CN216956192U - Wind power full power converter double-branch low-energy-consumption temperature control type test platform - Google Patents
Wind power full power converter double-branch low-energy-consumption temperature control type test platform Download PDFInfo
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- CN216956192U CN216956192U CN202122506659.2U CN202122506659U CN216956192U CN 216956192 U CN216956192 U CN 216956192U CN 202122506659 U CN202122506659 U CN 202122506659U CN 216956192 U CN216956192 U CN 216956192U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a double-branch low-energy-consumption temperature control type test platform for a wind power full-power converter, which relates to the technical field of converter detection and comprises the following steps: the system comprises a pre-charging circuit, a middle and small megawatt unit testing branch circuit and a large megawatt unit testing branch circuit; the pre-charging circuit comprises a first breaker, a first contactor, a pre-charging transformer and a first isolation transformer; the large megawatt unit testing branch comprises a third isolation transformer, a fifth circuit breaker, a third contactor, a third pre-charging transformer, a sixth circuit breaker, a seventh circuit breaker and a second machine side autotransformer. According to the utility model, corresponding test work can be carried out according to different environmental temperatures and water inlet temperatures, and the problem of test result deviation caused by the fact that the actual working conditions cannot be reached in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of current transformer monitoring, in particular to a double-branch low-energy-consumption temperature control type test platform for a wind power full-power current transformer.
Background
In the prior art, partial tests of the super-capacity converter use rated current running under non-rated voltage, namely lower voltage, the method can only roughly reach the performance under some test working conditions, and the risk that partial problems cannot be found in the prototype test of the converter is caused. Therefore, the double-loop circuit meets the test requirements of the converters with different voltage grades and different capacities.
In the existing scheme, temperature rise is usually only calculated during large-current testing, and for high ring temperature and high water temperature possibly encountered in practical application, if the problem that the heat emitted from the outer surface of the cabinet body and the heat productivity of the same device are different at different water temperatures is directly converted, the test result is seriously inconsistent with the fact, so that a platform capable of stably controlling the operation environment temperature and the water inlet temperature of the converter is required.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model aims to provide a dual-branch low-energy-consumption temperature control type test platform for a wind power full-power converter, which can perform corresponding test work according to different environmental temperatures and water inlet temperatures, and solves the problem of test result deviation caused by the fact that the actual working conditions cannot be achieved in the prior art.
The utility model provides a double-branch low-energy-consumption temperature control type test platform for a wind power full-power converter, which comprises:
the system comprises a pre-charging circuit, a middle and small megawatt unit testing branch and a large megawatt unit testing branch;
the pre-charging circuit comprises a first breaker, a first contactor, a pre-charging transformer and a first isolation transformer;
one end of the first circuit breaker is connected with an external power supply, and the other end of the first circuit breaker is connected with one end of the first isolation transformer;
one end of the first contactor is connected with one end of the pre-charging transformer, and the other end of the pre-charging transformer is connected with one end of the first isolation transformer;
the other end of the first isolation transformer is connected with a test branch of the medium-small megawatt unit;
the test branch of the medium and small megawatt unit comprises a second isolation transformer, a second circuit breaker, a second contactor, a second pre-charging transformer, a third circuit breaker and a first machine side autotransformer;
one end of the second isolation transformer is connected with the other end of the first isolation transformer through the second circuit breaker;
the other end of the second isolation transformer is connected with one end of a third circuit breaker, and the other end of the third circuit breaker is connected with a to-be-tested converter through the first machine side autotransformer after passing through a filter circuit;
one end of the second contactor is connected with the third circuit breaker, and the other end of the third circuit breaker is connected with one end of the second pre-charging transformer;
the fourth circuit breaker is connected in series between the first isolation transformer and the grid-side autotransformer, and the transformer is connected with the grid side of the converter to be tested;
the large megawatt unit testing branch comprises a third isolation transformer, a fifth circuit breaker, a third contactor, a third pre-charging transformer, a sixth circuit breaker, a seventh circuit breaker and a second machine side autotransformer;
the seventh circuit breaker is connected between the network side of the converter to be tested and one end of the fifth circuit breaker in series, the other end of the fifth circuit breaker is connected with one end of the third pre-charging transformer, the other end of the third pre-charging transformer is connected with one end of the sixth circuit breaker, and the other end of the sixth circuit breaker is connected with the side of the converter to be tested through a filter circuit;
the sixth breaker is connected with the third breaker through the third contactor.
Preferably, the device also comprises water cooling equipment, and a water inlet pipe and a water outlet pipe of the water cooling equipment are both connected with the converter to be tested.
Preferably, the converter to be tested is located in a heat preservation room, and the heat preservation room is used for simulating the change of an external environment.
