Energy storage type elevator energy-saving device detection system
By designing an energy-saving elevator energy-saving device detection system, using DC input module, DC output module and controller to simulate the various operating conditions of the elevator in non-site environments, the testing cost and difficulty problems caused by the lack of specialized testing systems in the prior art are solved, and efficient and accurate performance testing is achieved.
Patent Information
- Application Number
- CN202420560866.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The lack of special testing systems or equipment in the prior art has led to the performance testing of energy-storage elevator energy-saving devices that need to be carried out in the on-site environment, which increases the testing cost and difficulty, and some test projects are difficult to complete in the on-site environment.
An energy-storage elevator energy-saving device detection system is designed, including a DC input module, a DC output module and a controller, which can simulate the charging and discharging state of the elevator under various operating conditions in a non-site environment, thereby realizing the performance test of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the energy-saving device of the
Performance testing of energy-saving equipment for energy storage elevators has been achieved in non-site environments, reducing the testing cost and labor intensity of testing, improving the testing efficiency and quality, and being able to simulate extreme working conditions and improving the testing quality.
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Figure CN222561705U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of elevator energy-saving device detection, and in particular to an energy storage type elevator energy-saving device detection system. Background Art
[0002] Currently, when an elevator is going up with a light load or going down with a heavy load, it will enter the power generation state. The traditional processing method is to connect the inverter DC bus with the braking resistor to convert this part of the electrical energy into heat energy consumption. However, this method is not only not conducive to energy saving, but the heat generated may also cause the temperature of the elevator room to rise, affecting the normal operation of the equipment in the room.
[0003] In order to solve the above problems, the elevator industry has actively developed a variety of energy storage elevator energy-saving devices in recent years. These devices use energy storage methods to store the electrical energy generated during operation, and then release it when the elevator needs to consume electricity to achieve the purpose of energy saving. However, before actual installation and use, these energy-saving devices need to be performance tested. Although some energy-saving devices have formulated corresponding standards, due to the lack of specialized testing systems or equipment, the energy-saving devices need to be installed on-site on the elevator machine during performance testing to complete the relevant test items. This not only increases the testing cost, but also due to the limitations of on-site testing conditions, some test items are difficult to complete in a field environment. Utility Model Content
[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a detection system for an energy storage type elevator energy saving device, so that after the test personnel electrically connect the energy storage type elevator energy saving device with the detection system of the present application, the detection system of the present application has the ability to simulate the charging and discharging state of the elevator under various operating conditions, thereby being able to realize the performance test of the energy storage type elevator energy saving device in an off-site environment.
[0005] To achieve the above-mentioned purpose, an embodiment of the present application provides a detection system for an energy storage type elevator energy-saving device, the system comprising: a DC input module, a DC output module and a controller; the DC input module is electrically connected to the DC input end of the energy storage type elevator energy-saving device, and the DC output module is electrically connected to the DC output end of the energy storage type elevator energy-saving device; the controller is electrically connected to the DC / AC conversion circuits in the DC input module and the DC output module respectively through a drive circuit, the controller is electrically connected to the output ends of the DC input module and the DC output module respectively through a signal collector, the input end of the DC input module and the output end of the DC output module are connected to an AC power grid, the DC input module is used to convert the three-phase AC power input by the AC power grid into DC power and output it, and the DC output module is used to convert the DC power input by the energy storage type elevator energy-saving device into three-phase AC power and output it.
[0006] In some embodiments, the drive circuit includes a first drive circuit and a second drive circuit, the controller is electrically connected to the first DC / AC conversion circuit in the DC input module through the first drive circuit, and is electrically connected to the second DC / AC conversion circuit in the DC output module through the second drive circuit; the signal collector includes a DC signal collector and an AC signal collector, the controller is electrically connected to the output end of the DC input module through the DC signal collector, and is electrically connected to the output end of the DC output module through the AC signal collector.
[0007] In some embodiments, the DC input module includes an isolation transformer, an EMI filter, a first rectifier circuit, an input filter circuit, a first DC / AC conversion circuit, a high-frequency transformer, a second rectifier circuit, and an output filter circuit electrically connected in sequence.
[0008] In some embodiments, a three-phase alternating current is input to the input end of the isolation transformer, and an output end of the output filter circuit is electrically connected to the direct current input end of the energy storage type elevator energy saving device.
