CN219737651U - Flywheel energy storage electric parameter monitoring device - Google Patents
Flywheel energy storage electric parameter monitoring device Download PDFInfo
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Abstract
The utility model discloses a flywheel energy storage electrical parameter monitoring device, which comprises: the system comprises a flywheel energy storage equipment working current detection module, a traction load working current detection module, a power supply system alternating current voltage detection module, a basic parameter acquisition module and an energy-saving parameter acquisition module, wherein the flywheel energy storage equipment working current detection module is respectively and electrically connected with a direct current power supply and the basic parameter acquisition module of the power supply system, the traction load working current detection module is respectively and electrically connected with an alternating current power supply and the basic parameter acquisition module of the power supply system, the power supply system alternating current voltage detection module is respectively and electrically connected with the alternating current power supply and the basic parameter acquisition module of the power supply system, and the basic parameter acquisition module is further electrically connected with the energy-saving parameter acquisition module. The working current of the accurate flywheel energy storage equipment, the working current of the traction load, the alternating current voltage and the direct current voltage of the power supply system are obtained through the basic parameter obtaining module, and then the accurate flywheel energy storage electricity-saving quantity and the energy-saving rate are obtained.
Description
Technical Field
The utility model belongs to the technical field of flywheel energy storage electrical parameter monitoring, and particularly relates to a flywheel energy storage electrical parameter monitoring device.
Background
The regenerative braking energy recovery in the rail transit can effectively reduce the electricity cost, save the energy consumption and improve the running safety and stability of the train.
At present, the regenerative braking energy recovery mainly comprises a resistor consumption type mode, a medium-voltage energy feedback mode, a super-capacitor type mode, a flywheel energy storage mode and the like. The resistance consumption type device converts regenerative braking energy into heat to be consumed, so that temperature rise can be brought, and heat dissipation pressure can be increased; the medium-voltage energy feedback device feeds regenerative braking energy back to the alternating current power grid, so that the loss is large, the harmonic wave is more, and the system power quality is influenced; the super capacitor type device and the flywheel energy storage type device are both arranged on the direct current side of the power supply system, when a train brakes, regenerative braking energy is absorbed from the traction network and stored, when the train starts, the stored energy is released, the direct current traction network voltage is stabilized, the alternating current power grid is not influenced, and compared with the super capacitor, the flywheel energy storage device has the advantages of long service life, small occupied area and the like, and is more suitable for being arranged in a narrow space of an urban rail transit distribution room.
The improvement effect of the flywheel on the rail transit is evaluated through the electricity-saving quantity and the energy-saving rate of the flywheel energy storage, the electricity-saving quantity and the energy-saving rate of the flywheel energy storage are related to the output voltage of the rail power supply system, the working current of the traction load and the working current of the flywheel energy storage, no monitoring device can obtain the output voltage of the rail power supply system, the working current of the traction load and the working current of the flywheel energy storage in real time at present, and further the energy-saving quantity and the energy-saving rate of the flywheel energy storage are evaluated, so that the judgment of the flywheel on the improvement effect of the rail transit is affected.
Disclosure of Invention
In view of the above, the utility model provides a flywheel energy storage electrical parameter monitoring device, which mainly aims to solve the problem that the output voltage of a track power supply system, the working current of a traction load and the working current of flywheel energy storage cannot be obtained in real time by the existing method.
In order to solve the above problems, the present utility model provides a flywheel energy storage electrical parameter monitoring device, which includes: the device comprises a flywheel energy storage equipment working current detection module, a traction load working current detection module, a power supply system alternating voltage detection module, a basic parameter acquisition module and an energy-saving parameter acquisition module,
the voltage input end of the flywheel energy storage equipment working current detection module is electrically connected with the direct current power supply output end of the power supply system, the current output end of the flywheel energy storage equipment working current detection module is electrically connected with the flywheel energy storage current input end of the basic parameter acquisition module, the input end of the traction load working current detection module is electrically connected with the alternating current power supply output end of the power supply system, the output end of the traction load working current detection module is electrically connected with the traction load current input end of the basic parameter acquisition module, the input end of the power supply system alternating current voltage detection module is electrically connected with the alternating current power supply output end of the power supply system, the output end of the power supply system alternating current voltage detection module is electrically connected with the alternating current voltage input end of the basic parameter acquisition module, the direct current voltage input end of the basic parameter acquisition module is electrically connected with the direct current power supply output end of the power supply system, and the output end of the basic parameter acquisition module is electrically connected with the input end of the energy-saving parameter acquisition module;
the basic parameters are used for obtaining working current of flywheel energy storage equipment, working current of traction load, alternating current voltage and direct current voltage of a power supply system.
