CN1305201C - Passive capacity on line direct current power supply screen - Google Patents
Passive capacity on line direct current power supply screen Download PDFInfo
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- CN1305201C CN1305201C CNB031387985A CN03138798A CN1305201C CN 1305201 C CN1305201 C CN 1305201C CN B031387985 A CNB031387985 A CN B031387985A CN 03138798 A CN03138798 A CN 03138798A CN 1305201 C CN1305201 C CN 1305201C
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Abstract
The present invention relates to a passive capacitor type on-line direct current power supply screen which comprises a voltage-adjustable eliminator supply, a direct current energy storage compensation device, a direct current contactor and direct current feed out loops. The present invention is characterized in that the direct current energy storage compensation device is a direct current magnify capacitor energy storage compensation device which is not smaller than 0.8 farad; the present invention is also provided with an automatic time delay switching direct current power controller and a system power voltage sampling device, and the system power voltage sampling device is connected with the input end of the automatic time delay switching direct current power controller; the system power voltage sampling device is provided with two single-phase voltage transformers TV and alternating current voltage relays 1YJ and 2YJ, and energizing coils of the two alternating current voltage relays 1YJ and 2YJ are connected with the two single-phase voltage transformers TV; the automatic time delay switching direct current power controller is a time delay control circuit which is mainly composed of two time relays SJ1 and SJ2, an intermediate relay ZJ, a direct current contactor CZ and a capacitor power supply control switch 3K. The device has the advantages of little lump sum investment, small size and long service life of energy storing elements.
Description
Technical field
The present invention relates to a kind of on-line direct current power supply panel.
Background technology
The on-line direct current power supply panel is used to have the direct current of people or unattended transformer station, distribution substation to close a floodgate and operating power, is specially adapted to power supply and has a power failure and do not have that operation divides, the coordinative composition of equipments operating position of power switch before back and the incoming call.Existing passive on-line direct current power supply panel mainly adopts expensive batteries and complicated high-tech charging device to form.Weak point is that one-time investment is big, and a set of equipment is about more than 150,000 yuan, and operational environment requires high, complicated operation, and the energy-storage travelling wave tube batteries need regularly be done the activation maintenance and handle, and makes under the condition of making good use of the general life-span in 5～8 years.
Summary of the invention
For the one-time investment that overcomes present passive on-line direct current power supply panel is big, operational environment requires high, and volume takes up room greatly, and the energy-storage travelling wave tube life-span lacks and the weak point of complicated charging operations.It is little to the invention provides a kind of one-time investment, and the operational environment service condition is low, and volume is little, and the energy-storage travelling wave tube life-span is long, passive on-line direct current power supply panel simple to operate.
But passive on-line direct current power supply panel of the present invention comprises the voltage regulating rectifier power supply, the dc energy storage compensation arrangement, D.C. contactor CZ and direct current feed out each loop, but the positive output end of voltage regulating rectifier power supply is connected with the positive input terminal of dc energy storage compensation arrangement through a contact of combined electrical switch, negative output terminal is connected with direct current negative busbar-M through another contact of unit switch, the dc energy storage compensation arrangement just, negative output terminal is connected with direct current negative busbar-M with direct current positive bus+M respectively, direct current feeds out each loop and is connected direct current positive bus+M and direct current negative busbar-M, it is characterized in that: said dc energy storage compensation arrangement is that direct current amplifies the capacitance energy storage compensation arrangement, the used energy-storage travelling wave tube of this circuit is the ultracapacitor that capacitance is not less than 0.8 farad of withstand voltage 200V of being not less than, cooperate in order to amplify the capacitance energy storage compensation arrangement with direct current, this on-line direct current power supply panel also is being provided with automatic time delay switching DC power supply controller and system power supply voltage sampling apparatus, and the system power supply voltage sampling apparatus is connected with the input of automatic time delay switching DC power supply controller; The system power supply voltage sampling apparatus is made up of two single-phase potential transformer TV of step-down and the first line voltage-selected switch KV1 and the first alternating voltage relay 1YJ and the second alternating voltage relay 2YJ, and the hot-wire coil of the first alternating voltage relay 1YJ and the second alternating voltage relay 2YJ is connected to the low-voltage output of two single-phase potential transformer TV; The delay control circuit that automatic time delay switching DC power supply controller is made up of very first time relay SJ1, second time relay sj 2, intermediate relay ZJ, capacitor power control switch 3K, second time relay sj 2 is the time delay relay of configuration delay capacitor C3, and delay time is not less than 18 seconds.This control circuit has positive terminals and negative terminals, positive terminals are connected with the positive binding post+CM of capacitor power that direct current amplifies the capacitance energy storage compensation arrangement, negative terminals are connected with the negative binding post-CM of capacitor power, and the normally opened contact of the first alternating voltage relay 1YJ and the second alternating voltage relay 2YJ and very first time relay SJ1 hot-wire coil are connected between negative terminals and the positive terminals.
