CN103441568A - Uninterruptible automatic-switchover control system for photovoltaic power supply and electric supply - Google Patents
Uninterruptible automatic-switchover control system for photovoltaic power supply and electric supply Download PDFInfo
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- CN103441568A CN103441568A CN2013103943402A CN201310394340A CN103441568A CN 103441568 A CN103441568 A CN 103441568A CN 2013103943402 A CN2013103943402 A CN 2013103943402A CN 201310394340 A CN201310394340 A CN 201310394340A CN 103441568 A CN103441568 A CN 103441568A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The invention relates to an uninterruptible automatic-switchover control system for a photovoltaic power supply and an electric supply. When the control system is started, whether an electric supply system is normal or not is firstly judged, and if the electric supply system is normal, a photovoltaic power generation system is kept in a disconnection state; if the electric supply system is judged to have fluctuation and a fluctuation range exceeds a preset value, emergency accidents possibly happen, the control system disconnects the electric supply system, the photovoltaic power generation system is started, and an emergency power supply is switched on; if the electric supply system is judged to be in a power-off state, the control system disconnects an electric supply grid, an uninterruptible power system UPS and a hospital internal grid are still in a switch-on state, power is stilled supplied to the internal grid, the control system starts a switchover switch at the same time, and the photovoltaic power generation system is switched on. The uninterruptible automatic-switchover control system effectively integrates the photovoltaic power generation system, the electric supply system and an emergency power supply system, when the electric supply is suddenly powered off or emergency faults occur, the photovoltaic power generation system can be automatically switched over within a safety time to supply power, and therefore uninterruptible power supply of the important medical care devices of hospitals is achieved.
Description
Technical field
The present invention relates to the uninterrupted automatic switching control system of a kind of photo-voltaic power supply and civil power.
Background technology
clear in " design of civil buildings standard ": " when a stage load should be broken down by two-way Power supply ，Dang mono-road power supply, another road power supply should unlikelyly be damaged simultaneously.Particular importance load in one stage load, except above-mentioned two-way power supply, also must set up emergency power supply ".The user of hospital for can not interruption of power supply under any normal, accident conditions, belong to a stage load unit, must provide emergency power supply for oneself by hospital.House generator group or EPS emergency power supply need be configured for load that can not interruption of power supply, for the important load that does not allow instantaneous power failure, the UPS uninterrupted power supply need be configured.But for some township hospital, because the restriction of condition wants to reach corresponding design specification and is difficult to.
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Summary of the invention
The purpose of this invention is to provide a kind of photo-voltaic power supply and uninterrupted automatic switching control system of civil power that situation of all-level hospitals is used that be applicable to.
The uninterrupted automatic switching control system of a kind of photo-voltaic power supply and civil power, at first this control system will judge that mains system is normal while starting, if normal, photovoltaic generating system remains open state;
If the judgement mains system has fluctuation, and emergency episode may occur over predetermined value, control system disconnection mains system, starting photovoltaic generating system, connection emergency power supply in fluctuation range; If emergency rating is eliminated, artificially disconnect photovoltaic generating system;
If the judgement mains system is in power down mode, control system disconnects utility grid, UPS uninterruptible power system and hospital's Intranet are still in on-state, it is still the Intranet power supply, control system battery change over switch now, connect photovoltaic generating system, when photovoltaic generating system and Intranet connection, the UPS uninterrupted power supply transfers the electric power storage state to; When detecting mains system, control system powers when normal, can the automatic disconnection photovoltaic generating system, control change over switch and mains system connection.
The present invention is by effectively integrating photovoltaic generating system and, mains system, emergency power supply system, when civil power has a power failure suddenly or emergency occurs, can in safety time, automatically switch to the photovoltaic generating system power supply, thereby realize the uninterrupted power supply of the important medical care equipment of hospital.