In one embodiment of the present utility model, optionally, the traction load operating current detection module is a current transformer, wherein,
the input end of the current transformer is electrically connected with the output end of the alternating current power supply of the power supply system, and the output end of the current transformer is electrically connected with the traction load current input end of the basic parameter acquisition module.
In one embodiment of the present utility model, optionally, the dc power output terminal of the power supply system includes a dc power positive terminal and a dc power negative terminal, and the flywheel energy storage device working current detection module is a flywheel energy storage device current test collar, where,
the voltage input end of the flywheel energy storage device current testing lantern ring is electrically connected with the positive end of the direct current power supply of the power supply system, the current output end of the flywheel energy storage device current testing lantern ring is electrically connected with the flywheel energy storage current input end of the basic parameter acquisition module, the voltage output end of the flywheel energy storage device current testing lantern ring is electrically connected with the positive input end of the power supply of the flywheel energy storage device, and the negative input end of the power supply of the flywheel energy storage device is electrically connected with the negative end of the direct current power supply of the power supply system.
In one embodiment of the present utility model, optionally, the power supply system voltage detection module is a voltage transformer, wherein,
the input end of the voltage transformer is electrically connected with the alternating current power supply output end of the power supply system, and the output end of the voltage transformer is electrically connected with the alternating current voltage input end of the basic parameter acquisition module.
In one embodiment of the present utility model, optionally, the dc voltage input terminal of the basic parameter obtaining module is electrically connected to a dc power supply positive terminal of the power supply system.
In one embodiment of the utility model, the power supply system optionally further comprises a traction transformer and a three-phase rectifier, wherein,
the input end of the traction transformer is electrically connected with the alternating current power supply output end of the power supply system, the output end of the traction transformer is electrically connected with the input end of the three-phase rectifier, the output end of the three-phase rectifier is electrically connected with the direct current power supply input end of the power supply system, and the direct current power supply output end of the power supply system is electrically connected with the power supply input end of the rail train.
In one embodiment of the present utility model, optionally, the basic parameter obtaining module is a power quality analyzer.
In one embodiment of the present utility model, optionally, the basic parameter obtaining module is configured to transmit an operating current of the flywheel energy storage device, an operating current of a traction load, an ac voltage and a dc voltage of a power supply system to the energy saving parameter obtaining module.
In one embodiment of the present utility model, optionally, the energy saving parameter obtaining module is configured to calculate the energy saving amount and the energy saving rate of the flywheel energy storage according to the working current of the flywheel energy storage device, the working current of the traction load, the ac voltage and the dc voltage of the power supply system.
The utility model has the beneficial effects that: according to the flywheel energy storage electrical parameter monitoring device, the working current detection module of the flywheel energy storage equipment, the traction load working current detection module and the power supply system alternating current voltage detection module are arranged, so that the basic parameter acquisition module acquires the working current of the accurate flywheel energy storage equipment, the working current of the traction load, the alternating current voltage and the direct current voltage of the power supply system, and further accurate flywheel energy storage electricity saving quantity and energy saving rate are obtained, and the improvement effect of the flywheel energy storage equipment on rail transit is conveniently and accurately judged.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural connection diagram of a flywheel energy storage electrical parameter monitoring device according to an exemplary embodiment of the present utility model.
In the figure: the system comprises a 1-flywheel energy storage equipment working current detection module, a 2-traction load working current detection module, a 3-power supply system alternating current voltage detection module, a 4-basic parameter acquisition module, a 5-energy-saving parameter acquisition module, a 6-flywheel energy storage equipment, a 7-rail train, an 8-traction transformer and a 9-three-phase rectifier.
