CN203385754U - Large-power medium-voltage direct-current load - Google Patents
Large-power medium-voltage direct-current load Download PDFInfo
- Publication number
- CN203385754U CN203385754U CN201320517008.6U CN201320517008U CN203385754U CN 203385754 U CN203385754 U CN 203385754U CN 201320517008 U CN201320517008 U CN 201320517008U CN 203385754 U CN203385754 U CN 203385754U
- Authority
- CN
- China
- Prior art keywords
- loop
- load
- power
- master controller
- resistive load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The utility model discloses a large-power medium-voltage direct-current load, comprising a load main loop, a power supply loop, a main controller, an intermediate control loop, a resistive load loop, and a measurement loop. The load main loop is connected with the resistive load loop. The power supply loop is connected with the resistive load loop, the intermediate control loop, and the main controller. The main controller is connected with the resistive load loop through the intermediate control loop. The resistive load loop is connected with the main controller through the measurement loop. The load can operate reliably for a long term under working voltage of DC4.0 kV and satisfy the requirements of a large-power medium-voltage direct-current generator set on the medium-voltage direct-current load.
Description
Technical field
The utility model relates to genset detection technique field, especially a kind of high-power middle straightening current load.
Background technology
Along with the development of modern science and technology, direct current is widely used in industrial every field, and high-power middle straightening stream generation technology has obtained very fast development.Therefore, the detection of how quality and secure context being carried out in Electricity Generation unit medium voltage DC source seems particularly important.
At present both at home and abroad the equipment of test genset performance is mainly water load, but water load is after energising, and the Joule heat of generation, can make the water temperature in water load raise, and cause the vaporization of water, causes the performance number of water load unstable, impact test effect.In use for some time, the pole plate of water load is understood electrolysis to water load, makes the capacity loss of water load.Simultaneously, the performance number of water load can accurately not predict, makes it can not meet interim loading, off-load test, and can not carry out certain performance number impact, prominently unload test.
Domestic water load all is suitable for the detection of small power generator group, and water load, due to the restriction of himself hardware design, can't meet the test request in Electricity Generation unit medium voltage DC source.
The utility model content
The utility model is for the deficiencies in the prior art, propose a kind of high-power middle straightening current load, can move under the condition of work of DC4.0kV, the adjusting of load accurately, conveniently, there is long-range control function, be well positioned to meet the requirement of Electricity Generation unit centering straightening current load.
In order to realize above-mentioned utility model purpose, the utility model provides following technical scheme: a kind of high-power middle straightening current load comprises load major loop, power supply loop, master controller, middle control loop, resistive load loop and measuring circuit; Described load major loop is connected with the resistive load loop, and described power supply loop is connected with master controller with described resistive load loop, middle control loop respectively; Described master controller is connected with described resistive load loop through described middle control loop; Described resistive load loop is connected with described master controller through described measuring circuit.
Further, described load major loop is comprised of DC circuit breaker and disconnector, and DC circuit breaker, resistive load loop and disconnector are connected in series successively.
Further, also comprise the remote computer be connected by Industrial Ethernet with described master controller.
Further, the rated power in described resistive load loop has 8 gears, rated power P
nbe followed successively by: 800kW, 800kW, 800kW, 800kW, 800kW, 400kW, 200kW, 100kW; On described 8 gears, the dry type resistor of load branch combines by some resistance wires, and the resistor power on each gear all can be at 0～P
nbetween carry out reconfiguring, setting of resistor power.
Compared with prior art, the utlity model has following advantage: load can move under the condition of work of DC4.0kV, the adjusting of load accurately, conveniently, has long-range control function, is well positioned to meet the requirement of Electricity Generation unit centering straightening current load.
The accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model;
Fig. 2 is one-piece construction figure of the present utility model;
Fig. 3 is the principle schematic in power supply loop;
Fig. 4 is the circuit theory sketch in resistive load loop;
Fig. 5 is the principle schematic of master controller;
Fig. 6 is the circuit theory sketch of middle control loop;
Fig. 7 is the principle schematic of middle straightening current load tankage expansion.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail, the description of this part is only exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
Straightening current load in a kind of Electricity Generation unit as shown in Figure 1, comprise load major loop, power supply loop, master controller, middle control loop, resistive load loop, remote computer and measuring circuit, described load major loop is connected with the resistive load loop, and described power supply loop is connected with master controller with described resistive load loop, middle control loop respectively; Described master controller is connected with described resistive load loop through described middle control loop; Described resistive load loop is connected with described master controller through described measuring circuit.