The accompanying drawing explanation
Fig. 1 is control system flow chart of the present invention.
embodimentphotovoltaic generating system is to utilize solar cell directly solar energy to be converted to the electricity generation system of electric energy.Its critical piece is solar cell, storage battery, controller and inverter.Be characterized in that reliability is high, long service life, free from environmental pollution, can be incorporated into the power networks again by Independent Power Generation, be subject to the favor of every industry or trade's tissue, there is vast potential for future development.The photovoltaic generation product is mainly used in three broad aspect: the one, for without electric field, providing power supply; The 2nd, the Sun Day electronic product, as all kinds of solar chargers, the various light fixtures of solar street light and solar energy meadow etc.; The 3rd, generate electricity by way of merging two or more grid systems, this developed country spread implement, but generate electricity by way of merging two or more grid systems and also do not start to popularize in an all-round way in China, just enforcement among a small circle in.
The objective of the invention is to utilize the characteristic of photovoltaic generating system to implement among a small circle in hospital, is mainly for using when mains failure or when emergency episode occurs.
As shown in Figure 1, a kind of photo-voltaic power supply and uninterrupted automatic switching control system of civil power that is applicable to the situation of all-level hospitals use: at first this control system will judge that mains system is normal while starting, if normal, photovoltaic generating system remains open state;
If the judgement mains system has fluctuation, and emergency episode may occur over predetermined value, control system disconnection mains system, starting photovoltaic generating system, connection emergency power supply in fluctuation range.If emergency rating is eliminated, artificially disconnect photovoltaic generating system;
If the judgement mains system is in power down mode, control system disconnects utility grid, UPS uninterruptible power system and hospital's Intranet are still in on-state, it is still the Intranet power supply, control system battery change over switch now, connect photovoltaic generating system, when photovoltaic generating system and Intranet connection, the UPS uninterrupted power supply transfers the electric power storage state to.When detecting mains system, control system powers when normal, can the automatic disconnection photovoltaic generating system, control change over switch and mains system connection.
Handover control system of the present invention can be by the conversion of control system, realizes that light does the uninterrupted conversion of electricity generation system and mains system, thereby provides powerful guarantee as the operating characteristic of one-level power supply unit for hospital.
The UPS uninterrupted power supply: for require can not instantaneous interruption of power supply important load, as the UPS uninterrupted power supply need be equipped by the important section office such as operating room, ICU and CCU.UPS uninterrupted power supply capacity (time delay) should guarantee that all important loads are used incessantly.The UPS uninterrupted power supply, as the load equipment of electrical network, must possess following characteristic: a) on line type UPS power supply, and overload capacity is strong; B) input power factor is high, during the band nominal load, should be greater than 0.95; C) input side harmonic current distortion is little, should be able to voltage stabilizing, various interference in frequency stabilization, removal electrical network, in order to avoid cause feedback to pollute to civil power; D) inside must arrange bypass and emergency cut-off switch; E) can be monitored and be reported to the police key modules such as ups power main frame, battery pack; F) equipment should meet in the world general EN50091-1 standard aspect fail safe, and the Electro Magnetic Compatibility aspect should meet the requirement of EN50091-2 standard; The EPS emergency power supply: the EPS emergency power supply is on the ups power technical foundation, mainly tackles a kind of fire-fighting emergency power supply of fire accident.When electrical network, during without electricity, the EPS emergency power supply can provide the fire protection equipments power supplies such as Fire lift, fire pump, rolling screen door, ventilating fan, spray pump.When a, line voltage change within the specific limits, directly adopt civil power to be powered, only at line voltage during below or above a certain voltage, fire-fighting emergency power supply starts, and inverter, to the power supply of fire-fighting load, improves power supplying efficiency; B, EPS power requirement multichannel output ，Mei road output loading overload and short circuit must report to the police and protect; C, EPS power requirement are detected each batteries, if battery failures report to the police; D, EPS power requirement charger loop open circuit, short trouble are reported to the police; E, EPS power supply should be able to enter emergency rating in manual, automatic two kinds of modes, and have the button of pressure to proceed to emergency rating for fire-fighting emergency power supply, and after this pushbutton enable, fire-fighting emergency power supply should not be subject to the impact of over.