[0009] In some embodiments, the DC signal collector is electrically connected to an output end of the output filter circuit.
[0010] In some embodiments, the DC output module includes a second DC / AC conversion circuit and a transformer electrically connected in sequence.
[0011] In some embodiments, the input end of the second DC / AC conversion circuit is electrically connected to the DC output end of the energy storage type elevator energy saving device, and the transformer outputs three-phase AC power.
[0012] In some embodiments, the AC signal collector is electrically connected to the output end of the transformer.
[0013] In some embodiments, the controller is used to adjust the electrical parameters output by the DC input module and the DC output module through the driving circuit, and is used to obtain the electrical parameter data output by the DC input module and the DC output module through the signal collector.
[0014] In some embodiments, the energy storage type elevator energy saving device is used to store the DC power at the DC input end, and to output the DC power through the DC output end.
[0015] The energy storage type elevator energy saving device detection system proposed in the present application has at least the following beneficial effects: in an off-site environment, such as a laboratory environment, the test personnel can electrically connect the DC input module and the DC output module in the energy storage type elevator energy saving device detection system to the DC input terminal and the DC output terminal of the energy storage type elevator energy saving device respectively, and the controller is electrically connected to the DC / AC conversion circuits in the DC input module and the DC output module respectively through the driving circuit, and is electrically connected to the output terminals of the DC input module and the DC output module respectively through the signal collector, wherein the DC input module of the present application is intended to simulate the state of current generated by the DC bus of the elevator inverter, and the DC output module is used to simulate the state of the output current, so that the controller can flexibly adjust the DC according to different test requirements. The electrical parameters of C / AC conversion, such as frequency and voltage, can simulate various operating conditions of the elevator in actual operation and their corresponding charging and discharging states. During the test, the system can monitor the power conversion state in real time and allow electrical parameter adjustment as needed to ensure that the test conditions meet the predetermined standards for conducting energy storage performance tests of energy storage elevator energy-saving devices. It is worth noting that the present application can be operated in an off-site environment, which not only reduces the test cost and test labor intensity, but also improves the test efficiency, and can simulate extreme conditions that are difficult to achieve at the elevator installation site, thereby further improving the test quality. In addition, in the detection system, the DC output module can convert the electric energy generated in the test into AC power and feed it back to the AC power grid, which can reduce the test power consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.
[0017] Figure 1 It is a module schematic diagram of an energy storage type elevator energy saving device detection system provided by an embodiment of the present application;
[0018] Figure 2 It is a module schematic diagram of an energy storage type elevator energy saving device detection system provided by another embodiment of the present application;
[0019] Figure 3 It is a module diagram of an energy storage type elevator energy saving device detection system provided in another embodiment of the present application. DETAILED DESCRIPTION
[0020] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0021] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0022] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0023] In the description of this application, unless otherwise clearly defined, terms such as setting, installation, and electrical connection should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0024] Currently, when an elevator is going up with a light load or going down with a heavy load, it will enter the power generation state. The traditional processing method is to connect the inverter DC bus with the braking resistor to convert this part of the electrical energy into heat energy consumption. However, this method is not only not conducive to energy saving, but the heat generated may also cause the temperature of the elevator room to rise, affecting the normal operation of the equipment in the room.
[0025] In order to solve the above problems, the elevator industry has actively developed a variety of energy storage elevator energy-saving devices in recent years. These devices use energy storage methods to store the electrical energy generated during operation, and then release it when the elevator needs to consume electricity to achieve the purpose of energy saving. However, before actual installation and use, these energy-saving devices need to be performance tested. Although some energy-saving devices have formulated corresponding standards, due to the lack of specialized testing systems or equipment, the energy-saving devices need to be installed on-site on the elevator machine during performance testing to complete the relevant test items. This not only increases the testing cost, but also due to the limitations of on-site testing conditions, some test items are difficult to complete in a field environment.