More particularly, direct current amplifies the capacitance energy storage compensation arrangement to be made up of a minimum super energy storage capacitor and auxiliary electrical device, and the auxiliary electrical device has DC voltage relay YJ, discharge diode VD6, discharge iodine-tungsten lamp R, discharges and recharges change over switch K
CF, the negative binding post-CM of capacitor power change over switch 3HK, the positive binding post+CM of capacitor power and capacitor power, the positive pole of super energy storage capacitor is connected the positive binding post+CM of capacitor power, negative pole is connected the negative binding post-CM of capacitor power, the end of the positive pole of discharge diode VD6 and iodine-tungsten lamp R all is connected the positive binding post+CM of capacitor power, and the other end of iodine-tungsten lamp R is connected and discharges and recharges change over switch K
CFThe the 3rd and the 4th contact, what the negative pole of discharge diode VD6 was connected to D.C. contactor CZ often opens the cathode output end of main contacts as this circuit, 3HK is connected to direct current positive bus+M through the capacitor power change over switch, discharges and recharges change over switch K
CFThe 1st contact and the 5th contact, through capacitor power change over switch 3HK, charge power supply selector switch K
CXBe transferred to the positive wiring point of DC power supply unit switch 2HK, negative binding post-the CM of the capacitor power of this circuit is connected through the 8th contact that dc fuse 13RD bears binding post-X with charging and discharges and recharges change over switch KCF, capacitor power is born the fixed contact that negative output terminal that binding post-CM amplifies the capacitance energy storage compensation arrangement as direct current meets capacitor power change over switch 3HK simultaneously, receives direct current negative busbar-M through this change over switch.The 2nd contact, the 6th contact, the 7th contact that discharge and recharge change over switch KCF link together and are connected with the positive binding post+X that charges.
Automatic time delay switching DC power supply controller is to connect like this, the normally opened contact of the first alternating voltage relay 1YJ and the second alternating voltage relay 2YJ and very first time relay SJ1 hot-wire coil are connected between negative terminals and the positive terminals, the two ends of second time relay sj, 2 hot-wire coils and the hot-wire coil of intermediate relay ZJ is connected in parallel again and the normally-closed contact of very first time relay SJ1 is cascaded is connected on negative terminals with just between the terminals, capacitor power control switch 3K, the normally opened contact of second time relay sj 2, intermediate relay ZJ a pair of often open/and normally-closed contact and D.C. contactor CZ hot-wire coil be cascaded successively, be connected between positive terminals and the negative terminals M.
The system power supply voltage sampling apparatus is to connect like this, two single-phase potential transformer TV are connected into V-type, two outputs of four outputs of outlet side link together and ground connection, the hot-wire coil of the first alternating voltage relay 1YJ and the second alternating voltage relay 2YJ has four terminals, two terminals are connected together and are connected with the line of the ground connection of single-phase potential transformer TV output, and two terminals are connected with two other output of single-phase potential transformer TV respectively in addition.The output of single-phase potential transformer TV is connected with the 1st contact of the first line voltage-selected switch KV1, the output that is connected with ground is connected with the 8th contact of this switch, another output is connected with the 6th contact with the 3rd contact of this switch, the the 2nd, two the 4th contact of the first line voltage-selected switch KV1 links together, and the 7th and two the 5th contact links together.
Reliable in order to operate, for the power supply of duplex feeding, the AC power two-way is set throws device mutually, this circuit mainly is made up of the circuit of control each other of two symmetries.
DC power supply panel of the present invention has following advantage:
1, this supply unit has automatic time delay switching DC power supply controller, and in the time of can accomplishing the power failure of mains supply system power supply, this device can be delayed time for direct current to the direct current using electricity system, and during the system power supply incoming call, can delay time to the direct current using electricity system provides DC power supply.
2, be low current charge (2～5A) with the low capacity equipment charge, instantaneous continuous big electric current (100A～150A) can be provided, there are voltage stabilizing and electric current to amplify regulating and compensating role to DC power supply, can be because of the fluctuation of AC power and the back brake operation interruptedly supplying power of power supply department, and be affected.
3, when the 10KV of mains supply system power supply has a power failure, the energy of ultracapacitor storage can be made direct current system back-up source in short-term, tripping operation can be provided in short-term, close a floodgate, the control power supply.
4, do not having under the power supply situation of mains supply system, external single-phase low capacity charger can provide work long hours a power supply and the continuously big electric current power switch of interruption to direct current system.
5, this device performance is stable, energy storage device (ultracapacitor) is non-maintaining, simple to operate, one-time investment is little, volume is little, only being 30,000 yuan compares with the accumulator direct current supply of same capability screen, investment only is 1/4, volume is 1/2, and the operational environment service condition is low, as requiring low to mains ripple, the serviceability temperature wide ranges, the energy-storage travelling wave tube life-span reaches 20 years.
Description of drawings
Fig. 1 is the circuit block diagram of embodiments of the invention.
Fig. 2 is that but voltage regulating rectifier power supply, the direct current of embodiments of the invention amplifies the capacitance energy storage compensation arrangement and DC power supply feeds out each circuit wiring diagram.
Fig. 3 is the 10V system power supply voltage sampling apparatus figure of embodiments of the invention.
Fig. 4 is the automatic time delay switching DC power supply controller figure of embodiments of the invention.
Fig. 5 is that the AC power two-way of embodiments of the invention is thrown installation drawing mutually.
Fig. 6 is direct current flash of light indicating circuit figure.
Fig. 7 is embodiments of the invention internal structure and electrical equipment layout plan.
Fig. 8 is a passive on-line direct current power supply panel outline drawing of the present invention.