The embodiment of the utility model has the following beneficial effects: the utility model provides a double-branch low-energy-consumption temperature control type test platform for a wind power full-power converter, which comprises: the system comprises a pre-charging circuit, a middle and small megawatt unit testing branch circuit and a large megawatt unit testing branch circuit; the pre-charging circuit comprises a first breaker, a first contactor, a pre-charging transformer and a first isolation transformer; one end of the first circuit breaker is connected with an external power supply, and the other end of the first circuit breaker is connected with one end of the first isolation transformer; one end of the first contactor is connected with one end of a pre-charging transformer, and the other end of the pre-charging transformer is connected with one end of a first isolation transformer; the other end of the first isolation transformer is connected with a test branch of the medium-small megawatt unit; the test branch of the medium and small megawatt unit comprises a second isolation transformer, a second circuit breaker, a second contactor, a second pre-charging transformer, a third circuit breaker and a first machine side autotransformer; one end of the second isolation transformer is connected with the other end of the first isolation transformer through a second circuit breaker; the other end of the second isolation transformer is connected with one end of a third circuit breaker, and the other end of the third circuit breaker is connected with the to-be-tested converter through the first machine side autotransformer after passing through the filter circuit; one end of the second contactor is connected with a third circuit breaker, and the other end of the third circuit breaker is connected with one end of a second pre-charging transformer; the fourth circuit breaker is connected in series between the first isolation transformer and the grid-side autotransformer, and the transformer is connected with the grid side of the converter to be tested; the large megawatt unit testing branch comprises a third isolation transformer, a fifth circuit breaker, a third contactor, a third pre-charging transformer, a sixth circuit breaker, a seventh circuit breaker and a second machine side autotransformer; the seventh circuit breaker is connected in series between the network side of the converter to be tested and one end of the fifth circuit breaker, the other end of the fifth circuit breaker is connected with one end of a third pre-charging transformer, the other end of the third pre-charging transformer is connected with one end of a sixth circuit breaker, and the other end of the sixth circuit breaker is connected with the side of the converter to be tested through a filter circuit; the sixth circuit breaker is connected with the third circuit breaker through the third contactor. According to the utility model, corresponding test work can be carried out according to different environmental temperatures and water inlet temperatures, and the problem of test result deviation caused by the fact that the actual working conditions cannot be reached in the prior art is solved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a structural diagram of a dual-branch low-energy-consumption temperature-control type test platform of a wind power full-power converter according to an embodiment of the utility model.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
At present, partial tests of the super-capacity converter run by using rated current under non-rated voltage, namely lower voltage, the method can only roughly reach the performance under some test working conditions, and the prototype test of the converter has the risk that partial problems cannot be found.
In order to facilitate understanding of the embodiment, a double-branch low-energy-consumption temperature-control type test platform for a wind power full-power converter disclosed by the embodiment of the utility model is firstly described in detail.
The utility model provides a double-branch low-energy-consumption temperature-control type test platform for a wind power full-power converter, which comprises:
the system comprises a pre-charging circuit, a middle and small megawatt unit testing branch circuit and a large megawatt unit testing branch circuit;
the pre-charging circuit comprises a first breaker, a first contactor, a pre-charging transformer and a first isolation transformer;
one end of the first circuit breaker is connected with an external power supply, and the other end of the first circuit breaker is connected with one end of the first isolation transformer;
one end of the first contactor is connected with one end of the pre-charging transformer, and the other end of the pre-charging transformer is connected with one end of the first isolation transformer;
the other end of the first isolation transformer is connected with a test branch of the medium-small megawatt unit;
the test branch of the medium and small megawatt unit comprises a second isolation transformer, a second circuit breaker, a second contactor, a second pre-charging transformer, a third circuit breaker and a first machine side autotransformer;
one end of the second isolation transformer is connected with the other end of the first isolation transformer through the second circuit breaker;
the other end of the second isolation transformer is connected with one end of a third circuit breaker, and the other end of the third circuit breaker is connected with a to-be-tested converter through the first machine side autotransformer after passing through a filter circuit;
one end of the second contactor is connected with the third circuit breaker, and the other end of the third circuit breaker is connected with one end of the second pre-charging transformer;
the fourth circuit breaker is connected in series between the first isolation transformer and the grid-side autotransformer, and the transformer is connected with the grid side of the converter to be tested;
the large megawatt unit testing branch comprises a third isolation transformer, a fifth circuit breaker, a third contactor, a third pre-charging transformer, a sixth circuit breaker, a seventh circuit breaker and a second machine side autotransformer;
the seventh circuit breaker is connected between the network side of the converter to be tested and one end of the fifth circuit breaker in series, the other end of the fifth circuit breaker is connected with one end of the third pre-charging transformer, the other end of the third pre-charging transformer is connected with one end of the sixth circuit breaker, and the other end of the sixth circuit breaker is connected with the side of the converter to be tested through a filter circuit;
the sixth circuit breaker is connected with the third circuit breaker through the third contactor.
Preferably, the device also comprises water cooling equipment, and a water inlet pipe and a water outlet pipe of the water cooling equipment are both connected with the converter to be tested.
Preferably, the converter to be tested is located in a heat preservation room, and the heat preservation room is used for simulating the change of an external environment.
