CN211348475U - Comprehensive test platform for active filter - Google Patents
Comprehensive test platform for active filter Download PDFInfo
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- CN211348475U CN211348475U CN201922135767.6U CN201922135767U CN211348475U CN 211348475 U CN211348475 U CN 211348475U CN 201922135767 U CN201922135767 U CN 201922135767U CN 211348475 U CN211348475 U CN 211348475U
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Abstract
The utility model discloses a comprehensive test platform for an active filter, which is characterized in that after equipment is connected, harmonic and reactive tests are required, only an outgoing line switch on a main structure is required to be disconnected, and a plug-in harmonic and reactive component is connected with the main structure of the equipment; when reactive and unbalanced tests are required, the plug-in harmonic and reactive component outgoing line switch is disconnected, and the RLC load component is connected; the plug-in type RLC load assembly, the plug-in type harmonic wave and reactive assembly are connected into the main equipment in series, the equipment to be tested is connected to an aging interface on the external interface module, and the equipment is sampled by using network side mutual inductors CT1, CT2 and CT 3. The aging test, the reactive power and harmonic test and the unbalanced test of a plurality of devices can be completed under the condition of one-time wiring, the test points of the devices are reduced, the main function test of the devices is solved in a one-stop mode, and the influence of external force on the device test is obviously reduced.
Description
Technical Field
The utility model relates to an active filter technical field especially relates to an active filter's comprehensive test platform for active filter.
Background
According to the overall arrangement of a strong smart power grid built by a national power grid company, the improvement of the power quality is a key subject all the time, along with the development of power electronic technology, a large number of nonlinear power devices (a high-power silicon controlled rectifier, a frequency converter, a UPS, a switching power supply and the like) are widely applied, so that a large number of harmonic currents are generated, and in order to improve the power quality and reduce harmonic damage, a high-power active power filter is gradually paid attention and is gradually accepted by the market. The yield of active power filters has also increased year by year.
The requirement on production efficiency is also required to be gradually improved, and in the traditional production mode, equipment needs to be subjected to aging test, reactive power and harmonic test, unbalance test and the like after the whole machine is assembled. The test categories are many, the test flow is complicated, and the functions of the test platforms are inconsistent, so that the equipment must be switched among different platforms in the test process, the production efficiency is greatly reduced, meanwhile, a large amount of time is consumed in the aging test process, and inevitably, certain damage can be caused to the equipment which is not completely packaged when the factory test is carried out.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a comprehensive test platform for active power filter aims at solving current active power filter test and needs directly switch at many platforms, the problem of wiring repeatedly.
In order to achieve the above object, the utility model provides a following technical scheme: a comprehensive test platform for an active filter comprises a main structure, a plug-in harmonic and reactive component and a plug-in RLC load component; the main structure includes:
the aging test module is used for carrying out aging tests on 6 pieces of equipment at the same time, and comprises an alternating current bus, a network side CT1, a CT2, a CT3, a load side CTA1, a CTA2, a CTB1, a CTB2, a CTC1 and a CTC2, an incoming line switch, an incoming line contactor, an outgoing line contactor and a plug-in terminal female head, wherein the plug-in terminal female head is used for connecting a plug-in RLC load component or a harmonic and reactive component, and the network side CT1, the CT2, the CT3, the load side CTA1, the CTA2, the CTB1, the CTB2, the CTC1 and the CTC2 secondary side are connected with an external interface module;
the isolation power supply module is used for supplying power to the inside of the test device and an external test instrument, consists of an isolation transformer and an AC/DC module, and connects an external power supply interface to the external interface module;
the monitoring module consists of a main control module, a communication module, an acquisition module, an action module and a human-computer interaction module, wherein the main control module is connected with the communication module, the acquisition module, the action module and the human-computer interaction module;
the external interface module comprises a sampling interface, an equipment terminal interface, an external power supply interface and a man-machine display interface; forming 3 sets of external interfaces on the external interface module, wherein each set of interfaces comprises two sets of power interfaces, two sets of load side CT interfaces corresponding to the power interfaces, one set of network side CT interfaces and two sets of control signal interfaces corresponding to the power interfaces;
the plug-in type harmonic and reactive component consists of an enhanced active filter, a plug-in terminal female head, a plug-in terminal male head and a plug-out switch, wherein the plug-in terminal male head, the plug-out switch and the plug-in terminal female head are sequentially connected, and the enhanced active filter is connected in parallel between the plug-in terminal male head and the plug-out switch; the pluggable terminal male head of the pluggable harmonic and reactive component is used for being connected with a pluggable terminal female head on the equipment main structure, and the pluggable terminal female head of the pluggable harmonic and reactive component is used for being connected with subsequent equipment;
the pluggable RLC load assembly consists of a resistance module, a reactance module, a capacitance module, a pluggable terminal male head, a pluggable terminal female head and an outgoing line switch; but the public head of plug terminal, the switch of being qualified for the next round of competitions, but the female head of plug terminal connects gradually, but a set of resistance module, a set of reactance module, a set of electric capacity module are passed through parallelly connected mode and are inserted between plug terminal and the switch of being qualified for the next round of competitions, but the public head of plug terminal of plug formula RLC load subassembly is used for connecting with the female head of plug terminal on the equipment main structure, but the female head of plug terminal of plug formula RLC load subassembly is used for subsequent equipment to connect.