Among the above-mentioned figure:
1, but the AC power two-way is thrown device 2 voltage regulating rectifier power supplys mutually
3, system power supply voltage sampling apparatus 4, automatic time delay switching DC power supply controller
5, direct current amplifies capacitance energy storage compensation arrangement 6, D.C. contactor CZ
7, direct current feeds out each loop
But TV single-phase potential transformer T voltage regulating rectifier transformer
R discharge resistance (iodine-tungsten lamp) KTY pressure regulation change over switch
A1, B1, C1, N1 one road electric power incoming line terminal
A2, B2, C2, N2 two road electric power incoming line terminals
1-4H power supply indicator 5H tests the neutral dotted line of white lamp N1, N2
The positive binding post of RF shunt+CM capacitor power-CM capacitor power is born binding post
+ X negative the binding post of positive binding post-X charging that charges
1RD
G, 2RD
G, 3RD
GHigh-tension fuse RD
A, RD
CThe secondary fuse
1RD-6RD AC power control fuse 7RD, 8RD AC power fuse
9RD, 10RD DC power supply fuse output 11RD capacitor discharge fuse
12RD, 13RD charging fuse 14RD, 15RD control circuit fuse
The 16RD-18RD direct current feeds out fuse 19RD combined floodgate fuse
But X1-X6 is rectifying device binding post A3, B3 voltage regulating rectifier power input terminal
C
BFiltering capacitor R
BThe filter resistance KV1 first line voltage-selected switch
The KV2 second line voltage-selected switch C1, C2 ultracapacitor C3 delay capacitor
1K, 2K AC power control switch 3K capacitor power control switch
K
CXCharge power supply selector switch K
CFDischarge and recharge change over switch
1KF, 2KF air switch 1HK AC power unit switch
+ M direct current positive bus-M direct current negative busbar
2HK DC power supply unit switch 3HK capacitor power unit switch
3KF, 4KF, 5KF, 6KF direct current feed out air switch YA flash point test button
1GZP, 2GZP alarm window R6 flashing relay additional resistance
VD1, VD2, VD3, VD4, VD5 rectification diode ZJ auxiliary relay
The VD6 discharge diode 1CJ first A.C. contactor 2CJ second A.C. contactor
The CZ D.C. contactor 1YJ first alternating voltage relay 2YJ second alternating voltage relay
SJ1 very first time relay SJ2 second time relay
V1, V2 A.C. voltmeter V3 D.C. voltmeter SGJ flashing relay
V4 capacitor voltage table A1, A2 DC ammeter YJ DC voltage relay
Embodiment
The circuit block diagram of Fig. 1 has been described the composition of this passive on-line direct current power supply panel, but it is thrown device 1 voltage regulating rectifier power supply 2, system power supply voltage sampling apparatus 3, automatic time delay switching DC power supply controller 4, direct current mutually by the AC power two-way and amplifies capacitance energy storage compensation arrangement 5, D.C. contactor CZ6 and direct current and feed out each loop 7 and form.The two-way AC power three-phase four-wire system that is input as of power supply panel is introduced, and delivers to the two-way power supply and throws circuit mutually rectifier transformer is powered, and the supply power mode of its interchange is for standby each other.
10V system power supply voltage sampling apparatus 3 is referring to Fig. 3, it is made up of two single-phase potential transformer TV and 12 contact line first voltage-selected switch KV1 and the first alternating voltage relay 1YJ and the first alternating voltage relay 2YJ, two single-phase potential transformer TV are connected into V-type, input side is 10KV, outlet side is 0.1KV, two outputs of four outputs of outlet side link together and ground connection, the hot-wire coil of the first alternating voltage relay 1YJ and the second alternating voltage relay 2YJ has four terminals, two terminals are connected together and are connected with the line of the ground connection of single-phase potential transformer TV output, and two terminals are connected with two other output of single-phase potential transformer TV respectively in addition.The output of single-phase potential transformer TV is connected with the 1st contact of the first line voltage-selected switch KV1, the output that is connected with ground is connected with the 8th contact of this switch, another output is connected with the 6th contact with the 3rd contact of this switch, the the 2nd, two the 4th contact of the first line voltage-selected switch KV1 links together, and the 7th and two the 5th contact links together.
Automatic time delay switching DC power supply controller 4 is referring to Fig. 4, it is made up of very first time relay SJ1, second time relay sj 2, intermediate relay ZJ, capacitor power control switch 3K, second time relay sj 2 is the time delay relay of configuration delay capacitor C3, and the delay time of present embodiment is not less than 18 seconds.This control circuit has positive terminals and negative terminals, positive terminals are connected with the positive binding post+CM of capacitor power that direct current amplifies capacitance energy storage compensation arrangement 5, negative terminals are connected with the negative binding post-CM of capacitor power, the normally opened contact of the first alternating voltage relay 1YJ and the second alternating voltage relay 2YJ and very first time relay SJ1 hot-wire coil are connected between negative terminals and the positive terminals through dc fuse 14RD and 15RD, the two ends of second time relay sj, 2 hot-wire coils and the hot-wire coil of intermediate relay ZJ is connected in parallel again and the normally-closed contact of very first time relay SJ1 is cascaded is connected on negative terminals with just between the terminals through dc fuse 14RD and 15RD, capacitor power control switch 3K, the normally opened contact of second time relay sj 2, intermediate relay ZJ a pair of often open/and normally-closed contact and D.C. contactor CZ hot-wire coil be cascaded successively, be connected between positive terminals and the negative terminals through dc fuse 14RD and 15RD.