[0026] Based on the above situation, the present application proposes a detection system for an energy storage type elevator energy-saving device, including: a DC input module, a DC output module and a controller; the DC input module is electrically connected to the DC input end of the energy storage type elevator energy-saving device, and the DC output module is electrically connected to the DC output end of the energy storage type elevator energy-saving device; the controller is electrically connected to the DC / AC conversion circuits in the DC input module and the DC output module respectively through a driving circuit, and the controller is electrically connected to the output ends of the DC input module and the DC output module respectively through a signal collector, and the input end of the DC input module and the output end of the DC output module are connected to the AC power grid, wherein the present application can operate in an off-site environment, so that after the test personnel electrically connect the energy storage type elevator energy-saving device to the detection system of the present application, the detection system of the present application has the ability to simulate the charging and discharging state of the elevator under various operating conditions, thereby being able to realize the performance test of the energy storage type elevator energy-saving device in an off-site environment.
[0027] The embodiments of the present application are further described below in conjunction with the accompanying drawings.
[0028] refer to Figures 1 to 3 , Figure 1 It is a module schematic diagram of an energy storage type elevator energy saving device detection system provided by an embodiment of the present application; Figure 2 It is a module schematic diagram of an energy storage type elevator energy saving device detection system provided by another embodiment of the present application; Figure 3 It is a module diagram of an energy storage type elevator energy saving device detection system provided in another embodiment of the present application.
[0029] In some embodiments, the present application provides a detection system for an energy storage type elevator energy saving device, the system comprising: a DC input module 102, a DC output module 103 and a controller 101; the DC input module 102 is electrically connected to the DC input end of the energy storage type elevator energy saving device 104, and the DC output module 103 is electrically connected to the DC output end of the energy storage type elevator energy saving device 104; the controller 101 is electrically connected to the DC / AC conversion circuits in the DC input module 102 and the DC output module 103 respectively through a drive circuit, and the controller 101 is electrically connected to the output ends of the DC input module 102 and the DC output module 103 respectively through a signal collector, the input end of the DC input module 102 and the output end of the DC output module 103 are connected to the AC power grid, the DC input module 102 is used to convert the three-phase AC power inputted by the AC power grid into DC power and output it, the DC output module 103 is used to convert the DC power inputted by the energy storage type elevator energy saving device 104 into three-phase AC power and output it, and the AC power grid corresponds to Figure 2 and Figure 3 The three-phase mains input and three-phase mains output.
[0030] It can be understood that based on the present application, in an off-site environment, such as a laboratory environment, the test personnel can electrically connect the DC input module 102 and the DC output module 103 in the energy storage type elevator energy-saving device detection system to the DC input terminal and the DC output terminal of the energy storage type elevator energy-saving device 104, respectively, and the controller 101 is electrically connected to the DC / AC conversion circuits in the DC input module 102 and the DC output module 103 through the driving circuit, and is electrically connected to the output terminals of the DC input module 102 and the DC output module 103 through the signal collector, wherein the DC input module 102 of the present application is intended to simulate the state of current generated by the DC bus of the elevator inverter, and the DC output module 103 is used to simulate the state of the output current formed by the stored electric energy, so that the controller 101 can simulate the state of the output current formed by the stored electric energy according to different measurements. The test requires flexible adjustment of the electrical parameters of the DC / AC conversion, such as frequency and voltage, so as to simulate various operating conditions of the elevator in actual operation and their corresponding charging and discharging states. During the test, the system can monitor the power conversion state in real time and allow electrical parameter adjustment as needed to ensure that the test conditions meet the predetermined standards for conducting energy storage performance tests of the energy storage type elevator energy saving device 104. It is worth noting that the present application can be operated in an off-site environment, which not only reduces the test cost and test labor intensity, but also improves the test efficiency, and can simulate extreme conditions that are difficult to achieve at the elevator installation site, thereby further improving the test quality. In addition, in the detection system, the DC output module 103 can convert the electric energy generated in the test into alternating current and feed it back to the AC power grid, which can reduce the test power consumption.