Detailed Description
In order to overcome the defects in the prior art, the utility model provides a flywheel energy storage electrical parameter monitoring device. In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the preferred embodiments of the present utility model will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present utility model. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the utility model. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a flywheel energy storage electrical parameter monitoring device, the device comprises: the system comprises a flywheel energy storage device working current detection module 1, a traction load working current detection module 2, a power supply system alternating current voltage detection module 3, a basic parameter acquisition module 4 and an energy-saving parameter acquisition module 5, wherein the voltage input end of the flywheel energy storage device working current detection module 1 is electrically connected with the direct current power supply output end of the power supply system, the current output end of the flywheel energy storage device working current detection module 1 is electrically connected with the flywheel energy storage current input end of the basic parameter acquisition module 4, the input end of the traction load working current detection module 2 is electrically connected with the alternating current power supply output end of the power supply system, the output end of the power supply system alternating current voltage detection module 3 is electrically connected with the alternating current voltage input end of the basic parameter acquisition module 4, the direct current voltage input end of the basic parameter acquisition module 4 is electrically connected with the direct current power supply output end of the power supply system, and the output end of the basic parameter acquisition module 4 is electrically connected with the input end of the energy-saving parameter acquisition module 5; the basic parameters are obtained and used for obtaining working current of flywheel energy storage equipment, working current of traction load, alternating current voltage and direct current voltage of a power supply system.
Specifically, the basic parameter acquisition module is respectively connected with the flywheel energy storage equipment working current detection module and the traction load working current detection module through current lines so as to obtain working current of the flywheel energy storage equipment and working current of the traction load, and is respectively connected with the power supply system alternating current voltage detection module and the direct current power supply output end of the power supply system through voltage lines so as to obtain alternating current voltage and direct current voltage of the power supply system, and the basic parameter acquisition module outputs the acquired working current of the flywheel energy storage equipment, the working current of the traction load, the alternating current voltage and the direct current voltage of the power supply system to the energy-saving parameter acquisition module so as to enable the energy-saving parameter acquisition module to obtain the energy-saving quantity and the energy-saving rate of flywheel energy storage according to the parameters.
In this embodiment, the technical solution provided by the present utility model is mainly implemented by means of the connection relationship between the circuit modules.
Compared with the prior art, the flywheel energy storage electric parameter monitoring device provided by the utility model has the advantages that the working current detection module of the flywheel energy storage equipment, the traction load working current detection module and the power supply system alternating current voltage detection module are arranged, so that the basic parameter acquisition module acquires the working current of the accurate flywheel energy storage equipment, the working current of the traction load, the alternating current voltage and the direct current voltage of the power supply system, the accurate flywheel energy storage electricity saving quantity and the energy saving rate are further obtained, and the improvement effect of the flywheel energy storage equipment on the rail transit is conveniently and accurately judged.
In one embodiment, the traction load working current detection module 2 is a current transformer, wherein an input end of the current transformer is electrically connected with an alternating current power supply output end of the power supply system, and an output end of the current transformer is electrically connected with a traction load current input end of the basic parameter acquisition module 4.
Specifically, one end of a group of current wires is connected to a traction load current input end of the basic parameter acquisition module, the other end of the group of current wires is connected to a secondary coil of a current transformer in an alternating current power supply of a power supply system, namely an output end of the current transformer, the current transformer acquires traction load working current and transmits the traction load working current to the basic parameter acquisition module, and the traction load comprises a traction transformer, a rail train and flywheel energy storage equipment.
In one embodiment, the dc power output end of the power supply system includes a dc power positive end and a dc power negative end, the flywheel energy storage device working current detection module 1 is a flywheel energy storage device current test collar, where the voltage input end of the flywheel energy storage device current test collar is electrically connected with the dc power positive end of the power supply system, the current output end of the flywheel energy storage device current test collar is electrically connected with the flywheel energy storage current input end of the basic parameter acquisition module 4, the voltage output end of the flywheel energy storage device current test collar is electrically connected with the power positive input end of the flywheel energy storage device, and the power negative input end of the flywheel energy storage device is electrically connected with the dc power negative end of the power supply system.
Specifically, one end of a group of current wires is connected to the flywheel energy storage current input end of the basic parameter acquisition module, the other end of the group of current wires is connected to the current output end of the flywheel energy storage device current test lantern ring, the positive end of the direct current power supply and the negative end of the direct current power supply of the power supply system are respectively connected with the positive and negative input ends of the flywheel energy storage device to provide working power for the flywheel energy storage device, the flywheel energy storage device current test lantern ring is arranged between the positive input end of the flywheel energy storage device and the positive end of the direct current power supply of the power supply system, working current of the flywheel energy storage device is acquired, and the working current is transmitted to the basic parameter acquisition module through the group of current wires.
