CN202759284U

CN202759284U - Station-use AC-DC integrated power supply system

Info

Publication number: CN202759284U
Application number: CN201220433182.8U
Authority: CN
Inventors: 王怀柱; 张庆武; 谢海江; 彭升强; 傅元秀; 何成林
Original assignee: HNAC Technology Co Ltd
Current assignee: HNAC Technology Co Ltd
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-02-27
Anticipated expiration: 2022-08-29

Abstract

Disclosed is a station-use AC-DC integrated power supply system, comprising more than one set of AC-DC integrated power supply units, wherein the AC-DC integrated power supply unit comprises an AC inlet wire power supply, a dual supply switching apparatus, a charging module, an AC output device, a voltage reduction silicon chain, a DC/DC module, a communication output device, a control bus output device, a storage battery set, a switching bus output device, an inversion power supply, an inversion output device, a 380V AC power supply, and a DC source. The station-use AC-DC integrated power supply system realizes the centralized management over the whole station power supply. As the integrated power supply system is provided with powerful data recording and history query functions, the maintenance staff can periodically copy the data for analysis, thereby making the maintenance management be more professional, targeted, and convenient.

Description

A kind of station AC/DC integrated power-supply system

Technical field

The utility model relates to power-supply system, particularly a kind of station AC/DC integrated power-supply system.

Background technology

Station, tradition hydroelectric station power supply, comparatively common scheme is disperseed, extremely shown in Figure 6 such as Fig. 3, be divided into systems such as exchanging (see figure 3), direct current (see figure 4), inverter (UPS) (see figure 6), communication power supply (see figure 5), each subsystem adopts and disperses design, independent group screen, equipment is produced, installs, is debugged by different supplier, and electric power system also distributes different professionals to manage.This pattern Main Problems has:

1) the electricity consumption source automatic degree of standing is not high.Generally incompatible by each subsystem communication stipulations that different suppliers provides, be difficult to realize network management, system lacks comprehensive analysis platform, has restricted the lifting of management;

2) economy is relatively poor.Direct current system configuration one cover or two cover batteries, inverter (UPS) uninterruptible power system configures respectively independently batteries separately, and waste is serious; AC system configuration power supply automatic switching apparatus has repeated configuration before the charging module, not only wasted but also made to be difficult to coordinated operation between the equipment.Standing can not consider with power resources, and making once, investment significantly increases;

3) installation, service coordination are difficult.The difference of each rainy interests of supplier makes installation, service coordination difficulty, can not show a candle to the station smooth and easy with power of alterating and direct current integrated " turn-key project " pattern;

4) operation maintenance is inconvenient.Stand and carry out maintenance management with power distribution different majors personnel: AC system and direct current system are safeguarded by transformer station personnel, inverter (UPS) is safeguarded by automation personnel, communication power supply has the Communication Personnel to safeguard, human resources can not totally be allocated, communication power supply, inverter (UPS) etc. are not included the strict scope of patrolling and examining of power transformation in yet, and reliability can not be guaranteed;

Be not difficult to find by the above problem of analysis-by-synthesis, standing does not have information sharing platform with power supply, so that impact station maintenance, system management, the deep level development of power supply; Standing is not designed for uniformity and carries out system optimization with power supply, and the up information of assigning can not Digital Transmission, namely is not have software platform, is that also not all switch can intelligent monitoring.

Integrated power supply is on the basis of the ripe core technology such as existing power station source, storage battery, charging module, the new module form of the power station being carried out integrated design and group screen production with power of alterating and direct current, communication power supply, uninterrupted power supply etc.