Wherein, described load major loop is comprised of DC circuit breaker and disconnector, and DC circuit breaker, resistive load loop and disconnector are connected in series successively.Remote computer is connected by Industrial Ethernet with described master controller.
In the Electricity Generation unit, the straightening current load is under the operating voltage of DC4.0kV, can be for a long time, operation reliably; The transformation of hardware, according to the rated power of genset, can be carried out comparatively easily in described resistive load loop to the rated power of load, meet the requirement of different genset to bearing power; Remote computer can be directly and master controller communicate, and voltage that can be measured according to described measuring circuit, current value, centering straightening current load case carries out power control; Described remote computer can pass through the expansion of network communication module (as industrial switch), straightening current load case in several is carried out to Long-distance Control simultaneously, can meet the requirement of more powerful genset centering straightening current load.
Straightening current load case in a kind of Electricity Generation unit as shown in Figure 2, mainly by the low voltage control chamber, in pressure-controlled chamber and middle piezoresistance chamber form.Indoor power supply loop, master controller and the middle control loop of mainly containing of low voltage control; Middle pressure-controlled chamber mainly contains DC fuse and D.C. contactor; Middle piezoresistance chamber mainly is comprised of 1#～8# dry type resistor and the cooling blower that is positioned at accordingly under the dry type resistor.T1～T8 is for detecting the temperature sensor of 1#～8# dry type resistor leaving air temp.
As shown in Figure 4, the resistive load loop is formed by DC fuse, D.C. contactor, direct current dry type resistor in series, and all constituents can long-term under the DC4.0kV operating voltage, operation reliably.The DC circuit breaker of load major loop and disconnector are for the electrical connection of straightening current load and DC generation unit.DC fuse is for the overcurrent protection of each load circuit, and D.C. contactor is for the power adjustments of each branch road of resistive load loop, and direct current resistor is used for the electric energy energy transform into heat energy of genset.
RT1～RT8, CM1～CM8, R1～R8 are respectively DC fuse, D.C. contactor and the dry type resistor of load circuit, and dry type resistor piezoresistance silk connection in series-parallel in some combines.It is indoor that RT1～RT8, CM1～CM8 are arranged in the pressure-controlled shown in Fig. 1, and it is indoor that R1～R8 is arranged in the piezoresistance shown in Fig. 2.
Resistive load circuit theory figure as shown in Figure 4 is known, and DC fuse, D.C. contactor, dry type resistor in series are formed to the resistive load loop, is followed successively by 1#～8# load circuit.The input terminal row the who again positive and negative electrode of 1#～8# load circuit is connected respectively to positive and negative electrode is upper, the positive and negative electrode inlet wire of straightening current load case in formation.
As shown in Figure 3, in described power supply loop, the output terminal of AC380V is connected to the power input of described cooling blower; In the power supply loop, the AC220V output terminal of UPS is connected to respectively the power input of master controller and middle control loop, realizes the uninterrupted power supply to master controller and middle control loop; The power input of D.C. contactor in the described resistive load of the output termination loop of DC110V rectification module in the power supply loop.
As shown in Fig. 5,6 and 7, described master controller can directly communicate with described remote computer.All switching values of middle straightening current load case and analog quantity all are connected to the signal input part of master controller, and the control output end of master controller is connected with the corresponding auxiliary reclay of middle control loop.By signal input, the output of master controller, master controller completes the collection of data and the output function of Long-distance Control amount.
In Fig. 6, S1～S8 is the other switch knob of machine, and B1～B8 is the other opening button of machine; F1～F8 is the auxiliary reclay that Long-distance Control is closed a floodgate, the normally opened contact that F1-1～F8-1 is F1～F8; The auxiliary reclay that H1～H8 is the Long-distance Control separating brake, the normally opened contact that H1-1～H8-1 is H1～H8; The auxiliary reclay that K1～K8 is closing operation, the normally opened contact that K1-1～K8-1 and K1-2～K8-2 are K1～K8; The auxiliary reclay that KB1～KB8 is sub-switching operation, the normally closed contact that KB1-1～KB8-1 is KB1～KB8; The operating coil that CM1～CM8 is D.C. contactor; SA1 is by machine/long-range selector switch.It is indoor that above-mentioned device all is positioned at the low voltage control shown in Fig. 2.