Direct current amplifies capacitance energy storage compensation arrangement 5 and sees Fig. 2, and it is made up of super energy storage capacitor C1, C2 and the auxiliary electrical device of two parallel connections, and the auxiliary electrical device has DC voltage relay YJ, discharge diode VD6, discharge iodine-tungsten lamp R, discharges and recharges change over switch K
CFDC ammeter A2 and D.C. voltmeter V4, capacitor power change over switch 3HK, positive binding post+CM of capacitor power and capacitor power are born binding post-CM, two super energy storage capacitor C1, the positive pole of C2 is connected the positive binding post+CM of capacitor power, negative pole is connected the negative binding post-CM of capacitor power, super energy storage capacitor C1, the end of the positive pole of C2 discharge diode VD6 and the hot-wire coil of DC voltage relay YJ and iodine-tungsten lamp R all is connected the positive binding post+CM of capacitor power, and the hot-wire coil other end of DC voltage relay YJ and the other end of iodine-tungsten lamp R link together and are connected and discharge and recharge change over switch K
CFThe the 3rd and the 4th contact, the negative pole of discharge diode VD6 is often opened the cathode output end of main contacts as this circuit through what capacitor discharge fuse 11RD was connected to D.C. contactor CZ, be connected to the direct current positive bus+M that exports as DC power supply through capacitor power change over switch 3HK, discharge and recharge the 1st contact and the 5th contact of change over switch KCF, through DC ammeter A2, capacitor power change over switch 3HK, charge power supply selector switch K
CXBe transferred to the positive wiring point of DC power supply unit switch 2HK, negative binding post-the CM of the capacitor power of this circuit is connected through the 8th contact that dc fuse 13RD bears binding post-X with charging and discharges and recharges change over switch KCF, capacitor power is born the fixed contact that negative output terminal that binding post-CM amplifies capacitance energy storage compensation arrangement 5 as direct current meets capacitor power change over switch 3HK simultaneously, receives direct current negative busbar-M as DC power supply output through this change over switch.Discharge and recharge change over switch K
CFThe 2nd contact, the 6th contact, the 7th contact link together through dc fuse 12RD with the charging positive binding post+X be connected.
But voltage regulating rectifier power supply 2 is seen Fig. 2, and it is mainly by single line voltage regulating rectifier transformer T, 5 rectifier diodes and AC power unit switch 1HK, voltage-regulating combined switch K
TY, DC power supply unit switch 2HK and fuse form, the line that has of the input side of voltage regulating rectifier transformer T is divided into 380V, 400V, 420V three retainings, filtering capacitor C
BWith filter resistance R
BBe connected on two outputs of this transformer, two outputs and 4 rectifier diode VD1 of this transformer, VD2, VD3, VD4 forms the two-phase bridge rectifier, D.C. voltmeter V3 is connected in the two ends output of two-phase bridge rectifier, two rectifier diode VD1 and the negative pole of VD3 and the positive pole of rectifier diode VD5 link together, the negative pole of rectifier diode VD5 is connected with binding post X5, be connected to the fixed contact of DC power supply unit switch 2HK again through DC power supply fuse output 9RD and DC ammeter A1, but positive output end as voltage regulating rectifier power supply 2, rectifier diode VD2, the positive pole of VD4 is connected with binding post X6, be connected to another fixed contact of DC power supply unit switch 2HK again through DC power supply fuse output 10RD, but as the negative output terminal of voltage regulating rectifier power supply 2, another fixed contact that DC power supply unit switch 2HK is corresponding with it is connected with direct current negative busbar-M.
Direct current feeds out each loop 7 and sees Fig. 2, it is mainly by feeding out air switch 3KF with four two line bidirectional, dcs that direct current positive bus+M is connected with direct current negative busbar-M, 4KF, 5KF, 6KF forms, the output that four direct currents feed out air switch is respectively the control mains switch, the signal power source switch, operating power switch and power switch switch, the output that each direct current feeds out air switch is connecting a direct current and is feeding out fuse, connecting indicator light between two outputs, an output that feeds out air switch 3KF as direct current is connecting direct current and is feeding out fuse 16RD, is connecting indicator light 5H (RD) between two outputs.
The AC power two-way is thrown device 1 mutually and is seen Fig. 5, it mainly is made up of the circuit of control each other of two symmetries, the composition of control circuit is described with a control circuit on the right in scheming, this control circuit is mainly by air switch 2KF, the second A.C. contactor 2CJ and AC power control switch 2K form, three fixed contacts of air switch 2KF respectively with the A2 of the AC power of 400V, B2, C2 connects, three fixed contacts in addition of air switch 2KF connect with three fixed contacts of the second A.C. contactor 2CJ respectively, A line and corresponding two fixed contacts of B line with 400V are arranged among two fixed contacts such as the figure simultaneously, often opening fixed contact with two of AC power control switch 2K is connected, two often the opening corresponding two other fixed contact of fixed contact and be connected the hot-wire coil that is being connected the second A.C. contactor 2CJ with two normally closed fixed contacts of these two corresponding opposite sides of normally closed fixed contact of this contactor with two normally closed fixed contacts of the first A.C. contactor 1CJ of this switch with this.Three fixed contacts in addition of the second A.C. contactor 2CJ are connected with three-phase output line A, B, C respectively.Be connected on the fixed contact of air switch 2KF and another normally opened contact of the power supply indicator 4H between the zero line, AC power control fuse 6RD and the second A.C. contactor 2CJ in this control circuit in addition.The control circuit on the left side and the right is identical among the figure, just the second A.C. contactor 2CJ in the figure right side is changed to the first A.C. contactor 1CJ, the contact of the first A.C. contactor 1CJ is changed to the contact of the second A.C. contactor 2CJ, replace air switch 2KF with air switch 1KF, be connected with A1, B1, the C1 of 400V AC power.Connecting the second line voltage-selected switch KV2 at three-phase output line A, B, C, 3,6 contacts of the second line voltage-selected switch KV2 meet three-phase output line A, 8 and 1 contact meets the B and the C of three-phase output line respectively, 2 and 4 contacts of a termination second line voltage-selected switch KV2 one of A.C. voltmeter V2, another termination 5 and 6 contacts.
Present embodiment is disposing direct current flash of light indicating circuit, referring to Fig. 6.
