CN203630318U - Test system for power system switching power supply module - Google Patents

Abstract

The utility model relates to a test system for a switching power supply module of a power system, which belongs to the technical field of power systems. The test system of the utility model includes a commissioning unit, a digital input and output unit, an analog measuring instrument, an electronic load unit and a voltage source. By setting corresponding ports on the test system, only the The switching power supply module to be tested can be connected to the corresponding port. Use the debugging unit to adjust the electronic load unit and the voltage source to provide the electrical conditions for testing the device to be tested. At the same time, the electrical parameters of the switching power supply module to be tested are collected and judged. The status of the switching power supply module to be tested, so the test system only needs to connect the switching power supply module to be tested to the corresponding port when testing, which has high commissioning efficiency and saves manpower.

Description

A test system for switching power supply module in power system

technical field

The utility model relates to a test system for a switching power supply module of a power system, which belongs to the technical field of power systems. the

Background technique

Battery pack DC operating power supply: composed of a battery pack and a charging device. During normal operation, the charging device supplies power to the control load, and at the same time charges the battery pack to make it in a fully charged state; when an accident occurs in the power station, the battery pack continues to supply power to the DC control and power load. It is a power system that can guarantee reliable power supply under various normal and accident conditions, and is widely used in various types of power plants and substations. The battery pack DC operating power supply system has a long history of application and is extremely extensive. The DC operating power system in the modern sense is this kind of DC uninterruptible power system composed of battery packs and charging devices, usually referred to as DC operating power system or DC system for short. the

The power system switching power supply module is a switching power supply module that constitutes a charging device for a DC operating power supply system. The switching power supply module of the power system must undergo a comprehensive test before leaving the factory to provide guarantee for the long-term reliable operation of the site. The traditional commissioning method is mostly manual operation of various instrumentation equipment, which requires manual testing of the main circuit and test of each device to be tested. The circuit is connected, the manual operation is complicated, and even requires multiple people to operate, which is not efficient and wastes manpower. the

Utility model content

The purpose of the utility model is to provide a testing system for a switching power supply module of an electric power system, so as to solve the problems of low test efficiency and waste of manpower in the current switching power supply module testing process. the

In order to solve the above technical problems, the utility model provides a test system for a switching power supply module in a power system. The measuring unit is respectively connected with the electronic load unit, the voltage source, the digital input and output unit and the analog measuring instrument, and the electronic load unit, the voltage source, the digital input and output unit and the analog measuring instrument are respectively connected with the Corresponding port connections of the switching power supply module to be tested are used to provide the switching power supply module to be tested with electrical conditions for commissioning and to collect electrical parameters from the switching power supply module to be tested. the

The test system is provided with an electronic load connection port, a voltage source power supply port, a digital input and output port, and an analog acquisition port, which are respectively connected with the electronic load unit, the voltage source, and the digital input and output unit in the test system. It is connected to an analog measuring instrument, the electronic load connection port is used to connect to the output terminal of the switching power supply module to be tested, and the voltage source power supply port is used to be connected to the power supply terminal of the switching power supply module to be tested. the

The commissioning unit is an industrial computer. the

The voltage source is a program-controlled DC voltage source, the electronic load unit is a program-controlled DC electronic load unit, and the analog measuring instrument is a program-controlled measuring instrument. the

The commissioning unit is also connected to a host computer through communication. the

The beneficial effects of the present utility model are: the test system of the present utility model includes a commissioning unit, a digital input and output unit, an analog measuring instrument, an electronic load unit and a voltage source, and the test system is provided with corresponding When testing, you only need to connect the switching power supply module to be tested to the corresponding port, use the debugging unit to adjust the electronic load unit and the voltage source, provide the electrical conditions for the device to be tested, and at the same time collect the The electrical parameters of the switching power supply module are used to judge the status of the switching power supply module under test. Therefore, the test system only needs to connect the switching power supply module to the corresponding port when testing, which has high commissioning efficiency and saves manpower. the

Description of drawings

Fig. 1 is a schematic structural diagram of a test system of a power system switching power supply module of the present utility model;

Fig. 2 is the main circuit schematic diagram of the test of power system switching power supply module of the present utility model;

Fig. 3 is a test flow chart of the test system of the power system switching power supply module of the present invention. the

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further. the

As shown in Figure 1, the test system of the power system switching power supply module of the present invention includes a commissioning unit, a digital input and output unit, an analog measuring instrument, an electronic load unit as a switching power supply module to be tested, and a The switching power supply module provides the voltage source of the power supply. The commissioning unit is respectively connected with the digital input and output unit, the analog measuring instrument, the electronic load unit and the voltage source. The test system is equipped with an electronic load connection port and a voltage source power supply port. , digital input and output ports and analog acquisition ports are respectively connected to the electronic load unit, voltage source, digital input and output unit and analog measuring instrument in the test system. The switching power supply module to be tested is equipped with an analog The output port, the digital input and output port, the power supply port and the output port are respectively connected with the analog acquisition port, the digital input and output port, the voltage source power supply port and the load connection port in the test system. the