Furthermore, the enhancement type active filter is an active filter meeting the bus capacity, has the output capacity of 3-50 harmonics, and is equipment without harmonic current limiting under rated capacity, so that the harmonic value of the output side is ensured to be larger than that of the equipment to be tested, and a harmonic environment is provided for the equipment to be tested.
Further, the single-phase impedance that the resistance module adopted through the single-phase access condition of control, generates the unbalanced three-phase current, provides the unbalanced three-phase environment for the test, and reactance module and capacitor module carry out the capacity promotion when plug-in harmonic and reactive component's capacity is not enough.
Preferably, the resistance module comprises a single-phase switch and a single-phase impedance, the reactance module comprises a three-phase switch and a three-phase reactor, and the capacitance module comprises a single-phase switch and a single-phase alternating current capacitor.
The utility model has the advantages that: the built comprehensive test platform can complete the aging test, reactive and harmonic test and unbalanced test of a plurality of devices under the condition of one-time wiring, reduces the test points of the devices, achieves the main function test of one-stop solving devices, and obviously reduces the influence of external force on the device test; the plug-in terminal female head of platform can match other equipment fixing with the public head of specification, accomplishes the equipment function and expands, is favorable to later stage demand change.
Above-mentioned active filter integrated test platform is under the condition that does not use plug-in RLC load cabinet subassembly and plug-in harmonic and reactive component, possess the function from aging test, running state through communication module automatic monitoring equipment, and through net side sampling mutual-inductor monitoring carry equipment operational aspect, the action module of connection can in time protect the emergence of resonance situation, guarantee equipment under test safety, 3 group's interfaces of reservation can carry out the aging tests of 6 equipment simultaneously, need not personnel to watch among the aging process, equipment automatic monitoring running state, break down in time the power supply and report an emergency and ask for help or increased vigilance, the use of personnel among the aging test process has been reduced, economy and economy.
Drawings
Fig. 1 is a main device diagram formed by an aging test module, an isolation power supply module, a monitoring module and an external interface module.
Fig. 2 is a schematic diagram of a plug-in RLC load assembly.
FIG. 3 is a schematic diagram of harmonic and reactive components.
FIG. 4 is a diagram of a main loop of a burn-in test module.
Detailed Description
As shown in figures 1, 2, 3 and 4,
the aging test module is connected to the external interface module, and when aging test is carried out, the power interface and the load CT interface of 6 devices are connected to the external interface module, the incoming line contactor is closed, 1 device to be tested is set for fixed reactive output as a load in each group of 3 groups, and the other device is compensated through the reactive power of the load side mutual inductor sampling load, so that 6 devices can be aged simultaneously.
In the aging process, the monitoring module collects currents of CT1, CT2 and CT3 through the collection module, network side currents of each group are monitored in real time, the monitoring module reads working data of the module through a control signal interface on the external interface module, and once equipment serving as compensation is shut down, resonates, breaks down and the like, the action module is controlled to disconnect the incoming line contactor. According to modules with different types and capacities, the overcurrent protection threshold value can be set by the equipment through the man-machine interaction module according to different network side currents in the working process. The monitoring module reads the working data of the module through a control signal interface on the external interface module and stores the working data, capacity reduction data of equipment in the aging process are provided, the aging duration can be set on the man-machine panel by personnel, after the set time is reached, the monitoring module enables the tested module to stop working through the control signal interface, and finally the incoming line contactor is disconnected. The isolation power supply module consists of an isolation transformer and an AC/DC module, is used for supplying power to equipment such as an oscilloscope, a computer and the like, and simultaneously plays a certain role in protecting instrument equipment through the isolation transformer.
After the equipment is connected, harmonic and reactive tests are required, and only the outgoing line switch on the main structure is required to be disconnected, and the plug-in harmonic and reactive component is connected to the main structure of the equipment; when reactive and unbalanced tests are required, the plug-in harmonic and reactive component outgoing line switch is disconnected, and the RLC load component is connected; the plug-in type RLC load assembly, the plug-in type harmonic wave and reactive assembly are connected into the main equipment in series, the equipment to be tested is connected to an aging interface on the external interface module, and the equipment is sampled by using network side mutual inductors CT1, CT2 and CT 3.
