CN105375784A - Power output control system - Google Patents
Power output control system Download PDFInfo
- Publication number
- CN105375784A CN105375784A CN201510902726.9A CN201510902726A CN105375784A CN 105375784 A CN105375784 A CN 105375784A CN 201510902726 A CN201510902726 A CN 201510902726A CN 105375784 A CN105375784 A CN 105375784A
- Authority
- CN
- China
- Prior art keywords
- voltage
- output
- cabinet
- input
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000007858 starting material Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
- H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
- H02M5/10—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers
- H02M5/12—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of voltage or current amplitude only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
- Inverter Devices (AREA)
Abstract
Description
技术领域technical field
本发明涉及电子测控技术领域，尤其涉及一种用于控制电源输出量的电源输出控制系统。The invention relates to the technical field of electronic measurement and control, in particular to a power output control system for controlling the output of a power supply.
背景技术Background technique
空调测试台电源是为被测压缩机机组提供测试用电源，用于启动及运行规定电压及容量的压缩机。由于不同的压缩机，要求输入的电压不尽相同，对于部分要求输入电压较高的压缩机，难以找到适用的电源。The power supply of the air conditioner test bench is to provide the test power for the compressor unit under test, which is used to start and operate the compressor with the specified voltage and capacity. Because different compressors require different input voltages, it is difficult to find a suitable power supply for some compressors that require higher input voltages.
发明内容Contents of the invention
本发明的目的在于提供一种能够输出多种档位电压，且功能稳定的电源输出控制系统。The purpose of the present invention is to provide a power supply output control system capable of outputting various gear voltages and having stable functions.
为了实现上述目的，本发明一种电源输出控制系统，包括电源子系统、操作子系统、控制子系统和显示子系统；In order to achieve the above object, a power output control system of the present invention includes a power supply subsystem, an operation subsystem, a control subsystem and a display subsystem;
电源子系统、操作子系统、显示子系统分别与控制子系统相连接；The power supply subsystem, operating subsystem, and display subsystem are respectively connected with the control subsystem;
电源子系统包括输出单元；输出单元输出的电压在380V至11KV的区间内设有N个电压档；N为大于或等于2的整数；The power supply subsystem includes an output unit; the output voltage of the output unit has N voltage levels in the range of 380V to 11KV; N is an integer greater than or equal to 2;
操作子系统设有N个用于设定输出电压档的开关；开关与电压档一一对应；其中一个开关闭合后，其余开关均被锁定，无法闭合；The operating subsystem is equipped with N switches for setting the output voltage range; the switches correspond to the voltage range one by one; when one of the switches is closed, the rest of the switches are locked and cannot be closed;
控制子系统用于：The control subsystem is used to:
控制开关的开/闭以及锁定；Open/close and lock of control switch;
根据指定的电压档控制输出单元实际输出的电压值；Control the actual output voltage value of the output unit according to the specified voltage file;
控制显示子系统显示出输出电压值。The control display subsystem displays the output voltage value.
作为优选的，输出单元设有13个电压档；Preferably, the output unit is provided with 13 voltage levels;
13个电压档分别对应380V、400V、415V、460V、575V、600V、3KV、3.3KV、4160V、6KV、6.6KV、10KV和11KV的输出电压。The 13 voltage levels correspond to the output voltages of 380V, 400V, 415V, 460V, 575V, 600V, 3KV, 3.3KV, 4160V, 6KV, 6.6KV, 10KV and 11KV respectively.
作为优选的，输出电压的静态稳压精度为±2％。Preferably, the static voltage regulation accuracy of the output voltage is ±2%.
作为优选的，操作子系统包括位于近端操作组件和远端操作组件；近端操作组件与远端操作组件相互锁联。Preferably, the operating subsystem includes a proximal operating component and a distal operating component; the proximal operating component and the distal operating component are interlocked.