Middle control loop schematic diagram as shown in Figure 6 is known, by machine/and long-range selector switch SA1 is in the end of incoming cables of middle control loop, the control mode of straightening current load case during SA1 selects.The mode of connection of the middle control loop of 1# load circuit is as follows: the end of S1, F1, K1-1 is received respectively the other end of machine, remote port, the AC220V end of SA1, after the other end of S1, F1, K1-1 short circuit in parallel, with K1, KB1-1, connect, the outlet after series connection is connected to the N end; K1-2 is with after CM1 connects, and the two ends of this series arm are connected to respectively positive and negative the two poles of the earth of DC110V.The middle control loop of 2#～8# load circuit and 1#'s is similar.
The positive and negative electrode inlet wire of described load box is connected with the positive and negative electrode output terminal of described genset by DC circuit breaker, the disconnector of load major loop respectively.
Dry type resistor in described resistive load loop is combined by some miniwatt resistance silk series and parallels, can, by the reconfiguring of resistance wire, realize resetting of resistive load loop rated power.
Described container adopts rectangular structure, and except remote computer, all devices of middle straightening current load case is installed in container.The sealing of container surrounding, cooling blower is arranged on the bottom of container, and the air channel of cooling blower adopts the mode of bottom in and top out to be forced cooling to the dry type resistor in resistive load loop.
Described remote computer can pass through the expansion of network communication module (as industrial switch), carry out network service with a plurality of master controllers simultaneously, the expansion of straightening current load capacity in realization, meet the more requirement of Electricity Generation unit centering straightening current load.
As shown in Figure 7, the master controller of 1#～N# DC load case is all communicated by letter with remote computer via network communication module, completes the Long-distance Control of remote computer to 1#～N# DC load case; , the positive terminal of 1#～N# DC load case is connected with the positive pole of genset simultaneously, the negative terminal of 1#～N# DC load case is connected with the negative pole of genset, thus the expansion of straightening current load capacity in realizing.
Characteristics of the present utility model are, can test the output load capacity of high-power middle straightening current generator group, and the operational factor of centering straightening current load case is carried out real-time demonstration, storage and analysis, and realizes the Long-distance Control of centering straightening current load case; Capacity that simultaneously can centering straightening current load is expanded, and meets the requirement of more high-power middle straightening current generator group centering straightening current load.
Workflow of the present utility model is as follows:
At first, enable the control mode of straightening current load case in the SA1 selection.When the other state of machine, realize the splitting or integrating lock of D.C. contactor by button S1～S8, B1～B8, complete the resistive load loop input the excision operation; When remote status, remote computer is controlled the output of master controller, realizes the splitting or integrating lock of D.C. contactor, complete the resistive load loop input the excision operation.
Secondly, start all cooling blowers, the resistive load loop is carried out compulsory air-cooled, the operation that in assurance, straightening current load case can be reliable, lasting under rated power.
Again, by remote computer, read in real time voltage, the current value of the middle straightening current load case that measuring circuit gathers, the power of load is carried out to real-time detection.And, according to the needs of genset, the control by remote computer to load box, complete the adjusting of bearing power.Simultaneously, all running statuses of straightening current load case in the real-time monitoring of master controller, and set warning function on remote computer, the safe and reliable operation of straightening current load case in assurance.
Finally, can, by the expanded function of the transformation in the resistive load loop, the dry type resistor carries out and network communication module, meet the requirement of various Electricity Generation unit centering straightening current loads.
Claims (4)
1. a high-power middle straightening current load, is characterized in that: comprise load major loop, power supply loop, master controller, middle control loop, resistive load loop and measuring circuit; Described load major loop is connected with the resistive load loop, and described power supply loop is connected with master controller with described resistive load loop, middle control loop respectively; Described master controller is connected with described resistive load loop through described middle control loop; Described resistive load loop is connected with described master controller through described measuring circuit.
2. high-power middle straightening current load as claimed in claim 1, it is characterized in that: described load major loop is comprised of DC circuit breaker and disconnector, and DC circuit breaker, resistive load loop and disconnector are connected in series successively.
3. high-power middle straightening current load as claimed in claim 1, is characterized in that: also comprise the remote computer be connected by Industrial Ethernet with described master controller.