[0031] In some embodiments, the driving circuit includes a first driving circuit 206 and a second driving circuit 301, the controller 101 is electrically connected to the first DC / AC conversion circuit 205 in the DC input module 102 through the first driving circuit 206, and is electrically connected to the second DC / AC conversion circuit 303 in the DC output module 103 through the second driving circuit 301; the signal collector includes a DC signal collector 210 and an AC signal collector 302, the controller 101 is electrically connected to the output end of the DC input module 102 through the DC signal collector 210, and is electrically connected to the output end of the DC output module 103 through the AC signal collector 302, wherein the DC signal collector 210 is used to collect the output end of the DC input module 102 The DC current and voltage signals are collected and transmitted to the controller 101; the AC signal collector 302 is used to collect the AC current and voltage signals at the output end of the DC output module 103, and transmit them to the controller 101, so that after the test personnel complete the wiring of the DC input module 102 and the DC output module 103 in the energy storage type elevator energy saving device detection system with the DC input end and the DC output end of the energy storage type elevator energy saving device 104 respectively, they can start the detection system, and by adjusting the parameters of the DC input end and the DC output end, the energy storage type energy saving device can be operated under different working conditions to complete the detection of items such as the quality of stored power, effectiveness of the protection function, and efficiency of the energy saving device. At the same time, the test data collected by the signal collector on the controller 101 is read to complete the test.
[0032] In some embodiments, the DC input module 102 includes an isolation transformer 201, an EMI filter 202, a first rectifier circuit 203, an input filter circuit 204, a first DC / AC conversion circuit 205, a high-frequency transformer 207, a second rectifier circuit 208 and an output filter circuit 209 which are electrically connected in sequence.
[0033] In some embodiments, the input end of the isolation transformer 201 is input with three-phase AC power, the output end of the output filter circuit 209 is electrically connected to the DC input end of the energy storage type elevator energy saving device 104 , and the DC signal collector 210 is electrically connected to the output end of the output filter circuit 209 .
[0034] Among them, the DC input module 102 is designed to convert the input three-phase AC power into DC output to simulate the electric energy generated by the elevator. The following are the functions of each component: the isolation transformer 201 is used to isolate and convert the voltage of the input three-phase AC power. The isolation transformer 201 provides electrical isolation and can provide a suitable input voltage for subsequent circuits by converting the voltage; the EMI filter 202 is used to suppress the propagation of electromagnetic interference (EMI). The filter improves the electromagnetic compatibility of the power supply and reduces interference to other electronic devices by absorbing and eliminating electromagnetic noise; the first rectifier circuit 203 is used to convert the filtered three-phase AC power into DC power; the input filter circuit 204 is used to filter the rectified DC power and smooth the waveform of the DC power; the first DC / AC converter The conversion circuit 205 is used to convert the filtered direct current into alternating current again, and can be used to adjust the voltage, frequency or waveform when the controller 101 is controlled by the driving circuit, so as to simulate the charging and discharging state corresponding to the electric energy generated by the elevator under various operating conditions; the high-frequency transformer 207 is used to convert the voltage and isolate the alternating current after DC / AC conversion. The operating frequency of the high-frequency transformer 207 is higher than the traditional 50 / 60Hz alternating current, which helps to reduce the size and weight of the transformer and improve the efficiency of the power supply; the second rectifier circuit 208 is used to convert the high-frequency alternating current output by the high-frequency transformer 207 into direct current again; the output filter circuit 209 is used to filter the final direct current to further reduce the ripple and provide a stable and smooth direct current output.
[0035] In some embodiments, the DC output module 103 includes a second DC / AC conversion circuit 303 and a transformer 304 which are electrically connected in sequence.
[0036] In some embodiments, the input end of the second DC / AC conversion circuit 303 is electrically connected to the DC output end of the energy storage elevator energy saving device 104, the transformer 304 outputs three-phase AC power, and the AC signal collector 302 is electrically connected to the output end of the transformer 304.
[0037] Among them, the DC output module 103 is designed to simulate the operating condition of the energy-saving device when it outputs stored electric energy. The second DC / AC conversion circuit 303 is used to convert the DC power output by the energy-saving device into AC power again, and can be used to adjust the voltage, frequency or waveform when the controller 101 is controlled by the drive circuit, output three-phase AC power, and then simulate the corresponding charging and discharging state output to the power grid under various operating conditions. The transformer 304 is used to adjust the output voltage of the three-phase AC power so that the three-phase AC power can be fed back to the AC power grid again, thereby reducing the test power consumption.
[0038] In some embodiments, the controller 101 is used to adjust the electrical parameters output by the DC input module 102 and the DC output module 103 through a driving circuit, and is used to obtain the electrical parameter data output by the DC input module 102 and the DC output module 103 through a signal collector.