作为优选的，电源子系统包括高压负荷柜、有载调压器、第一高压柜、第二高压柜、第三高压柜、第四高压柜、第五高压柜、第六高压柜、第七高压柜、第八高压柜、第一干式变压器、第二干式变压器、10KV启动柜、中压启动柜、第一低压柜、第二低压柜、低压启动柜；Preferably, the power subsystem includes a high-voltage load cabinet, an on-load voltage regulator, a first high-voltage cabinet, a second high-voltage cabinet, a third high-voltage cabinet, a fourth high-voltage cabinet, a fifth high-voltage cabinet, a sixth high-voltage cabinet, a seventh High-voltage cabinet, eighth high-voltage cabinet, first dry-type transformer, second dry-type transformer, 10KV starter cabinet, medium-voltage starter cabinet, first low-voltage cabinet, second low-voltage cabinet, low-voltage starter cabinet;
高压负荷柜的输入端连接电源输入端，输出端与有载调压器的输入端相连接；有载调压器的输出端分别与第一高压柜、第二高压柜、第三高压柜的输入端相连接，第一高压柜的输出端与第一干式变压器的输入端相连接，第一干式变压器的升压输出端与第四高压柜的输入端相连接，第四高压柜的输出端与10KV启动柜的输入端相连接；10KV启动柜的输出端与外部待测设备相连接；第一干式变压器的降压端与第五高压柜的输入端相连接，第二高压柜的输出端与第六高压柜的输入端相连接；第七高压柜的输入端与第八高压柜的输入端相连接，中压启动柜的输入端分别与第五高压柜、第六高压柜、第七高压柜的输出端相连接，第八高压柜的输出端与中压启动柜的输出端分别与外部待测设备相连接；第三高压柜的输出端与第二干式变压器的输入端相连接，第二干式变压器的输出端与第一低压柜的输入端相连接，第一低压柜的第一输出端与低压启动柜的输入端相连接，低压启动柜的输出端与外部待测设备相连接；第一低压柜的第二输出端与第二低压柜的输入端相连接，第二低压柜的输出端与外部待测设备相连接。The input end of the high-voltage load cabinet is connected to the power input end, and the output end is connected to the input end of the on-load voltage regulator; the output end of the on-load voltage regulator is respectively connected to the first high-voltage cabinet, the second high-voltage cabinet, and the third high-voltage cabinet. The input terminals are connected, the output terminal of the first high-voltage cabinet is connected with the input terminal of the first dry-type transformer, the step-up output terminal of the first dry-type transformer is connected with the input terminal of the fourth high-voltage cabinet, and the output terminal of the fourth high-voltage cabinet The output terminal is connected to the input terminal of the 10KV starter cabinet; the output terminal of the 10KV starter cabinet is connected to the external equipment to be tested; the step-down terminal of the first dry-type transformer is connected to the input terminal of the fifth high-voltage cabinet, and the second high-voltage cabinet The output end of the high-voltage cabinet is connected to the input end of the sixth high-voltage cabinet; the input end of the seventh high-voltage cabinet is connected to the input end of the eighth high-voltage cabinet, and the input end of the medium-voltage starting cabinet is respectively connected to the fifth high-voltage cabinet and the sixth high-voltage cabinet , The output end of the seventh high-voltage cabinet is connected, the output end of the eighth high-voltage cabinet and the output end of the medium-voltage starting cabinet are respectively connected to the external equipment to be tested; the output end of the third high-voltage cabinet is connected to the input of the second dry-type transformer The output end of the second dry-type transformer is connected to the input end of the first low-voltage cabinet, the first output end of the first low-voltage cabinet is connected to the input end of the low-voltage starting cabinet, and the output end of the low-voltage starting cabinet is connected to the external The equipment to be tested is connected; the second output end of the first low-voltage cabinet is connected to the input end of the second low-voltage cabinet, and the output end of the second low-voltage cabinet is connected to the external equipment to be tested.
作为优选的，第一干式变压器的输入端输入6KV的交流电压；升压端输出10KV的交流电压，降压端输出3KV的交流电压。Preferably, the input terminal of the first dry-type transformer inputs an AC voltage of 6KV; the step-up terminal outputs an AC voltage of 10KV, and the step-down terminal outputs an AC voltage of 3KV.
作为优选的，第二干式变压器的输入端输入2KV至6KV之间的交流电压，输出端输出490V的交流电压。Preferably, the input terminal of the second dry-type transformer inputs an AC voltage between 2KV and 6KV, and the output terminal outputs an AC voltage of 490V.