The pluggable terminal male head of the pluggable Rlc load assembly is used for electrically connecting the pluggable RLC load assembly with main equipment or a pluggable harmonic reactive-only assembly, and the pluggable terminal female head and the outlet switch are used for connecting the female heads with the same interface;
the functions of the pluggable terminal female head, the pluggable terminal male head and the outgoing line switch of the pluggable harmonic and reactive component are consistent with those of the pluggable RLC load cabinet, and the expansion of equipment is realized.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (4)
1. A comprehensive test platform for an active filter is characterized by comprising a main structure, a plug-in harmonic and reactive component and a plug-in RLC load component; the main structure includes:
the aging test module is used for carrying out aging tests on 6 pieces of equipment at the same time, and comprises an alternating current bus, a network side CT1, a CT2, a CT3, a load side CTA1, a CTA2, a CTB1, a CTB2, a CTC1 and a CTC2, an incoming line switch, an incoming line contactor, an outgoing line contactor and a plug-in terminal female head, wherein the plug-in terminal female head is used for connecting a plug-in RLC load component or a harmonic and reactive component, and the network side CT1, the CT2, the CT3, the load side CTA1, the CTA2, the CTB1, the CTB2, the CTC1 and the CTC2 secondary side are connected with an external interface module;
the isolation power supply module is used for supplying power to the inside of the test device and an external test instrument, consists of an isolation transformer and an AC/DC module, and connects an external power supply interface to the external interface module;
the monitoring module consists of a main control module, a communication module, an acquisition module, an action module and a human-computer interaction module, wherein the main control module is connected with the communication module, the acquisition module, the action module and the human-computer interaction module;
the external interface module comprises a sampling interface, an equipment terminal interface, an external power supply interface and a man-machine display interface; forming 3 sets of external interfaces on the external interface module, wherein each set of interfaces comprises two sets of power interfaces, two sets of load side CT interfaces corresponding to the power interfaces, one set of network side CT interfaces and two sets of control signal interfaces corresponding to the power interfaces;
the plug-in type harmonic and reactive component consists of an enhanced active filter, a plug-in terminal female head, a plug-in terminal male head and a plug-out switch, wherein the plug-in terminal male head, the plug-out switch and the plug-in terminal female head are sequentially connected, and the enhanced active filter is connected in parallel between the plug-in terminal male head and the plug-out switch; the pluggable terminal male head of the pluggable harmonic and reactive component is used for being connected with a pluggable terminal female head on the equipment main structure, and the pluggable terminal female head of the pluggable harmonic and reactive component is used for being connected with subsequent equipment;
the pluggable RLC load assembly consists of a resistance module, a reactance module, a capacitance module, a pluggable terminal male head, a pluggable terminal female head and an outgoing line switch; but the public head of plug terminal, the switch of being qualified for the next round of competitions, but the female head of plug terminal connects gradually, but a set of resistance module, a set of reactance module, a set of electric capacity module are passed through parallelly connected mode and are inserted between plug terminal and the switch of being qualified for the next round of competitions, but the public head of plug terminal of plug formula RLC load subassembly is used for connecting with the female head of plug terminal on the equipment main structure, but the female head of plug terminal of plug formula RLC load subassembly is used for subsequent equipment to connect.
2. The integrated test platform for the active filter according to claim 1, wherein the enhanced active filter is an active filter meeting bus capacity, has output capability of 3-50 harmonics, and is a device without harmonic current limitation under rated capacity, so that a harmonic value on an output side is greater than that of a device to be tested, and a harmonic environment is provided for the device to be tested.
3. The integrated test platform for the active filter according to claim 1, wherein the resistance module uses a single-phase impedance to generate a three-phase unbalanced current by controlling a single-phase access condition, so as to provide a three-phase unbalanced environment for the test, and the reactance module and the capacitance module perform capacity boosting when the capacity of the plug-in harmonic and reactive component is insufficient.
4. A comprehensive test platform for an active filter according to claim 3, wherein the resistance module comprises a single-phase switch and a single-phase impedance, the reactance module comprises a three-phase switch and a three-phase reactor, and the capacitance module comprises a single-phase switch and a single-phase ac capacitor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922135767.6U CN211348475U (en) | 2019-12-03 | 2019-12-03 | Comprehensive test platform for active filter |
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| CN201922135767.6U CN211348475U (en) | 2019-12-03 | 2019-12-03 | Comprehensive test platform for active filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413572A (en) * | 2020-04-29 | 2020-07-14 | 许昌开普检测研究院股份有限公司 | Low-voltage active filter device test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413572A (en) * | 2020-04-29 | 2020-07-14 | 许昌开普检测研究院股份有限公司 | Low-voltage active filter device test system |
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