In one embodiment, the power supply system voltage detection module is a voltage transformer, wherein an input end of the voltage transformer is electrically connected with an ac power supply output end of the power supply system, and an output end of the voltage transformer is electrically connected with an ac voltage input end of the basic parameter acquisition module 4.
Specifically, one end of a group of voltage lines is connected to an alternating current voltage input end of the basic parameter acquisition module, the other end of the group of voltage lines is connected to a secondary coil end of a voltage transformer in an alternating current power supply of the power supply system, namely an output end of the voltage transformer, the voltage transformer converts a high-voltage power supply of the alternating current power supply system into a low-voltage power supply, namely the secondary coil of the voltage transformer outputs the low-voltage power supply, the basic parameter acquisition module acquires the amplitude of the low-voltage power supply and then transmits the amplitude of the low-voltage power supply to the basic parameter acquisition module, and the basic parameter acquisition module calculates and acquires the amplitude of the alternating current power supply of the power supply system according to the amplitude of the voltage power supply and the multiple of the voltage transformer, or the basic parameter acquisition module calculates and acquires the amplitude of the alternating current power supply of the power supply system according to the amplitude of the low-voltage power supply and the multiple of the voltage transformer.
In one embodiment, the dc voltage input of the base parameter acquisition module 4 is electrically connected to the dc power supply positive terminal of the power supply system.
Specifically, one end of a group of voltage lines is connected to the direct-current voltage input end of the basic parameter acquisition module, the other end of the group of voltage lines is connected to the positive end of the direct-current power supply of the power supply system, and the basic parameter acquisition module acquires the amplitude value of the direct-current power supply of the power supply system and then transmits the amplitude value to the basic parameter acquisition module.
In one embodiment, the power supply system further comprises a traction transformer 8 and a three-phase rectifier 9, wherein the input end of the traction transformer 8 is electrically connected with the ac power supply output end of the power supply system, the output end of the traction transformer 8 is electrically connected with the input end of the three-phase rectifier 9, the output end of the three-phase rectifier 9 is electrically connected with the dc power supply input end of the power supply system, and the dc power supply output end of the power supply system is electrically connected with the power supply input end of the rail train 7.
Specifically, the traction transformer is a transformer for converting a three-phase high-voltage power supply into a three-phase low-voltage power supply, wherein the primary coil, namely the input end, of the traction transformer is connected with the output end of an alternating-current power supply of a power supply system, namely the output end of the three-phase alternating-current high-voltage power supply, the secondary coil, namely the output end, of the traction transformer is connected with the input end of a three-phase rectifier, the converted three-phase low-voltage power supply is sent into the three-phase rectifier, the three-phase low-voltage power supply is converted into a direct-current power supply through the three-phase rectifier, and the direct-current power supply is connected into a direct-current traction network bus to provide the direct-current power supply for a rail train.
In one embodiment, the base parameter acquisition module 4 is a power quality analyzer.
Specifically, the electric energy quality analyzer not only can acquire working current of flywheel energy storage equipment, working current of traction load, alternating current voltage and direct current voltage of a power supply system, but also can output indexes such as three-phase voltage unbalance degree of the alternating current power supply system, total voltage harmonic distortion rate of the alternating current power supply system, busbar voltage deviation of a direct current traction network and the like according to acquired data, the indexes are index parameters for evaluating the improvement effect of flywheel energy storage on rail transit, and the energy saving quantity and the energy saving rate of the flywheel energy storage can be combined to quantitatively evaluate the application effect of the flywheel energy storage on the rail transit, so that operation analysis data support is provided for popularizing the application effect of the flywheel energy storage in the rail transit in China.
In one embodiment, the basic parameter obtaining module 4 is optionally configured to transmit the working current of the flywheel energy storage device 6, the working current of the traction load, the ac voltage and the dc voltage of the power supply system to the energy saving parameter obtaining module 5.