Fig. 7 is seen in the installation of the electric elements of present embodiment in casing.
The card of present embodiment is arranged and is seen Fig. 8.
Introduce the principle of the present invention and the course of work below in conjunction with Fig. 1 to Fig. 5.
1, the course of work of this device when system power supply is sent a telegram here
(1) send electric start-up course to DC power supply panel
When the 10KV system sends a telegram here, because the circuit breaker of high pressure 10KV side and 0.4KV side all disconnects the position, the equal AC-less power of this power supply panel two-way, this moment, voltage transformer TV directly was connected on the 10KV system power supply, the first alternating voltage relay 1YJ, the second alternating voltage relay 2YJ passes to automatic time delay switching DC power supply controller 4 through the sampling of voltage transformer TV with signal, two alternating voltage relay 1YJ and 2YJ normally opened contact closure, very first time relay SJ1 coil is subjected to electric normally opened contact by the time closure of adjusting, make the intermediate relay ZJ coil be subjected to electric normally opened contact closure and second time relay sj, 2 coils to be subjected to the instantaneous closure of electric normally opened contact, capacitor power control switch 3K is closing the position, make D.C. contactor CZ coil be subjected to electric CZ main contacts closure, at this moment, direct current amplifies in the capacitance energy storage compensation arrangement 5, ultracapacitor C1 and C2 electric energy stored, by the positive binding post+CM of capacitor power through discharge diode VD6, discharge fuse 11RD, the main contacts of D.C. contactor CZ (refers to lead to specified big electric current, and the contact that arc-control device is arranged), capacitor power unit switch 3HK delivers to direct current positive bus+M that DC power supply feeds out each loop 7; Capacitor power is born binding post-CM and is delivered on direct current negative busbar-M that DC power supply feeds out each loop 7 through 3HK, the DC power supply that makes direct current positive and negative busbar ± M is delivered to control, signal, operation, combined floodgate respectively by air switch 3KF, 4KF, 5KF, 6KF and is fed out each loop, for distribution equipment is sent dc supply to, make control system control the high-low pressure breaker closing automatically, behind the combined floodgate, system 10KV alternating current send this power supply panel through power transformer again.
(2) the two-way power supply is thrown the course of work of circuit mutually
Present embodiment be input as two-way AC power 1 road and 2 tunnel, and introduce with three-phase four-wire system respectively, delivers to the AC power two-way and throw device 1 mutually, but to 2 power supplies of voltage regulating rectifier power supply, its operational mode is for standby each other.Before sending electricity, air switch 1KF, 2KF, AC power control switch 1K, 2K is all closing the position, when the two-way power supply send electricity, power supply indicator 1H (YE), 2H (YE) all bright (amber light), the hot-wire coil of the first A.C. contactor 1CJ and the second A.C. contactor 2CJ exists the work earlier that is subjected to electricity earlier, be not subjected to the standby characteristic of doing of electricity, hot-wire coil as 1CJ is subjected to earlier, A1 phase power supply is through fuse 3RD, AC power control switch 1K, the normally-closed contact of 2CJ, the hot-wire coil of 1CJ, the normally-closed contact of 2CJ and AC power control switch 1K are to B1 power supply mutually, the auxiliary normally-closed contact of A.C. contactor 1CJ disconnects, and makes the hot-wire coil dead electricity of the second A.C. contactor 2CJ, and the main contacts of 2CJ disconnects, but make 2 road power supplys can not be to voltage regulating rectifier power supply 2 input terminal A3, the B3 power supply, 1CJ main contacts closure makes AC power 1 route input terminal A1 simultaneously, B1, C1, N1 is through air switch 1KF, but the 1CJ main contacts send voltage regulating rectifier power supply 2 terminal A3 and B3.1CJ assists the normally opened contact closure, and power supply indication red light 3H (RD) is bright, and expression power supply 1 tunnel send electricity normal.When power supply 1 tunnel dead electricity (power failure), the hot-wire coil dead electricity of 1CJ, the 1CJ main contacts disconnects, the auxiliary normally-closed contact closure of 1CJ, make power supply 2 route input terminal A2 through air switch 2KF, AC power control fuse 4RD, AC power control switch 2K, 1CJ assists normally-closed contact, 2CJ hot-wire coil, 1CJ normally-closed contact, AC power control switch 2K air switch 2KF holds to power supply 2 road B2, form close access, make the 2CJ hot-wire coil be subjected to electricity, the 2CJ normally-closed contact disconnects, the 1CJ wire loop is opened circuit, while 2CJ main contacts closure, power supply 2 route input terminal A2, B2, C2, N2 is through air switch 2KF, and the main contacts of 2CJ is delivered to input terminal A3, but B3 is to 2 power supplies of voltage regulating rectifier power supply.2CJ assists the normally opened contact closure, and power supply indication red light 4H (RD) is bright, represents 2 road power supply normal power supplies.
In like manner: when the two-way power supply sent electricity simultaneously, No. 2 A.C. contactor 2CJ were subjected to operation principle that electricity puts into operation and No. 1 A.C. contactor 1CJ to be subjected to the electricity operation principle that puts into operation identical earlier earlier.
(3) DC power supply is carried out the process of pressure regulation
But the pressure regulation of DC power supply realizes that by voltage regulating rectifier power supply 2 in the AC side pressure regulation, DC side detects.D.C. voltmeter V3 be monitor VD refer generally to be shown 230V, when D.C. voltmeter V3 indicated number is lower than 230V when a lot, adjust pressure regulation change over switch K
TYShould adjust to the low-voltage gear; When D.C. voltmeter V3 indicated number is higher than 230V when a lot, pressure regulation change over switch K
TYAdjust to the high voltage gear.Be transferred to the 220V of regulation---in the voltage range of 230V.Be in course of adjustment, can be because of being interrupted the rectifier transformer power supply, and cause direct current positive and negative busbar ± M voltage fluctuation and interruption, because ultracapacitor C1 and C2 are to system's DC power supply supplementary power this moment.