作为优选的，控制子系统包括控制子系统电源；控制子系统电源包括交流变压器、滤波器、交流-直流转换器；Preferably, the control subsystem includes a control subsystem power supply; the control subsystem power supply includes an AC transformer, a filter, and an AC-DC converter;
交流变压器的输入端与市电相连接，输出端与滤波器的信号输入端和电源输入端相连接；滤波器的信号输出端与交流-直流转换器的输入端相连接，交流-直流转换器的输出端为外部设备提供直流电源。The input end of the AC transformer is connected to the mains, the output end is connected to the signal input end of the filter and the power input end; the signal output end of the filter is connected to the input end of the AC-DC converter, and the AC-DC converter The output terminal provides DC power for external devices.
本发明提供的电源输出控制系统，不仅能够有多个档位的电压输出效果，还具备保护、联锁、报警、显示功能，通过集中控制柜中的设置和触摸屏的使用为整个系统的各个控制柜提供相应的高、中、低电源。实际应用表明，系统运行可靠、操作稳定，符合客户要求，具有可行性。The power supply output control system provided by the present invention can not only have the voltage output effect of multiple gears, but also have the functions of protection, interlocking, alarm, and display. The cabinet provides corresponding high, medium and low power supplies. Practical application shows that the system is reliable and stable, meets customer requirements, and is feasible.
附图说明Description of drawings
图1为本发明一实施例中电源系统的主回路示意图。FIG. 1 is a schematic diagram of a main circuit of a power supply system in an embodiment of the present invention.
图2为本发明一实施例中集中控制柜的主回路示意图。Fig. 2 is a schematic diagram of the main circuit of the centralized control cabinet in an embodiment of the present invention.
图3为本发明一实施例中紧急停止程序图。Fig. 3 is a diagram of an emergency stop procedure in an embodiment of the present invention.
图4为本发明一实施例中连锁控制程序图。Fig. 4 is a diagram of the chain control procedure in an embodiment of the present invention.
图5为本发明一实施例中模拟量处理程序图。Fig. 5 is a diagram of an analog quantity processing procedure in an embodiment of the present invention.
具体实施方式detailed description
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明的各实施方式进行详细的阐述。In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
为解决上述技术问题，本发明的第一实施方式提供了一种电源输出控制系统，包括电源子系统、操作子系统、控制子系统和显示子系统；In order to solve the above technical problems, the first embodiment of the present invention provides a power output control system, including a power supply subsystem, an operation subsystem, a control subsystem and a display subsystem;
电源子系统、操作子系统、显示子系统分别与控制子系统相连接；The power supply subsystem, operating subsystem, and display subsystem are respectively connected with the control subsystem;
电源子系统包括输出单元；输出单元输出的电压在380V至11KV的区间内设有N个电压档；N为大于或等于2的整数；The power supply subsystem includes an output unit; the output voltage of the output unit has N voltage levels in the range of 380V to 11KV; N is an integer greater than or equal to 2;
操作子系统设有N个用于设定输出电压档的开关；开关与电压档一一对应；其中一个开关闭合后，其余开关均被锁定，无法闭合；The operating subsystem is equipped with N switches for setting the output voltage range; the switches correspond to the voltage range one by one; when one of the switches is closed, the rest of the switches are locked and cannot be closed;
控制子系统用于：The control subsystem is used to:
控制开关的开/闭以及锁定；Open/close and lock of control switch;
根据指定的电压档控制输出单元实际输出的电压值；Control the actual output voltage value of the output unit according to the specified voltage file;
控制显示子系统显示出输出电压值。The control display subsystem displays the output voltage value.
在本实施例中，电源子系统的电路图如图1所示，高压负荷柜的输入端连接电源输入端，输出端与有载调压器的输入端相连接；有载调压器的输出端分别与第一高压柜、第二高压柜、第三高压柜的输入端相连接，第一高压柜的输出端与第一干式变压器的输入端相连接，第一干式变压器的升压输出端与第四高压柜的输入端相连接，第四高压柜的输出端与10KV启动柜的输入端相连接；10KV启动柜的输出端与外部待测设备相连接；第一干式变压器的降压端与第五高压柜的输入端相连接，第二高压柜的输出端与第六高压柜的输入端相连接；第七高压柜的输入端与第八高压柜的输入端相连接，中压启动柜的输入端分别与第五高压柜、第六高压柜、第七高压柜的输出端相连接，第八高压柜的输出端与中压启动柜的输出端分别与外部待测设备相连接；第三高压柜的输出端与第二干式变压器的输入端相连接，第二干式变压器的输出端与第一低压柜的输入端相连接，第一低压柜的第一输出端与低压启动柜的输入端相连接，低压启动柜的输出端与外部待测设备相连接；第一低压柜的第二输出端与第二低压柜的输入端相连接，第二低压柜的输出端与外部待测设备相连接。In this embodiment, the circuit diagram of the power supply subsystem is shown in Figure 1. The input end of the high-voltage load cabinet is connected to the power input end, and the output end is connected to the input end of the on-load voltage regulator; the output end of the on-load voltage regulator Connect to the input terminals of the first high-voltage cabinet, the second high-voltage cabinet and the third high-voltage cabinet respectively, the output terminal of the first high-voltage cabinet is connected to the input terminal of the first dry-type transformer, and the step-up output of the first dry-type transformer connected to the input terminal of the fourth high-voltage cabinet, and the output terminal of the fourth high-voltage cabinet is connected to the input terminal of the 10KV starter cabinet; the output terminal of the 10KV starter cabinet is connected to the external equipment to be tested; The pressure end is connected to the input end of the fifth high-voltage cabinet, the output end of the second high-voltage cabinet is connected to the input end of the sixth high-voltage cabinet; the input end of the seventh high-voltage cabinet is connected to the input end of the eighth high-voltage cabinet, and the middle The input ends of the high-voltage starting cabinets are respectively connected to the output ends of the fifth high-voltage cabinet, the sixth high-voltage cabinet, and the seventh high-voltage cabinet, and the output ends of the eighth high-voltage cabinet and the output ends of the medium-voltage starting cabinet are respectively connected to the external equipment to be tested. connection; the output end of the third high-voltage cabinet is connected to the input end of the second dry-type transformer, the output end of the second dry-type transformer is connected to the input end of the first low-voltage cabinet, and the first output end of the first low-voltage cabinet is connected to the input end of the first low-voltage cabinet. The input terminal of the low-voltage starting cabinet is connected, and the output terminal of the low-voltage starting cabinet is connected with the external equipment to be tested; the second output terminal of the first low-voltage cabinet is connected with the input terminal of the second low-voltage cabinet, and the output terminal of the second low-voltage cabinet Connect with external device under test.
其中，第一干式变压器的输入端输入6KV的交流电压，升压端输出10KV的交流电压，降压端输出3KV的交流电压；第二干式变压器的输入端输入2KV至6KV之间的交流电压，输出端输出490V的交流电压。Among them, the input terminal of the first dry-type transformer inputs an AC voltage of 6KV, the boost terminal outputs an AC voltage of 10KV, and the step-down terminal outputs an AC voltage of 3KV; the input terminal of the second dry-type transformer inputs an AC voltage between 2KV and 6KV. Voltage, the output terminal outputs 490V AC voltage.
在本实施例中，电源系统主回路的技术参数及要求下表所示：In this embodiment, the technical parameters and requirements of the main circuit of the power supply system are shown in the following table:
在本实施例中，以10-11KVA电压系统控制为例，1)操作“10kV-11kV高压柜1断路器合闸”按钮,该回路的电压显示表就会有显示，同时显示屏也有电压显示，显示的电压小于选择的电压，因为系统停止后调压器会自动复位。2)操作“调压器升压”，“调压器降压”按钮，调节调压器的输出电压，使系统电压输出达到被测试系统的电压要求。3)操作“高压柜4断路器合闸”，被测系统得电，同时确认电源系统正常。In this embodiment, taking the control of the 10-11KVA voltage system as an example, 1) operate the "10kV-11kV high voltage cabinet 1 circuit breaker close" button, the voltage display meter of the circuit will be displayed, and the display screen will also display the voltage , the displayed voltage is less than the selected voltage because the voltage regulator is automatically reset after the system stops. 2) Operate the "Voltage Regulator Step Up" and "Voltage Regulator Step Down" buttons to adjust the output voltage of the voltage regulator so that the system voltage output meets the voltage requirements of the system under test. 3) Operate "high voltage cabinet 4 circuit breaker close", the system under test is powered on, and at the same time confirm that the power system is normal.
所有电源系统断电，每个相应的电源系统都设置了“输出停止”按钮，操作停止按钮该电压系统回路中的断路器逐个分断，直至负荷柜II断路器VD4分闸，所有断路器分闸间隔时间三秒。系统在低压柜1-I上和集中控制柜设置紧急按钮，操作急停按钮系统中所有断路器同时分闸。All power systems are powered off, and each corresponding power system is equipped with an "output stop" button, and the circuit breakers in the circuit of the voltage system are opened one by one by operating the stop button until the circuit breaker VD4 of the load cabinet II is opened, and all circuit breakers are opened interval of three seconds. The system sets emergency buttons on the low-voltage cabinet 1-I and the centralized control cabinet, and all circuit breakers in the system are opened at the same time by operating the emergency stop button.
在本实施例中，本操作系统具有就地独立操作及远程操作二种操作方法。二种操作系统通过互相联锁，使操作系统操作稳定、可靠、灵活、简便。一般情况下，采用远程操作方式(在控制室集中控制柜上操作)，一旦该操作方式出现故障则可采用就地独立操作，这样可不影响正常生产，以确保生产的正常性。In this embodiment, the operating system has two operating methods: local independent operation and remote operation. The two operating systems are interlocked to make the operation of the operating system stable, reliable, flexible and convenient. In general, the remote operation method (operated on the centralized control cabinet in the control room) is adopted. Once the operation method fails, it can be operated independently on the spot, so that the normal production will not be affected, so as to ensure the normality of production.
在本实施例中，远程操作方式是采用PLC集中控制，操作方式的特点是安全、灵活、方便。远程操作方式如下：1)用户先根据本系统操作说明，在集中控制柜上选择相应的电压，接着逐级点击该电压等级下的相应按钮吸合相应的断路器，在PLC控制下，已经做好低压、中压、高压开关柜的联锁，某一种电压等级被选中后，其他电压等级的开关柜被锁定无法吸合，用户如有误操作的情况，系统也会自动拒绝。2)在集中控制柜上通过电压调节按钮和数显电压表，升降微调电压以达到所需的输出电压，当条件满足时用户可进行下一步操作输出电压到使用方启动柜。3)使用完毕以后，用户可通过关闭断路器而使用整个系统的供电全部切断，即使再想使用这一等级的电压也需再按操作步骤1)、2)重新送电。In this embodiment, the remote operation mode adopts PLC centralized control, and the characteristics of the operation mode are safety, flexibility and convenience. The remote operation method is as follows: 1) The user first selects the corresponding voltage on the centralized control cabinet according to the operating instructions of this system, and then clicks the corresponding button under the voltage level to attract the corresponding circuit breaker step by step. For the interlocking of low-voltage, medium-voltage, and high-voltage switchgears, after a certain voltage level is selected, the switchgears of other voltage levels are locked and cannot be closed. If the user makes a wrong operation, the system will automatically reject it. 2) On the centralized control cabinet, use the voltage adjustment button and the digital display voltmeter to adjust the voltage up and down to achieve the required output voltage. When the conditions are met, the user can proceed to the next step to output the voltage to the starting cabinet of the user. 3) After use, the user can cut off the power supply of the entire system by turning off the circuit breaker. Even if you want to use this level of voltage again, you need to follow the steps 1) and 2) to re-send the power.
就地操作方式是在远程操作发生故障时采用的应急方式，在开关柜本体进行操作，这个方式的特点是安全可靠。每个开关柜设有就地/远程转换按钮，使就地操作和远程操作不会冲突。The local operation mode is an emergency mode adopted when the remote operation fails, and the operation is performed on the switchgear body. This mode is characterized by safety and reliability. Each switch cabinet is equipped with a local/remote conversion button, so that local operation and remote operation will not conflict.
在本实施例中，操作子系统包括集中控制柜，该集中控制柜的电路图如图2所示，220V的电压通过断路器1QF1,通过变压器T1的变压有220V转换为110V电压经过断路器1QF2后为滤波器，PLC,频率表及电压显示表提供电源。110V电压进过滤波器的滤波再经过直流电源装置为触摸屏提供24V的直流电压。In this embodiment, the operation subsystem includes a centralized control cabinet. The circuit diagram of the centralized control cabinet is shown in Figure 2. The 220V voltage passes through the circuit breaker 1QF1, and the voltage of 220V is converted to 110V through the circuit breaker 1QF2 through the transformation of the transformer T1. Finally, it provides power for the filter, PLC, frequency meter and voltage display meter. The 110V voltage enters the filtering of the filter and then provides 24V DC voltage for the touch screen through the DC power supply device.