Specifically, the basic parameter acquisition module is respectively connected with the flywheel energy storage equipment working current detection module and the traction load working current detection module through current lines so as to obtain working current of the flywheel energy storage equipment and working current of the traction load, and is respectively connected with the power supply system alternating current voltage detection module and the direct current power supply output end of the power supply system through voltage lines so as to obtain alternating current voltage and direct current voltage of the power supply system, and the basic parameter acquisition module outputs the acquired working current of the flywheel energy storage equipment, the working current of the traction load, the alternating current voltage and the direct current voltage of the power supply system to the energy-saving parameter acquisition module.
In one embodiment, the energy-saving parameter obtaining module 5 is configured to calculate the energy-saving amount and the energy-saving rate of the flywheel energy storage according to the working current of the flywheel energy storage device 6, the working current of the traction load, and the ac voltage and the dc voltage of the power supply system.
Specifically, one end of the data transmission line is connected with the basic parameter acquisition module, the other end of the data transmission line is connected with the energy-saving parameter acquisition module, the basic parameter acquisition module transmits acquired signals to the energy-saving parameter acquisition module through the data transmission line, the energy-saving parameter acquisition module comprises a data analysis module and a result display module, the data analysis module calculates the energy-saving quantity and the energy-saving rate of flywheel energy storage according to the acquired basic data, and then pushes the calculation result to the result display module to display the energy-saving quantity and the energy-saving rate of the flywheel energy storage on a screen.
The flywheel energy storage electricity-saving quantity comprises an accumulated electricity-saving quantity and a daily average electricity-saving quantity, wherein the accumulated electricity-saving quantity is the flywheel energy storage accumulated discharge quantity, and the calculation formula or method of the accumulated discharge quantity is as follows Wherein U is DC Is the voltage of a direct current bus, I DC amplifier For flywheel energy storage discharge current, t i1 The ith discharge start time, t, for flywheel energy storage i2 The method comprises the steps that (1) the ith discharge end time of flywheel energy storage is obtained, n is the accumulated discharge times of the flywheel energy storage, and the daily average electricity-saving quantity is the ratio of the accumulated discharge quantity of the flywheel energy storage to the accumulated discharge days, wherein the unit is kilowatt-hours; the flywheel energy storage energy saving rate comprises an accumulated energy saving rate and a daily average energy saving rate, wherein the accumulated energy saving rate is the ratio of the accumulated energy saving amount of flywheel energy storage to the total power consumption of a train system, and the calculation formula or method of the total power consumption of the train system is +.>Wherein U is A 、U B 、U C Phase voltages of A phase, B phase and C phase of the alternating current system respectively, I A 、I B 、I C Phase currents of A phase, B phase and C phase of the alternating current system respectively, t 0 Start time, t, for train system power usage 1 The daily average energy saving rate is the ratio of the flywheel energy storage daily average electricity saving quantity to the daily average electricity consumption quantity of the train system, and the unit is a percentage number.
In this embodiment, the method for calculating the energy saving amount and the energy saving rate of flywheel energy storage can be implemented by a program in the prior art, and the technical scheme provided by the utility model is mainly implemented by means of the connection relationship between circuit modules.
In one embodiment, the energy-saving parameter acquisition module further acquires indexes such as three-phase voltage unbalance degree of the alternating current power supply system, total harmonic distortion rate of the voltage of the alternating current power supply system, voltage deviation of a direct current traction network bus and the like from the basic parameter acquisition module.
The three-phase voltage unbalance degree and the total voltage harmonic distortion rate of the alternating current power supply system are measured results of the power quality analyzer, and the units are percentage numbers; the voltage deviation of the DC traction network bus is the ratio of the difference between the DC voltage measured value and the nominal value to the nominal value, and the unit is a percentage number.
The operation indexes such as the flywheel energy storage energy saving rate, the DC traction network bus voltage deviation and the like are calculated in real time through the monitoring data, so that the quantitative evaluation of the application effect of the flywheel energy storage in the rail transit is realized, and the operation analysis data support is provided for the application of the flywheel energy storage energy saving and emission reduction effect in the national popularization rail transit.
It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the utility model will occur to persons of ordinary skill in the art.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and, together with a general description of the utility model given above, and the detailed description of the embodiments given below, serve to explain the principles of the utility model.
These and other characteristics of the utility model will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It is also to be understood that, although the utility model has been described with reference to some specific examples, those skilled in the art can certainly realize many other equivalent forms of the utility model.