4. high-power middle straightening current load as claimed in claim 1, it is characterized in that: the rated power in described resistive load loop has 8 gears, rated power P
nbe followed successively by: 800kW, 800kW, 800kW, 800kW, 800kW, 400kW, 200kW, 100kW; On described 8 gears, the dry type resistor of load branch combines by some resistance wires, and the resistor power on each gear all can be at 0～P
nbetween carry out reconfiguring, setting of resistor power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517008.6U CN203385754U (en) | 2013-08-23 | 2013-08-23 | Large-power medium-voltage direct-current load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517008.6U CN203385754U (en) | 2013-08-23 | 2013-08-23 | Large-power medium-voltage direct-current load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203385754U true CN203385754U (en) | 2014-01-08 |
Family
ID=49874230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320517008.6U Expired - Lifetime CN203385754U (en) | 2013-08-23 | 2013-08-23 | Large-power medium-voltage direct-current load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203385754U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199093A (en) * | 2016-09-26 | 2016-12-07 | 华侨大学 | A kind of Large Copacity tunable load device |
| CN109164338A (en) * | 2018-07-20 | 2019-01-08 | 中国船舶重工集团公司第七O三研究所无锡分部 | A kind of high-power middle straightening with on-line monitoring function drains off formula load device |
| CN110187155A (en) * | 2019-06-27 | 2019-08-30 | 中国船舶电站设备有限公司 | Formula load device is pressed dry in a kind of direct current |
-
2013
- 2013-08-23 CN CN201320517008.6U patent/CN203385754U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199093A (en) * | 2016-09-26 | 2016-12-07 | 华侨大学 | A kind of Large Copacity tunable load device |
| CN106199093B (en) * | 2016-09-26 | 2022-12-06 | 华侨大学 | Large-capacity adjustable load device |
| CN109164338A (en) * | 2018-07-20 | 2019-01-08 | 中国船舶重工集团公司第七O三研究所无锡分部 | A kind of high-power middle straightening with on-line monitoring function drains off formula load device |
| CN109164338B (en) * | 2018-07-20 | 2021-04-16 | 中国船舶重工集团公司第七O三研究所无锡分部 | High-power medium-voltage direct-current dry-type load device with online monitoring function |
| CN110187155A (en) * | 2019-06-27 | 2019-08-30 | 中国船舶电站设备有限公司 | Formula load device is pressed dry in a kind of direct current |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103227491B (en) | For the data acquisition of electric vehicle lithium battery group and energy balance control device and method | |
| CN103412259B (en) | A kind of direct-current circuit breaker on-off characteristic test device | |
| CN203243049U (en) | Reactive power compensation energy-saving device | |
| CN107271899B (en) | A kind of test method of more specification voltage generating sets | |
| CN103424692A (en) | Direct-current circuit breaker on-off characteristic test method | |
| CN203385754U (en) | Large-power medium-voltage direct-current load | |
| CN110632349A (en) | Intelligent program-controlled testing device and testing method for direct-current charging pile | |
| CN203054118U (en) | Short-circuit protection test apparatus for IGBT power unit | |
| CN202488148U (en) | Low voltage intelligent reactive power compensation device | |
| CN202976623U (en) | Simulation demonstration device used for training remote electrical load control | |
| CN205104912U (en) | Novel lossless balanced load of centralized three -phase device | |
| CN207265666U (en) | The box-like power capacitor of multiloop mixed compensation type smart group | |
| CN214958867U (en) | Uninterrupted online switching lithium battery energy storage system | |
| CN106383278B (en) | Reconfigurable direct-current power grid simulation test system | |
| CN214953952U (en) | Capacitor power-taking switch with fault diagnosis function | |
| CN200990575Y (en) | Elevator frequency changer external hanging energy feedback device | |
| CN208738853U (en) | A kind of tandem type is multi-functional from grid-connected energy-storage system | |
| CN102842911A (en) | Mine-used dynamic reactive power compensation device | |
| CN204462342U (en) | Battery performance test conversion equipment | |
| CN202586358U (en) | Improved intelligent low-voltage reactive power compensation cabinet | |
| CN202840521U (en) | Microcomputer line protection system with load control | |
| CN102969754B (en) | Storage battery pack connection circuit and intelligent storage battery pack | |
| CN205543934U (en) | Intelligence low voltage switchgear based on PLC control | |
| CN202856370U (en) | Three-unit cylinder type intelligent capacitor | |
| CN216794857U (en) | Equivalent current-variable power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150922 Address after: 150000 No. 35, Honghu Road, Yingbin Road, Harbin hi tech Development Zone, Heilongjiang, China Patentee after: HARBIN GUANGHAN POWER TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 214000 Jiangsu province Binhu District of Wuxi City Helu Zhen Qin New Branch Road No. 19 Patentee before: WUXI BRANCH, NO.703 RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |