, improves electric system on-load ability, reduce electric energy loss in circuit, improve power factor, make installed capacity be not fully exerted.
A kind of battery saving arrangement that can improve capacitor compensation cabinet end power factor provided by the present invention, it avoids the hysteresis quality of compensation, end-equipment meet when constantly changing required idle be also different, this device can when compensating reactive power required for end being detected moment carry out idle compensation；Idle compensation is linear compensation by this device, for the idle accurate compensation compensated required for end, effectively avoids the compensation inaccuracy of traditional capacitor, will not throw, and crosses to mend and does not throw the state then owing to mend.
Certainly; these are only presently preferred embodiments of the present invention; non-the scope of the claims therefore namely limiting to the present invention, all utilizations description of the present invention and the simple and easy modification for it of graphic content institute and equivalent structure change, all should in like manner be contained within the scope of patent protection of the present invention.
Claims (3)
1. the battery saving arrangement that can improve capacitor compensation cabinet end power factor, it is characterised in that: including cabinet and the battery saving arrangement body being arranged in cabinet, described battery saving arrangement body includes:
Integrating control unit, by current signal in collecting unit real time automatic detection electrical network, is then fed in control chip and carries out accurate calculating so that the electric current that compensates of output changes along with the change of the electric current of detection；
Safety guard, by using low-voltage control circuit to improve manual safety；
Bypass control unit, controls the switching to bypass/economize on electricity by the adhesive of control contactor group；
Stable-pressure device, when input voltage or load change, control circuit is sampled, compares, amplifies, and then drives servomotor to rotate, makes the position change of pressure regulator carbon brush, keeps stablizing of output voltage by automatically adjusting coil ratio；
Sampling unit, the automatically current signal in detection electrical network；
Surge controlling device, is used for suppressing transient current voltage；
Bypass-switching contr key, is arranged on outside cabinet and for manual switching bypass/electricity-saving state.
2. a kind of battery saving arrangement that can improve capacitor compensation cabinet end power factor according to claim 1, it is characterized in that: when surge controlling device is for suppressing battery saving arrangement body start and stop or produced the impact of big Current on Grid by thunderbolt, thus suppressing transient current voltage.
3. a kind of battery saving arrangement that can improve capacitor compensation cabinet end power factor according to claim 1, it is characterised in that: battery saving arrangement body also has automatic detection function, the current data in electrical network detected by current sensor monitor in real time.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136186.2A CN105720586A (en) | 2016-03-07 | 2016-03-07 | Power-saving device capable of improving tail end power factor of capacitance compensation cabinet |
| CN201710125132.0A CN106816882B (en) | 2016-03-07 | 2017-03-03 | Power saving device for improving power factor at tail end of power grid in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136186.2A CN105720586A (en) | 2016-03-07 | 2016-03-07 | Power-saving device capable of improving tail end power factor of capacitance compensation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105720586A true CN105720586A (en) | 2016-06-29 |
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ID=56157755
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610136186.2A Pending CN105720586A (en) | 2016-03-07 | 2016-03-07 | Power-saving device capable of improving tail end power factor of capacitance compensation cabinet |
| CN201710125132.0A Active CN106816882B (en) | 2016-03-07 | 2017-03-03 | Power saving device for improving power factor at tail end of power grid in real time |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710125132.0A Active CN106816882B (en) | 2016-03-07 | 2017-03-03 | Power saving device for improving power factor at tail end of power grid in real time |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105720586A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107472087A (en) * | 2017-08-11 | 2017-12-15 | 南京铁道职业技术学院 | The reinforced protection device for urban transportation rail current potential |
| CN113488873A (en) * | 2021-07-22 | 2021-10-08 | 广东思科通用电力科技有限公司 | Automatic electric energy parameter adjusting device for bus duct output end |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924884Y (en) * | 2006-06-26 | 2007-07-18 | 赵树军 | Powerless compensation control box |
| CN201601496U (en) * | 2009-11-04 | 2010-10-06 | 江苏维尔电气有限公司 | Low-voltage reactive power compensation device |
| CN201877829U (en) * | 2010-11-24 | 2011-06-22 | 曹立军 | System safety power saver |
| CN103579925A (en) * | 2012-08-08 | 2014-02-12 | 深圳国信能源有限公司 | High-power inversion electric control cabinet based on photovoltaic power generation grid-connected/off-grid integrated bus-based power supply |
-
2016
- 2016-03-07 CN CN201610136186.2A patent/CN105720586A/en active Pending
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2017
- 2017-03-03 CN CN201710125132.0A patent/CN106816882B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106816882B (en) | 2020-04-21 |
| CN106816882A (en) | 2017-06-09 |
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| CB02 | Change of applicant information |
Address after: 315040 Zhejiang city of Ningbo province high tech Zone to 999 Lane Road Development Park Building No. 2 604 Applicant after: Zhejiang new energy Polytron Technologies Inc Address before: 315000 Zhejiang city of Ningbo province high tech Zone to 999 Lane Road Development Park Building No. 2 604 Applicant before: ZHEJIANG YONGYUAN XINNENG TECHNOLOGY CO., LTD. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |
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| WD01 | Invention patent application deemed withdrawn after publication |