Claims (1)
1. a photo-voltaic power supply and the uninterrupted automatic switching control system of civil power, it is characterized in that: at first this control system will judge that mains system is normal while starting, if normal, photovoltaic generating system remains open state;
If the judgement mains system has fluctuation, and emergency episode may occur over predetermined value, control system disconnection mains system, starting photovoltaic generating system, connection emergency power supply in fluctuation range; If emergency rating is eliminated, artificially disconnect photovoltaic generating system;
If the judgement mains system is in power down mode, control system disconnects utility grid, UPS uninterruptible power system and hospital's Intranet are still in on-state, it is still the Intranet power supply, control system battery change over switch now, connect photovoltaic generating system, when photovoltaic generating system and Intranet connection, the UPS uninterrupted power supply transfers the electric power storage state to; When detecting mains system, control system powers when normal, can the automatic disconnection photovoltaic generating system, control change over switch and mains system connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103943402A CN103441568A (en) | 2013-09-03 | 2013-09-03 | Uninterruptible automatic-switchover control system for photovoltaic power supply and electric supply |
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| CN2013103943402A CN103441568A (en) | 2013-09-03 | 2013-09-03 | Uninterruptible automatic-switchover control system for photovoltaic power supply and electric supply |
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| CN103441568A true CN103441568A (en) | 2013-12-11 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467162A (en) * | 2014-10-31 | 2015-03-25 | 美登思电气（上海）有限公司 | Anti-misoperation medium voltage emergency power supply switching system |
| CN104691761A (en) * | 2014-12-04 | 2015-06-10 | 中国航空工业集团公司第六三一研究所 | Multi-mode hybrid power supply system and method for ICP (integrated core processor) |
| CN105990901A (en) * | 2015-02-25 | 2016-10-05 | 鞍钢股份有限公司 | Power supply and distribution method for important load in first-order loads of control chamber |
| WO2018232869A1 (en) * | 2017-06-23 | 2018-12-27 | 深圳市盛路物联通讯技术有限公司 | Intelligent power supply method and device |
| CN109787344A (en) * | 2018-08-02 | 2019-05-21 | 湖南汇博电子科技股份有限公司 | Fire-fighting power supply starts method, apparatus, system and storage medium |
| CN110994609A (en) * | 2019-12-18 | 2020-04-10 | 罗宾力电源科技(河北)有限公司 | AC/DC load power supply system |
| CN116780750A (en) * | 2023-08-24 | 2023-09-19 | 成都特隆美储能技术有限公司 | Auxiliary power supply method for uninterruptible power supply of energy storage system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005245190A (en) * | 2004-01-28 | 2005-09-08 | Densei Lambda Kk | Power supply system equipped with thunder detecting means |
| CN102255356A (en) * | 2011-06-29 | 2011-11-23 | 黄俊嘉 | Efficient uninterruptible power supply |
-
2013
- 2013-09-03 CN CN2013103943402A patent/CN103441568A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005245190A (en) * | 2004-01-28 | 2005-09-08 | Densei Lambda Kk | Power supply system equipped with thunder detecting means |
| CN102255356A (en) * | 2011-06-29 | 2011-11-23 | 黄俊嘉 | Efficient uninterruptible power supply |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467162A (en) * | 2014-10-31 | 2015-03-25 | 美登思电气（上海）有限公司 | Anti-misoperation medium voltage emergency power supply switching system |
| CN104691761A (en) * | 2014-12-04 | 2015-06-10 | 中国航空工业集团公司第六三一研究所 | Multi-mode hybrid power supply system and method for ICP (integrated core processor) |
| CN104691761B (en) * | 2014-12-04 | 2017-01-04 | 中国航空工业集团公司第六三一研究所 | Comprehensive core processor multi-mode mixed power supply system and method |
| CN105990901A (en) * | 2015-02-25 | 2016-10-05 | 鞍钢股份有限公司 | Power supply and distribution method for important load in first-order loads of control chamber |
| WO2018232869A1 (en) * | 2017-06-23 | 2018-12-27 | 深圳市盛路物联通讯技术有限公司 | Intelligent power supply method and device |
| CN109787344A (en) * | 2018-08-02 | 2019-05-21 | 湖南汇博电子科技股份有限公司 | Fire-fighting power supply starts method, apparatus, system and storage medium |
| CN110994609A (en) * | 2019-12-18 | 2020-04-10 | 罗宾力电源科技(河北)有限公司 | AC/DC load power supply system |
| CN116780750A (en) * | 2023-08-24 | 2023-09-19 | 成都特隆美储能技术有限公司 | Auxiliary power supply method for uninterruptible power supply of energy storage system |
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Application publication date: 20131211 |