(4) the charging course of work of ultracapacitor C1, C2
But the DC power supply of voltage regulating rectifier power supply 2 outputs is accumulation power supplies of ultracapacitor C1 and C2, and direct current amplifies the special circuit that capacitance energy storage compensation arrangement 5 is charging, work discharge and self discharge technical finesse to ultracapacitor C1, C1.In order to solving ultracapacitor C1, very little about 1 Ω of C2 internal resistance, charge power supply is equivalent to the fragile charging device of short circuit and in self discharge, can not directly discharges with conductor.
When ultracapacitor C1, C2 are charged, with charge power supply selector switch K
CXPut " closing the position " with capacitor power unit switch 3HK, discharge and recharge change over switch K
CFRemove and put " charging " position (handle vertically 1. 3., 5. 7. logical position), connect direct current and amplify capacitance energy storage compensation arrangement 5, the charge power supply positive pole is by+2HK → K
CX→ 3HK → A
2→ K
CF1. 3. → R is to ultracapacitor C1, the positive pole of C2, the charge power supply negative pole by 2HK →-M → 3HK → to the negative pole of ultracapacitor C1 and C2, to ultracapacitor C1 and C2 charging, the size of charging current is self-adjusting by discharging and recharging resistance R (iodine-tungsten lamp), ultracapacitor C1 when beginning to charge, C2 two ends no-voltage, capacitor voltage table V4 is 0V, about resistance R and the nearly 220V of DC voltage relay YJ coil both end voltage, the closed alarm window 1GZP of YJ normally opened contact shows " capacitor electric energy deficiency ", referring to Fig. 6, the power 500W of discharge resistance R, about the about 2.3A of the electric current that passes through, ammeter A
2Be 2.3A.Along with constantly increasing terminal voltage, constantly increases the electric weight of ultracapacitor C1, C2, resistance R both end voltage difference reduces, charging current reduces, when ultracapacitor C1, C2 both end voltage equate with the DC power supply voltage ± M of system or near the time, charging current trends towards zero, resistance R and YJ both end voltage also trend towards zero, DC voltage relay YJ coil losing electricity, the normally closed closure of YJ, this moment, alarm window 2GZP showed " capacitor electrode abundance ", ultracapacitor C1, C2 are in floating charge state.
When primary charging or maintenance have been put ultracapacitor C1, C2 electricity and are recovered to charge again, capacitor power control switch 3K should be removed to put and close the position, after ultracapacitor C1, the C2 abundance, voltage reaches the 220-230V of regulation, and CZ can supply direct current to system equipment by automatic closing.
2, this device is for the galvanic course of work
But the voltage regulating rectifier power supply 2 of this equipment, the 8A direct current can be provided, but in actual the use, " charging current " adds to become and sets fully the operating current sum often less than 8A, general maximum charging current 2.3A to ultracapacitor C1, C2, the about 1-3A of electricity consumption electric current of equipment, so this device is when operate as normal, on the one hand ultracapacitor is charged, to the distribution equipment power supply, its total maximum current is less than 5A, behind general ultracapacitor C1, the C2 full charge on the other hand, floating current is very little, mainly is that equipment electricity consumption electric current is generally less than 2A.When meeting greater than the short-term operation electric current more than the 8A, or operation combined floodgate maximum current is during less than 150A, ultracapacitor C1, C2 utilizes the electric energy of self abundance, demand to the big electric current of DC equipment, mend and taste supply, a big operating current or big switching current are provided, guarantee the moment power supply of big electric current, after intact again by system's direct current to ultracapacitor C1, the C2 electric energy supplement, direct current amplifies the effect that capacitance energy storage compensation arrangement 5 has played the offset current burning voltage here and amplified output DC stream, also is ultracapacitor C1, the work discharge process of C2.
The course of work of this device discharge when 3, system power supply has a power failure
After 10KV or the power failure of 400V system power supply; the automatic time delay switching DC power supply controller 4 and the direct current of the design of this device amplify capacitance energy storage compensation arrangement 5; can feed out powering for 18 seconds in each loop 7 to DC power supply with the DC installation time-delay; o-volt protection tripping operation in guaranteeing during this period of time, the electricity consumption of spring energy agency.After 18 seconds, D.C. contactor CZ6 cuts off capacitor power automatically, and the electric energy of ultracapacitor C1, C2 is preserved, and prepares the combined floodgate electric energy when sending a telegram here for system.