The commissioning unit is used to coordinate and control various test equipment, adjust the electronic load unit and voltage source according to the project to be tested, provide the electrical conditions for commissioning and testing of the device to be tested, and collect electrical parameters from the device to be tested. After corresponding processing, the output Test results and records for future reference. Among them, the digital input and output unit is connected into a loop with the input and output of the switching power supply module to be tested, and provides analog input signals for the switching power supply module to be tested and collects the output signals of the device under test. Here, the output signal It mainly refers to the charging state of the switching power supply module to be tested. The measuring instrument is connected to the input and output analog terminals of the switching power supply module to be tested, and the analog quantity and analog quantity characteristics of the switching power supply module to be tested are measured, mainly to measure the power supply module to be tested. Power supply voltage, current and ripple factor, the voltage source provides power for the switching power supply module to be tested, and the commissioning unit adjusts different power characteristics according to the item to be tested; the electronic load is the load of the device to be tested, and is tested by the tester The unit adjusts different load characteristics, and the whole test system is also communicated with the switching power supply module to be tested, which is used to control the power tube in the switching power supply module, thereby adjusting the output of the power supply module to meet the test requirements. the

The commissioning unit here is an industrial computer, on which there is a graphical automated commissioning platform (the realization of the functions of this platform belongs to conventional technical means), which has parameters configuration of the switching power supply module to be tested, data storage of commissioning results, commissioning Personnel login management, data report output and other functions, the voltage source is a program-controlled DC voltage source, the electronic load unit is a program-controlled DC electronic load unit, the analog measuring instrument is a program-controlled measuring instrument, and the industrial computer communicates with the program-controlled AC and DC voltage through a communication line. Sources, program-controlled DC electronic loads, digital input and output modules, program-controlled measuring instruments, etc., and perform control and information collection. The system can work in a stand-alone or networked state. In the networked state, the test results of multiple systems can be summarized through the host computer server. the

The test main circuit of the test system is shown in Figure 2. The output terminal of the switching power supply module to be tested is connected to the connection port of the electronic load unit, and the power supply terminal of the switching power supply module to be tested is connected to the power supply port of the voltage source. The output end is connected with the electronic load unit and the control end of the voltage source. The test process of the test system of the switching power supply module of the above-mentioned power system is shown in Figure 3, and specifically includes the following steps: according to the different types of the device to be tested, the corresponding test parameters can be configured; enter the test function page; select the model of the device to be tested, The test system automatically transfers the test parameters and test item list of the corresponding model; select the automatic test to enter the automatic test process; select the auxiliary test to enter the auxiliary test process; select the option test to enter the single free test process; after the test is completed, output the test report; When a fault is detected, report the fault point; all test items are completed, and the test results are saved. the

Claims (5)

1. A test system for a switching power supply module in a power system, characterized in that the test system includes a test unit, an electronic load unit, a voltage source, a digital input and output unit and an analog measuring instrument, and the test unit is connected with the test unit respectively The electronic load unit, the voltage source, the digital input and output unit are connected to the analog measuring instrument, and the electronic load unit, the voltage source, the digital input and output unit and the analog measuring instrument are respectively connected to the switching power supply module to be tested The corresponding port connection is used to provide the switching power supply module under test with electrical conditions for commissioning and to collect electrical parameters from the switching power supply module under test. the 2. the test system of power system switching power supply module according to claim 1, is characterized in that, described test system is provided with electronic load connection port, voltage source power supply port, digital quantity input and output port and analog quantity The collection ports are respectively connected to the electronic load unit, the voltage source, the digital input and output unit and the analog measuring instrument in the test system. The electronic load connection port is used to be connected to the output terminal of the switching power supply module to be tested. The power supply port of the voltage source described above is used to connect with the power supply terminal of the switching power supply module to be tested. the 3. The test system for switching power supply modules in power systems according to claim 2, wherein the commissioning unit is an industrial computer. the 4. The test system of the power system switching power supply module according to claim 3, wherein the voltage source is a program-controlled DC voltage source, the electronic load unit is a program-controlled DC electronic load unit, and the analog measuring instrument It is a program-controlled measuring instrument. the 5 . The test system for a switching power supply module in a power system according to claim 4 , wherein the commissioning unit is also connected to a host computer through communication. 5 . the