[0039] In some embodiments, the energy storage type elevator energy saving device is implemented using energy storage devices (including but not limited to supercapacitors and rechargeable batteries). The energy storage type elevator energy saving device 104 is used to store the DC power at the DC input end and to output DC power through the DC output end. The DC power at the DC input end corresponds to the current generated by the DC bus of the inverter when the elevator enters the power generation state when the car is lightly loaded upward or heavily loaded downward. The DC output end stores the electric energy generated during the operation of the elevator, and then releases the electric energy when the elevator needs to consume power. At the same time, in actual use, the AC input and output corresponding to the DC input and DC output ends can be the connected three-phase 380V AC input and three-phase 380V AC output.
[0040] In some embodiments, the current and voltage regulation of the DC input module 102 and the DC output module 103 can be achieved by changing the working state of the corresponding DC / AC conversion circuit. For example, the controller 101 can adjust the input and output current and voltage by changing the switching frequency or duty cycle of the conversion circuit to simulate the charging and discharging state of the elevator under various operating conditions, thereby enabling performance testing of the energy storage elevator energy-saving device 104 in an off-site environment.
[0041] The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
[0042] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of units is not necessarily limited to those units clearly listed, but may include other units that are not clearly listed or inherent to these products or devices.
[0043] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.
Claims
1. A detection system for an energy storage type elevator energy saving device, characterized in that: The system comprises: a DC input module, a DC output module and a controller; The DC input module is electrically connected to the DC input terminal of the energy storage type elevator energy saving device, and the DC output module is electrically connected to the DC output terminal of the energy storage type elevator energy saving device; The controller is electrically connected to the DC / AC conversion circuits in the DC input module and the DC output module respectively through a driving circuit, and the controller is electrically connected to the output ends of the DC input module and the DC output module respectively through a signal collector. The input end of the DC input module and the output end of the DC output module are connected to the AC power grid. The DC input module is used to convert the three-phase AC power input by the AC power grid into DC power and output it, and the DC output module is used to convert the DC power input by the energy storage elevator energy-saving device into three-phase AC power and output it.
2. The energy storage type elevator energy saving device detection system according to claim 1 is characterized in that: The drive circuit includes a first drive circuit and a second drive circuit, the controller is electrically connected to the first DC / AC conversion circuit in the DC input module through the first drive circuit, and is electrically connected to the second DC / AC conversion circuit in the DC output module through the second drive circuit; The signal collector includes a DC signal collector and an AC signal collector. The controller is electrically connected to the output end of the DC input module through the DC signal collector, and is electrically connected to the output end of the DC output module through the AC signal collector.
3. The energy storage type elevator energy saving device detection system according to claim 2 is characterized in that: The DC input module includes an isolation transformer, an EMI filter, a first rectifier circuit, an input filter circuit, a first DC / AC conversion circuit, a high-frequency transformer, a second rectifier circuit and an output filter circuit which are electrically connected in sequence.
4. The energy storage type elevator energy saving device detection system according to claim 3 is characterized in that: The input end of the isolation transformer is input with three-phase alternating current, and the output end of the output filter circuit is electrically connected to the direct current input end of the energy storage type elevator energy saving device.
5. The energy storage type elevator energy saving device detection system according to claim 3 is characterized in that: The DC signal collector is electrically connected to the output end of the output filter circuit.
6. The energy storage type elevator energy saving device detection system according to claim 2, characterized in that: The DC output module includes a second DC / AC conversion circuit and a transformer which are electrically connected in sequence.
7. The energy storage type elevator energy saving device detection system according to claim 6, characterized in that: The input end of the second DC / AC conversion circuit is electrically connected to the DC output end of the energy storage type elevator energy saving device, and the transformer outputs three-phase AC power.
8. The energy storage type elevator energy saving device detection system according to claim 6, characterized in that: The AC signal collector is electrically connected to the output end of the transformer.
9. The energy storage type elevator energy saving device detection system according to claim 1, characterized in that: The controller is used to adjust the electrical parameters output by the DC input module and the DC output module through the driving circuit, and is used to obtain the electrical parameter data output by the DC input module and the DC output module through the signal collector.
10. The energy storage type elevator energy saving device detection system according to claim 1, characterized in that: The energy storage type elevator energy saving device is used to store the DC power at the DC input end, and to output the DC power through the DC output end.