Summary of the invention

Technical problem to be solved in the utility model is, and is not enough for prior art, and a kind of station AC/DC integrated power-supply system is provided, and is used for the station with supervision and the control of integration power-supply system, and satisfies the requirement that digital transformer substation moves.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of station AC/DC integrated power-supply system, comprise that one is embedded with the AC/DC integrated power subsystem, the AC/DC integrated power subsystem comprises the interchange incoming power, double-power supply switching device, charging module, interchange feeds out equipment, voltage dropping silicon chain, the DC/DC module, communication feeds out equipment, the control mother feeds out equipment, batteries, close mother and feed out equipment, inverter, inversion feeds out equipment, the 380V AC power, DC power supply, described interchange incoming power is connected with double-power supply switching device, double-power supply switching device is by 380V bus and 380V AC power, interchange feeds out equipment connection, double-power supply switching device is connected with charging module, charging module, close mother and feed out equipment, batteries is connected with the first DC power supply by closing bus bar, the DC/DC module, the control mother feeds out equipment, inverter is connected with the second DC power supply by control bus, the DC/DC module feeds out equipment connection with communicating by letter, inverter and inversion feed out equipment connection, between voltage dropping silicon chain access closing bus bar and the control bus.

Compared with prior art, the utility model has been realized the centralized management to full station power supply, because integration power-supply system has powerful data record and historical query function, safeguard teams and groups regularly copies data analyzed, so maintenance management is more professional, more put in place, also more convenient, integration power-supply system has economic advantages more compared with traditional electric source modes, greatly saved spending, conservative estimation in equipment configuration, install, safeguard, and can save several ten thousand on the expense such as personnel's spending and arrive more than the hundreds of thousands unit.

Description of drawings

Fig. 1 is the power system structure schematic diagram of the utility model one embodiment closing bus bar and control bus segmentation;

Fig. 2 is the power system structure schematic diagram of the utility model one embodiment closing bus bar and not segmentation of control bus;

Fig. 3 is power station AC system structural representation commonly used; (a) AC system power supply entering line, not segmentation of single busbar connection; (b) AC system power supply entering line, sectionalized single busbar connection;

Fig. 4 is power station direct current system structural representation commonly used; (a) closing bus bar and not segmentation of control bus; (b) closing bus bar and control bus segmentation;

Fig. 5 is power station communication power supply structural representation commonly used;

Fig. 6 is the ups power structural representation.

Embodiment

As shown in Figure 2, the utility model one embodiment comprises a cover AC/DC integrated power subsystem, the AC/DC integrated power subsystem comprises the interchange incoming power, double-power supply switching device, charging module, interchange feeds out equipment, voltage dropping silicon chain, the DC/DC module, communication feeds out equipment, the control mother feeds out equipment, batteries, close mother and feed out equipment, inverter (UPS), inversion feeds out equipment, the 380V AC power, DC power supply, described interchange incoming power is connected with double-power supply switching device, double-power supply switching device is by 380V bus and 380V AC power, interchange feeds out equipment connection, double-power supply switching device is connected with charging module, charging module, close mother and feed out equipment, batteries is connected with the first DC power supply by closing bus bar, the DC/DC module, the control mother feeds out equipment, inverter (UPS) is connected with the second DC power supply by control bus, the DC/DC module feeds out equipment connection with communicating by letter, inverter and inversion feed out equipment connection, automatically between voltage dropping silicon chain access closing bus bar and the control bus; The first DC power supply is the DC230/115V DC power supply, and the second DC power supply is the DC220/110V DC power supply.

As shown in Figure 2, two cover AC/DC integrated power subsystems share 380V AC power and DC power supply, and two double-power supply switching devices of two covers, two cover AC/DC integrated power supplys are connected to each other.

Operating personnel can by the realization remote monitoring of background monitoring computer or by the upper comprehensively monitoring module (touch-screen) of installing of screen, realization be checked and local control the collection that DC charging module information, DC power supply part power supply entering line information, dc-battery and bus information, alternating current-direct current feed out on off state information, direct current component battery information.

Inverter (UPS) is finished the input voltage of interchange, direct current and the bypass of inverter (UPS).

The control of integrated power supply comprises on-site supervision and remote monitoring.Field monitoring and control section are comprised of control computer, management control software, manual centralized operation panel.Control computer and management control software form automatic monitored control system, are responsible for the next data preparation analysis of module transmission is made a policy according to control strategy, and data record is stored.Manually function, direct control are controlled in the realization parallel with automatic monitored control system of centralized operation panel.Remote monitoring commander part is comprised of computer, management software, internet transmission of virtual laboratory, by computer network, and the simultaneous display field working conditions.Remote monitoring has open interface, can expanded function or access other system.

