CN201038822Y

CN201038822Y - Quick non-interrupted power system

Info

Publication number: CN201038822Y
Application number: CNU2006201686245U
Authority: CN
Inventors: 孙毅彪
Original assignee: 孙毅彪
Current assignee: Inner Mongolia Hao Yuan Technology Co., Ltd.
Priority date: 2006-12-25
Filing date: 2006-12-25
Publication date: 2008-03-19
Anticipated expiration: 2016-12-25

Abstract

The utility model relates to the electric-force electron field, in particular to a rapid uninterrupted power supply system, which consists of an emergency power supply and a rapid duplicate supply switching device. The rapid duplicate supply switching device relates to a contact duplicate supply inter-control device and an AC non-contact switch, a contact switch C1 and a contact switch C2 of the contact duplicate supply inter-control device are respectively connected with a non-contact switch K1 and a non-contact switch K2 in parallel, and then connected with a loop in parallel and connected with an output power supply in series, the contact switch and the non-contact switch are both communicated with a control plate, the control plate is also connected with a power supply observation instrument, the emergency power supply is connected with an input power supply in series and connected with the control plate. The utility model with simple structure is applied by combining the emergency power supply and the duplicate supply switching device, which eliminates the side effect of the UPS on-line operation system, improves the safety, the practicability, the economical performance and the environmental protection of the uninterrupted power supply system during the long-time operation process and the adaptability of the uninterrupted power supply system to an electrified wire netting, a station and a load on normal working condition, and leads the system to be more scientific and reasonable.

Description

Quick uninterruptible power system

Technical field:

The utility model relates to power electronic technology, does not particularly allow interruptedly supplying power and the equipment or the device of the electricity consumption electric that do not allow to have a power failure.

Background technology:

Various field both domestic and external is in order to guarantee the ups power that uninterruptedly and is in a large number using various brands of visual plant power supply, according to incompletely statistics, the UPS consumption of the annual millions of KVA that just have an appointment of China only, all places that power supply capacity is had relatively high expectations have mostly disposed on line type UPS, and UPS is almost the god who is regarded as power supply with electrical domain.Many UPS on the market original physics sinusoidal waveform of sending here not as city's net of the waveform quality of its output not only in fact; and load capacity poor (band carries rate less than 70%); impact resistance poor (not allowing to be with impact load); bad adaptability (can not be with inductive load) to load; bad adaptability (having protectiveness to quit work when chance voltage is on the low side or higher) to electrical network; bad adaptability to the workplace (requires temperature adjustment; damping; dedusting; antistatic; noiseless and ventilate unimpeded etc.); and the electricity supplying and using system that pours in of UPS has caused severe contamination (high order harmonic component and non-sine amount that online inversion produces are fed back in electrical network) to electrical network; and must join into; the loss of outlet isolating transformer and online rectification and inversion has reduced the service efficiency (lowering efficiency more than 15%) of electric energy again; caused serious energy dissipation, the electric heating of the portion of energy that is wasted transforms has increased disaster hidden-trouble to system again.And so on, after some systems use UPS, though solved the continual problem of power supply, but many side effects of losing more than gain have been brought, particularly spread unchecked the low-grade UPS that grows in the environment or perch (be still so far pile up assemble with common small-sized power electronics loose mail and gate circuit) and flood market in a large number, make ability, quality, safety and the efficient of many electric power systems become bad in disorderly competition and quality and price.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned not enough problem, and a kind of quick uninterruptible power system is provided, and simple in structure, safe and reliable, energy-conservation, safety, environmental protection and adaptive capacity are strong.

The technical scheme that the utility model is adopted for achieving the above object is: quick uninterruptible power system, form by emergency power supply and quick duplicate supply switch, quick duplicate supply switch relates to the contact duplicate supply and throws device and AC contact-less switch mutually, the contact duplicate supply is thrown contact switch C1 and the C2 difference noncontacting switch K1 in parallel and the K2 of device mutually, connect with out-put supply in the shunt circuit, contact switch and noncontacting switch all are connected with control board, also be connected with the power monitoring instrument on the control board, emergency power supply is connected with the input power supply, and links to each other with control board.

The power monitoring instrument that connects on the described control board comprises input power monitoring instrument and out-put supply supervisory instrument, adopts voltage changer, voltage transformer or power pack.

Described AC contact-less switch K1, K2 are silicon controlled module or IGBT module or IPM module class power electronic device (comprising IGCB.GTR.GTO.P-MOSFET etc.).

Described control board adopts PLC, single-chip microcomputer, industrial computer or General Logic control circuit.

Described emergency power supply can be selected UPS, EPS or sinewave inverter for use according to the characteristic and the site environment needs of load, mainly comprises rectification link, charging and discharging link, sinusoidal wave inversion link and batteries.

The utility model has significant effect compared with similar products: simple in structure, emergency power supply and duplicate supply switch are combined application, eliminate the work online side effect of system of UPS, to the adaptability of electrical network, place, load etc., make system's science and reasonable more under raising uninterruptible power system long-time running process safe, practicality, economy, the feature of environmental protection and the normal running conditions.Illustration in the practicality about existing many 100KW-1500KW facts have proved: as long as rationally match emergency power supply or adjust the emergency power supply parameter index, the utility model system is fairly obvious in the aforementioned aspects effect, has absolute predominance and development potentiality.Can replace or improve UPS function, performance and parameter in many places, be unrestricted that work online, energy-conservation, safety, environmental protection and the strong backup type uninterruptible power system of adaptive capacity avoided of a kind of novel capacity.