The above and other aspects, features and advantages of the present utility model will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the utility model, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the utility model in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present utility model in virtually any appropriately detailed structure.
The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the utility model.
The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.
Claims (7)
1. A flywheel energy storage electrical parameter monitoring device, the device comprising: the device comprises a flywheel energy storage equipment working current detection module, a traction load working current detection module, a power supply system alternating voltage detection module, a basic parameter acquisition module and an energy-saving parameter acquisition module,
the system comprises a flywheel energy storage equipment working current detection module, a basic parameter acquisition module, a power supply system alternating current power supply output end, a basic parameter acquisition module, a power supply system alternating current power supply input end, a basic parameter acquisition module and an energy-saving parameter acquisition module, wherein the voltage input end of the flywheel energy storage equipment working current detection module is electrically connected with the flywheel energy storage current input end of the power supply system, the current output end of the flywheel energy storage equipment working current detection module is electrically connected with the flywheel energy storage current input end of the basic parameter acquisition module, the input end of the traction load working current detection module is electrically connected with the traction load current input end of the basic parameter acquisition module, the input end of the traction load working current detection module is electrically connected with the power supply system alternating current power supply output end of the power supply system, the output end of the power supply system alternating current voltage detection module is electrically connected with the alternating current voltage input end of the basic parameter acquisition module, the direct current voltage input end of the basic parameter acquisition module is electrically connected with the power supply system, and the output end of the basic parameter acquisition module is electrically connected with the input end of the energy-saving parameter acquisition module;
the basic parameters are used for obtaining working current of flywheel energy storage equipment, working current of traction load, alternating current voltage and direct current voltage of a power supply system.
2. The flywheel energy storage electrical parameter monitoring device of claim 1, wherein the traction load operating current detection module is a current transformer, wherein,
the input end of the current transformer is electrically connected with the output end of the alternating current power supply of the power supply system, and the output end of the current transformer is electrically connected with the traction load current input end of the basic parameter acquisition module.
3. The flywheel energy storage electrical parameter monitoring device according to claim 1, wherein the DC power output end of the power supply system comprises a DC power positive end and a DC power negative end, the flywheel energy storage device working current detection module is a flywheel energy storage device current test collar, wherein,
the voltage input end of the flywheel energy storage device current testing lantern ring is electrically connected with the positive end of the direct current power supply of the power supply system, the current output end of the flywheel energy storage device current testing lantern ring is electrically connected with the flywheel energy storage current input end of the basic parameter acquisition module, the voltage output end of the flywheel energy storage device current testing lantern ring is electrically connected with the positive input end of the power supply of the flywheel energy storage device, and the negative input end of the power supply of the flywheel energy storage device is electrically connected with the negative end of the direct current power supply of the power supply system.
4. The flywheel energy storage electrical parameter monitoring device of claim 1, wherein the power supply system voltage detection module is a voltage transformer, wherein,
the input end of the voltage transformer is electrically connected with the alternating current power supply output end of the power supply system, and the output end of the voltage transformer is electrically connected with the alternating current voltage input end of the basic parameter acquisition module.
5. A flywheel energy storage electrical parameter monitoring device according to claim 3, wherein the dc voltage input of the base parameter acquisition module is electrically connected to the dc power source positive terminal of the power supply system.
6. The flywheel energy storage electrical parameter monitoring device of claim 1, wherein the power supply system further comprises a traction transformer and a three-phase rectifier, wherein,
the input end of the traction transformer is electrically connected with the alternating current power supply output end of the power supply system, the output end of the traction transformer is electrically connected with the input end of the three-phase rectifier, the output end of the three-phase rectifier is electrically connected with the direct current power supply input end of the power supply system, and the direct current power supply output end of the power supply system is electrically connected with the power supply input end of the rail train.
7. The flywheel energy storage electrical parameter monitoring device according to claim 1, wherein the base parameter acquisition module is configured to transmit the working current of the flywheel energy storage device, the working current of the traction load, the ac voltage and the dc voltage of the power supply system to the energy saving parameter acquisition module.
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| CN202223340492.8U CN219737651U (en) | 2022-12-13 | 2022-12-13 | Flywheel energy storage electric parameter monitoring device |
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| CN202223340492.8U CN219737651U (en) | 2022-12-13 | 2022-12-13 | Flywheel energy storage electric parameter monitoring device |
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