AC power inlet wire one becomes from 1# factory in the station, and AC power inlet wire two becomes from 2# factory in the station; 1ATS, 2ATS are respectively 2 double-power supply switching devices (such as the CAP2 series of ChangShu Switch Manufacturing Co., Ltd), the switching of realization two-way AC power that can be quick, accurate, safe; 1TA, 2TA are current transformer, realize that large current conversion is that normalized current 5A gathers load current for exchanging acquisition module; 380V bus, closing bus bar, control bus are sectionalized single busbar connection (see figure 1) or not segmentation of single busbar connection (see figure 2), respectively power consumption equipment in the supply station; It is multiple that charging module common are

single module

5A, 10A, 20A etc., and the quantity of charging module is chosen according to the scale in power station; Voltage dropping silicon chain realizes that direct current switching voltage (being used for mechanism's energy storage, closing operation of circuit breaker etc.) step-down is that direct-current control voltage is (low than switching voltage, purposes is wider, as being used for various electric control loops, excitation, speed regulator etc.), for different DC equipment; The general single battery of batteries is 2V/ joint or 12V/ joint, calculate battery capacity according to the power station needs, be mainly used in the two-way AC power all during dead electricity by battery to power consumption equipment power supply in the station (as emergency lighting, by inversion to the background monitoring power supply, by the DC/DC module to the communication equipment power supply, provide circuit breaker etc. operating power, the uninterrupted power supply of other monitoring and protection equipment is provided); The DC/DC module realizes that direct current 220V/110V is converted to the required power supply of communication (being generally direct current 48V), and assurance communication apparatus working power is not interrupted;

Inverter (UPS), sending AC220V by inverter (UPS) by alternating current 220V behind rectifying and wave-filtering during normal operation provides the quality of power supply high power supply to background monitoring system, providing dc inversion by battery pack when exchanging dead electricity is alternating current 220V, when exchanging dead electricity or fault of converter by bypass automatic transfer Alternating Current Power Supply; Interchange feeds out equipment: for stable AC power is provided in standing, the capacity and the quantity that respectively feed out equipment configure according to the power station actual needs; Close mother and feed out equipment: use DC power supply for providing in standing to close a floodgate, the capacity and the quantity that respectively feed out equipment configure according to the power station actual needs; The control mother feeds out equipment: use DC power supply for control is provided in standing, the capacity and the quantity that respectively feed out equipment configure according to the power station actual needs; Communication feeds out equipment: guarantee the non-stop run of communication apparatus for the interior communication apparatus of standing provides working power.

Claims

1. station AC/DC integrated power-supply system, comprise that one is embedded with the AC/DC integrated power subsystem, the AC/DC integrated power subsystem comprises the interchange incoming power, double-power supply switching device, charging module, interchange feeds out equipment, voltage dropping silicon chain, the DC/DC module, communication feeds out equipment, the control mother feeds out equipment, batteries, close mother and feed out equipment, inverter, inversion feeds out equipment, the 380V AC power, DC power supply, it is characterized in that, described interchange incoming power is connected with double-power supply switching device, double-power supply switching device is by 380V bus and 380V AC power, interchange feeds out equipment connection, double-power supply switching device is connected with charging module, charging module, close mother and feed out equipment, batteries is connected with the first DC power supply by closing bus bar, the DC/DC module, the control mother feeds out equipment, inverter is connected with the second DC power supply by control bus, the DC/DC module feeds out equipment connection with communicating by letter, inverter and inversion feed out equipment connection, between voltage dropping silicon chain access closing bus bar and the control bus.

2. station according to claim 1 AC/DC integrated power-supply system, it is characterized in that, described AC/DC integrated power subsystem quantity is two covers, two double-power supply switching devices of two cover AC/DC integrated power subsystems are connected to each other, and two cover AC/DC integrated power subsystems share 380V AC power and DC power supply.

3. station according to claim 1 AC/DC integrated power-supply system is characterized in that, described the first DC power supply is the DC230/115V DC power supply, and the second DC power supply is the DC220/110V DC power supply.