Example two:
the working flows of the first embodiment of the utility model are explained as follows:
when the medium and small megawatt unit is tested, only a test branch of the medium and small megawatt unit is needed, the specific steps are as follows, a first contactor KM1 is closed to precharge an isolation transformer outside a loop, a second breaker Q5/Q5 'is closed after 30s, the second isolation transformer is charged, a fourth breaker Q3/Q3' is closed after 30s to precharge a network side transformer, then a first breaker Q1 switch is closed, and a first contactor KM1 is disconnected. Then KM2 is closed to pre-charge the filter capacitor and transformer on machine side, and Q6/Q6' is closed after 30s, and KM2 is opened. At the moment, the water cooling equipment, the heaters in the heat preservation room and the cooling fan are controlled to control the environment temperature and the water inlet temperature, and then the relevant test of the converter can be carried out.
During testing of the large megawatt unit, the specific steps are as follows, the contactor KM1 is closed to pre-charge the isolation transformer outside the loop, the Q3/Q3 'is closed after 30s, the Q2/Q2' is charged for the network side transformer, the Q5/Q5 'is closed after 30s, the isolation transformer 1 is charged, the Q4/Q4' is closed after 30s, the isolation transformer 2 is charged, the Q1 switch is closed, and the KM1 is disconnected. Then, the KM2 is closed to pre-charge the filter capacitor and the transformer at the machine side of the branch 1, the KM3 is closed to pre-charge the filter capacitor and the transformer at the machine side of the branch 2 after 30s, the Q6/Q6 ', the Q7/Q7' and the KM2 and the KM3 are closed after 30s, and the whole power-on process is completed. At the moment, the water cooling equipment, the heaters in the heat preservation room and the cooling fan are controlled to control the environment temperature and the water inlet temperature, and then the relevant test of the converter can be carried out.
Unless specifically stated otherwise, the relative steps, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a wind-powered electricity generation full power converter double branch way low energy consumption accuse warm type test platform which characterized in that includes: the system comprises a pre-charging circuit, a middle and small megawatt unit testing branch circuit and a large megawatt unit testing branch circuit;
the pre-charging circuit comprises a first breaker, a first contactor, a pre-charging transformer and a first isolation transformer;
one end of the first circuit breaker is connected with an external power supply, and the other end of the first circuit breaker is connected with one end of the first isolation transformer;
one end of the first contactor is connected with one end of the pre-charging transformer, and the other end of the pre-charging transformer is connected with one end of the first isolation transformer;
the other end of the first isolation transformer is connected with a test branch of the medium-small megawatt unit;
the test branch of the medium and small megawatt unit comprises a second isolation transformer, a second circuit breaker, a second contactor, a second pre-charging transformer, a third circuit breaker and a first machine side autotransformer;
one end of the second isolation transformer is connected with the other end of the first isolation transformer through the second circuit breaker;
the other end of the second isolation transformer is connected with one end of a third circuit breaker, and the other end of the third circuit breaker is connected with a to-be-tested converter through the first machine side autotransformer after passing through a filter circuit;
one end of the second contactor is connected with the third circuit breaker, and the other end of the third circuit breaker is connected with one end of the second pre-charging transformer;
the fourth circuit breaker is connected in series between the first isolation transformer and the grid-side autotransformer, and the transformer is connected with the grid side of the converter to be tested;
the large megawatt unit testing branch comprises a third isolation transformer, a fifth circuit breaker, a third contactor, a third pre-charging transformer, a sixth circuit breaker, a seventh circuit breaker and a second machine side autotransformer;
the seventh circuit breaker is connected between the network side of the converter to be tested and one end of the fifth circuit breaker in series, the other end of the fifth circuit breaker is connected with one end of the third pre-charging transformer, the other end of the third pre-charging transformer is connected with one end of the sixth circuit breaker, and the other end of the sixth circuit breaker is connected with the side of the converter to be tested through a filter circuit;
the sixth breaker is connected with the third breaker through the third contactor.
2. The double-branch low-energy-consumption temperature-control type test platform for the wind power full-power converter as claimed in claim 1, further comprising water cooling equipment, wherein a water inlet pipe and a water outlet pipe of the water cooling equipment are both connected with the converter to be tested.
3. The double-branch low-energy-consumption temperature-control type test platform for the wind power full-power converter according to claim 1, wherein the converter to be tested is located in a heat preservation room, and the heat preservation room is used for simulating changes of an external environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122506659.2U CN216956192U (en) | 2021-10-18 | 2021-10-18 | Wind power full power converter double-branch low-energy-consumption temperature control type test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122506659.2U CN216956192U (en) | 2021-10-18 | 2021-10-18 | Wind power full power converter double-branch low-energy-consumption temperature control type test platform |
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| Publication Number | Publication Date |
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| CN216956192U true CN216956192U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122506659.2U Active CN216956192U (en) | 2021-10-18 | 2021-10-18 | Wind power full power converter double-branch low-energy-consumption temperature control type test platform |
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| CN (1) | CN216956192U (en) |
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2021
- 2021-10-18 CN CN202122506659.2U patent/CN216956192U/en active Active
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