Description of drawings:

Fig. 1 is a circuit diagram of the present utility model.

Embodiment:

As shown in Figure 1, the urban network electricity source connects and connects quick uninterruptible power system after a contact duplicate supply is thrown device 1 mutually, uninterruptible power system is made up of emergency power supply 3 and quick duplicate supply switch 2 fast, emergency power supply can be selected UPS for use according to the characteristic and the site environment needs of load, EPS or sinewave inverter, mainly comprise the rectification link, the charging and discharging link, sinusoidal wave inversion link and batteries, rectification circuit in the emergency power supply is divided into two-way, one the tunnel charges the battery, another road connects inverter (straight-as to hand over), emergency power supply is connected with the input power supply, and links to each other with quick duplicate supply switch control board PC.Duplicate supply switch 2 is thrown contact switch C1 and the C2 difference noncontacting switch K1 in parallel and the K2 of device mutually for the contact duplicate supply fast, AC contact-less switch K1, K2 can adopt silicon controlled module or IGBT module or IPM module class power electronic device (comprising IGCT.GTR.GTO.P-MOSFET etc.), connect with output as total output in the shunt circuit, contact switch and noncontacting switch all are connected with control board, control board adopts PLC, single-chip microcomputer, industrial computer or General Logic control circuit all can, two-way input power supply place is connected with input power monitoring instrument A1 and A2 on the control board, the out-put supply place is connected with out-put supply supervisory instrument A3, A1, A2 and A3 can adopt voltage changer, voltage transformer or power pack.

During application, suppose that C1 and K1 are set to working power switches set (connecing main power source) in quick duplicate supply switch, and C2 and K2 are set to Backup Power Switch, the power supply of throwing device from the contact duplicate supply mutually is divided into two-way, one the tunnel directly causes the C1 and the K1 switches set of quick duplicate supply switch, another pass is gone into the rectifier of emergency power supply and is given batteries charging through charger, and the inverter output bus of emergency power supply is introduced and connect Backup Power Switch group (C2 and K2) in the quick duplicate supply switch.C1 is in " leading to " attitude under the normal condition, C2 is in " breaking " attitude, K1 and K2 all are in cut-off state, inverter under normal circumstances is in unloaded output or underloading (control, signal and the electricity consumption of measuring instrument power supply) output state all the time, fast uninterruptible power system output urban network electricity source powering load.In the urban network electricity source for some reason between the rest periods; when C1 disconnects; the rapid conducting of K2; emergency power supply replaces the urban network electricity source to power to the load rapidly; the urban network electricity source is recovered normal back K2 and is ended; the K1 conducting; recover city's net power supply state; to the conversion of " leading to " attitude, K1's C1 deactivated (ending) after C1 transferred " leading to " attitude to, if the urban network electricity source disappears for some reason by " breaking " attitude simultaneously; then at C1 by the moment of on-state to off-state conversion; the rapid conducting of K2, emergency power supply is taken over the urban network electricity source rapidly and is powered to the load, and process short time delay After-market network source is if recover; then C2 transfers on-state to by off-state; the K2 state of deactivating provides emergency power supply by C2 to load, for a long time up to power system restoration operate as normal or battery under-voltage protection.In like manner, if C2 in the quick duplicate supply switch and K2 are arranged to main electric switch and C1 and K1 are arranged to Backup Power Switch, then C2 and K2 switches set and urban network electricity source join, and C1 and K1 switches set and emergency power supply output join, and principle is constant.When the output short circuit causes the breaking outage of urban network electricity source, control board in the duplicate supply switch obtains conducting and the conversion that short circuit information also stops two groups of switches in the quick duplicate supply switch in view of the above by output monitoring instrument A3 fast, guarantees that emergency power supply can not miscarry on the circuit of short trouble.

Claims

1. quick uninterruptible power system, form by emergency power supply and quick duplicate supply switch, it is characterized in that: quick duplicate supply switch relates to the contact duplicate supply and throws device and AC contact-less switch mutually, the contact duplicate supply is thrown the contact switch (C1) of device and (C2) noncontacting switch in parallel (K1) and (K2) respectively mutually, connect with output in the shunt circuit, contact switch and noncontacting switch all interrelate with control board, also be connected with the power monitoring instrument on the control board, emergency power supply is connected with the input power supply, and interrelates with control board.

2. quick uninterruptible power system according to claim 1 is characterized in that: the power monitoring instrument that connects on the control board comprises input power monitoring instrument and out-put supply supervisory instrument, adopts voltage changer, voltage transformer or power pack.

3. quick uninterruptible power system according to claim 1 and 2 is characterized in that: AC contact-less switch (K1, K2) is silicon controlled module or IGBT module or IPM module class power electronic device.

4. quick uninterruptible power system according to claim 1 and 2 is characterized in that: control board adopts PLC, single-chip microcomputer, industrial computer or General Logic control circuit.

5. quick uninterruptible power system according to claim 1 and 2, it is characterized in that: emergency power supply can be selected UPS, EPS or sinewave inverter for use according to the characteristic and the site environment needs of load, mainly comprises rectification link, charging and discharging link, sinusoidal wave inversion link and batteries.