Automatic time delay cuts off the course of work of capacitor power 18 seconds.After 10KV voltage has a power failure, the first alternating voltage relay 1YJ, its normally opened contact of hot-wire coil dead electricity of the second alternating voltage relay 2YJ is opened, make time relay sj 1 coil losing electricity, SJ1 normally opened contact moment opens, make the intermediate relay ZJ dead electricity, second time relay sj, 2 coils are by delay capacitor C3 and connect 18 seconds of powering, in this time, second time relay sj, 2 Time Delay Opening normally opened contacts, be closed always, make ultracapacitor C1, C2 capacitor power positive pole+CM is through fuse 14RD capacitor power control switch 3K, second time relay sj, 2 Time Delay Opening contacts, the intermediate relay ZJ normally-closed contact, D.C. contactor CZ coil, fuse 15RD has constituted the closed-loop path to capacitor power negative pole-CM, make D.C. contactor CZ coil be subjected to electricity, the closed always connection of D.C. contactor CZ main contacts also kept for 18 seconds always.Meanwhile, ultracapacitor C1 in the direct current amplification energy storage compensating circuit 5 and C2 electric energy stored feed out each loop 7 power supply (discharge) to DC power supply.Because big a lot of of the forward resistance of the resistance value ratio discharge diode VD6 in parallel of DC voltage relay YJ and discharge resistance R, capacitor power is said to the discharging current path of direct current positive and negative busbar ± M, the parallel circuits of YJ and R is equivalent to open circuit, discharge diode VD6 said be equivalent to path, the positive discharge path of current be by the positive pole of ultracapacitor C1 and C2 → discharge diode VD6 → discharge fusing 11RD → D.C. contactor CZ often open main contacts → capacitor power unit switch 3HK → to direct current positive bus+M, the negative discharge path of current is by negative pole → capacitor power unit switch 3HK of ultracapacitor C1 and C2 → to direct current negative busbar-M.Promptly direct current is fed out each loop 7 power supply.If this time, the electricity consumption electric energy makes that greater than the capacitor electric energy capacitor power voltage (capacitor voltage table V4) pressure drop is low excessively, less than 18 seconds, D.C. contactor CZ power failure tripping, interruption of power supply, can augment ultracapacitor again to ultracapacitor C1 and C2, increase electric energy till meeting the demands.
4, system power supply has a power failure, and uses the course of work of external charge equipment
Turn-off charge power supply selector switch K earlier
CX, discharging and recharging change over switch K
CFRemove to " charging " position, amplify at direct current again that the positive binding post+X of charging in the capacitance energy storage compensation arrangement 5 and negative binding post-X are external to have charging voltage 230V, the charging device of electric current 5A.The charging current path of this moment is by charging device positive pole → charging fuse 12RD → discharge and recharge change over switch K
CF7. 5. → discharge and recharge change over switch K
CF1. 3. → discharge resistance R → ultracapacitor C1 and C2 positive pole; The negative pole of binding post-X → charging fuse 13RD → ultracapacitor C1 and C2 is born in charging device negative pole → charging, ultracapacitor C1, C2 are charged, voltage control is about 230V, capacitor voltage table V4 indication is approaching with charging device voltage 230V or when equating, ultracapacitor C1 and C2 abundance are in floating charge state.Satisfying the operating current of equipment (operating current should less than charging current) this moment, also can satisfy the big electric current (≤150A) work of continuous instantaneous combined floodgate simultaneously.
In the present embodiment: system power supply sampling end voltage (a1, b1, c1 end): AC 100V
Behind system's incoming call, electric setting time scope (SJ1) is sent in time-delay: 1～10 second
Behind the system blackout, time-delay power-on time (SJ2): 〉=18 seconds
Operating current 5A
The maximum energy storage 33.KJ of C1, C2 ultracapacitor model C FG1 0.8F DC240-280V internal resistance 0.65 Ω leakage current is not less than 1400 μ F less than 1.5mA overall dimension 220 * 220 * 450mmC3 delay capacitor capacitance
Claims (2)
1, a kind of on-line direct current power supply panel, but it comprises the voltage regulating rectifier power supply, the dc energy storage compensation arrangement, D.C. contactor (CZ) and direct current feed out each loop, but the positive output end of voltage regulating rectifier power supply is connected with the positive input terminal of dc energy storage compensation arrangement through a contact of combined electrical switch, negative output terminal (M) is connected with the direct current negative busbar through another contact of unit switch, the dc energy storage compensation arrangement just, negative output terminal respectively with direct current positive bus (+M) (M) be connected with the direct current negative busbar, direct current feed out each loop be connected direct current positive bus (+M) and the direct current negative busbar (M), it is characterized in that: said dc energy storage compensation arrangement is that direct current amplifies the capacitance energy storage compensation arrangement, the used energy-storage travelling wave tube of this circuit is the ultracapacitor that capacitance is not less than 0.8 farad of withstand voltage 200V of being not less than, this on-line direct current power supply panel also is being provided with automatic time delay switching DC power supply controller and system power supply voltage sampling apparatus, and the system power supply voltage sampling apparatus is connected with the input of automatic time delay switching DC power supply controller; The system power supply voltage sampling apparatus is made up of two single-phase potential transformers (TV) of step-down and first voltage-selected switch (KV1) and the first alternating voltage relay (1YJ) and the second alternating voltage relay (2YJ), and the hot-wire coil of the first alternating voltage relay (1YJ) and the second alternating voltage relay (2YJ) is connected to the low-voltage output of two single-phase potential transformers (TV); Automatic time delay switching DC power supply controller is by very first time relay (SJ1), second time relay (SJ2), auxiliary relay (ZJ), the delay control circuit that capacitor power control switch (3K) is formed, second time relay (SJ2) is the time delay relay of configuration delay capacitor (C3), delay time is not less than 18 seconds, this control circuit has positive terminals and negative terminals, the positive binding post of capacitor power of positive terminals and direct current amplification capacitance energy storage compensation arrangement (+CM) be connected, (CM) be connected, the normally opened contact of the first alternating voltage relay (1YJ) and the second alternating voltage relay (2YJ) and very first time relay (SJ1) hot-wire coil are connected between negative terminals and the positive terminals negative terminals with the negative binding post of capacitor power.
2, on-line direct current power supply panel according to claim 1, it is characterized in that: said direct current amplifies the capacitance energy storage compensation arrangement to be made up of a minimum super energy storage capacitor and auxiliary electrical device, and the auxiliary electrical device has DC voltage relay (YJ), discharge diode (VD6), discharge iodine-tungsten lamp (R), discharges and recharges change over switch (K
CF), capacitor power change over switch (3HK), the positive binding post of capacitor power (+CM) bear binding post (CM) with capacitor power, the positive pole of super energy storage capacitor be connected the positive binding post of capacitor power (+CM), negative pole is connected the negative binding post of capacitor power (CM), one end of the positive pole of discharge diode (VD6) and iodine-tungsten lamp (R) all be connected the positive binding post of capacitor power (+CM), the other end of iodine-tungsten lamp (R) is connected and discharges and recharges change over switch (K
CF) the 3rd and the 4th contact, what the negative pole of discharge diode (VD6) was connected to D.C. contactor (CZ) often opens the cathode output end of main contacts as this circuit, through capacitor power change over switch (3HK) be connected to direct current positive bus (+M), discharge and recharge change over switch (K
CF) the 1st contact and the 5th contact, through capacitor power change over switch (3HK), charge power supply selector switch (K
CX) being transferred to the positive wiring point of DC power supply unit switch (2HK), the capacitor power of this circuit is born binding post (CM) through the negative binding post of dc fuse (13RD) and charging (X) and discharge and recharge change over switch (K
CF) the 8th contact connect, capacitor power bear binding post and (CM) is connect the fixed contact of capacitor power change over switch (3HK) simultaneously as the negative output terminal of direct current amplification capacitance energy storage compensation arrangement, receive the direct current negative busbar (M) through this change over switch; Discharge and recharge change over switch (K
CF) the 2nd contact, the 6th contact, the 7th contact link together with the positive binding post that charges (+X) be connected; In the automatic time delay switching DC power supply controller, the normally opened contact of the first alternating voltage relay (1YJ) and the second alternating voltage relay (2YJ) and very first time relay (SJ1) hot-wire coil are connected between negative terminals and the positive terminals, the two ends of second time relay (SJ2) hot-wire coil and the hot-wire coil of auxiliary relay (ZJ) is connected in parallel again and the normally-closed contact of very first time relay (SJ1) is cascaded is connected on negative terminals with just between the terminals, capacitor power control switch (3K), the normally opened contact of second time relay (SJ2), auxiliary relay (ZJ) a pair of often leave/and normally-closed contact and D.C. contactor (CZ) hot-wire coil be cascaded successively, is connected on positive terminals and negative terminals (M); In the system power supply voltage sampling apparatus, two single-phase potential transformers (TV) are connected into V-type, two outputs of four outputs of outlet side link together and ground connection, the hot-wire coil of the first alternating voltage relay (1YJ) and the second alternating voltage relay (2YJ) has four terminals, two terminals are connected together and are connected with the line of the ground connection of single-phase potential transformer TV output, and two terminals are connected with two other output of single-phase potential transformer (TV) respectively in addition; An output of single-phase potential transformer (TV) is connected with the 1st contact of the first line voltage-selected switch (KV1), the output that is connected with ground is connected with the 8th contact of this switch, another output is connected with the 6th contact with the 3rd contact of this switch, the the 2nd, two the 4th contact of the first line voltage-selected switch (KV1) links together, and the 7th and two the 5th contact links together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031387985A CN1305201C (en) | 2003-07-03 | 2003-07-03 | Passive capacity on line direct current power supply screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031387985A CN1305201C (en) | 2003-07-03 | 2003-07-03 | Passive capacity on line direct current power supply screen |
Publications (2)
| Publication Number | Publication Date |
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| CN1479428A CN1479428A (en) | 2004-03-03 |
| CN1305201C true CN1305201C (en) | 2007-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031387985A Expired - Fee Related CN1305201C (en) | 2003-07-03 | 2003-07-03 | Passive capacity on line direct current power supply screen |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008124510A1 (en) * | 2007-04-04 | 2008-10-16 | Cooper Technologies Company | System and method for boosting battery output |
| CN101902035A (en) * | 2010-06-29 | 2010-12-01 | 河南省电力公司许昌供电公司 | Direct current voltage compensation device for power distribution |
| CN108390444A (en) * | 2018-05-11 | 2018-08-10 | 江苏盐开电气有限公司 | Automatic discharge device and its control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2157618Y (en) * | 1993-04-01 | 1994-02-23 | 于清开 | Automatic charged cadmium-nickel cell dc power screen |
| CN2283943Y (en) * | 1996-08-29 | 1998-06-10 | 于午铭 | Uninterruption AC, DC power-supply screen for small substation electric power plant |
| JP2000287384A (en) * | 1999-03-29 | 2000-10-13 | Hochiki Corp | Power device for disaster-preventive monitor control panel |
| CN1362769A (en) * | 2000-12-30 | 2002-08-07 | 龙奎 | Capacitor energy-storing power supply |
-
2003
- 2003-07-03 CN CNB031387985A patent/CN1305201C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2157618Y (en) * | 1993-04-01 | 1994-02-23 | 于清开 | Automatic charged cadmium-nickel cell dc power screen |
| CN2283943Y (en) * | 1996-08-29 | 1998-06-10 | 于午铭 | Uninterruption AC, DC power-supply screen for small substation electric power plant |
| JP2000287384A (en) * | 1999-03-29 | 2000-10-13 | Hochiki Corp | Power device for disaster-preventive monitor control panel |
| CN1362769A (en) * | 2000-12-30 | 2002-08-07 | 龙奎 | Capacitor energy-storing power supply |
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