高压负荷柜配备电压互感器把380V的电压转换为100V的电压信号，进线频率表采集0～100V电压信号，在表盘上显示出进线端的频率。在高压负荷柜加3个电压表(量程12000V)，AB、BC、CA相间，加一个4-20mA变送器，电压显示表即可显示出进线电压，同时把此时电压信号转换成PLC的模拟信号输入到PLC的输入模块。The high-voltage load cabinet is equipped with a voltage transformer to convert the 380V voltage into a 100V voltage signal. The incoming line frequency meter collects the 0-100V voltage signal and displays the frequency of the incoming line terminal on the dial. Add 3 voltmeters (range 12000V) to the high-voltage load cabinet, and add a 4-20mA transmitter between AB, BC, and CA phases. The voltage display table can display the incoming line voltage, and at the same time convert the voltage signal into PLC. The analog signal is input to the PLC input module.
当不同的等级的电压输出时，电压显示表此时都会显示，同时PLC接收输入的模拟量时，PLC经过处理，与其相连的触摸屏会相应的显示出此时的电压等级。When different levels of voltage are output, the voltage display table will display at this time, and when the PLC receives the input analog value, the PLC will process it, and the touch screen connected to it will display the corresponding voltage level at this time.
在本实施例中，控制子系统主要包括PLC模块，PLC共包括CPU216(I0.0-I2.7Q0.0-Q1.7),EM221CN(I3.0-14.7),EM221CN(15.0-I6.7)EM221CN(18.0-I8.7)3个数字量输入模块，EM223CN(I7.0-I7.7/Q2.0-Q2.7)一个数字量输入、输出混合模块，EM221CN(Q3.0-Q3.7)一个数字量输出模块，EM231CN(AI0-AI3)EM231CN(AI4-AI7)2个模拟量输入模块。In this embodiment, the control subsystem mainly includes PLC modules, and the PLC includes CPU216 (I0.0-I2.7Q0.0-Q1.7), EM221CN (I3.0-14.7), EM221CN (15.0-I6.7 ) EM221CN (18.0-I8.7) 3 digital input modules, EM223CN (I7.0-I7.7/Q2.0-Q2.7) a digital input and output mixed module, EM221CN (Q3.0-Q3 .7) One digital output module, EM231CN (AI0-AI3) EM231CN (AI4-AI7) two analog input modules.
CPU216输入信号为按钮SB1-SB24的开关信号，EM221-2(I5.0-I6.7)16点数字输入及EM223、221-3，主要是高压柜7，低压柜断路器1、2，负荷柜1，低压柜2分闸，合闸位置信号，油浸调压器升压及降压，干变1、2高温报警跳闸，低压柜1-1故障跳闸报警，低压柜1-1故障跳闸报警。The input signal of CPU216 is the switch signal of button SB1-SB24, EM221-2 (I5.0-I6.7) 16-point digital input and EM223, 221-3, mainly high-voltage cabinet 7, low-voltage cabinet circuit breaker 1, 2, load Cabinet 1, low-voltage cabinet 2 opening, closing position signal, oil-immersed voltage regulator step-up and step-down, dry transformer 1, 2 high temperature alarm trip, low-voltage cabinet 1-1 fault trip alarm, low-voltage cabinet 1-1 fault trip Call the police.
M231-1、EM231-2模拟量输入，是来自各个控制柜进线电压及进线电流，通过显示仪表采集的4-20mA的输入信号。The analog input of M231-1 and EM231-2 is the 4-20mA input signal collected from the incoming line voltage and incoming line current of each control cabinet through the display instrument.
EM2228点数字量输出，主要是负荷柜1的分闸动作的继电器线圈的输出。EM2228 point digital output is mainly the output of the relay coil for the opening action of load cabinet 1.
在本实施例中，远程操作都是通过PLC集中控制来实现的，根据系统控制要求以及PLC控制电路设置来设计控制程序。现就保护控制、联锁控制、模拟量转换这几段程序来进行分析。In this embodiment, the remote operation is realized through PLC centralized control, and the control program is designed according to system control requirements and PLC control circuit settings. Now analyze the procedures of protection control, interlock control and analog quantity conversion.
线路上的断路器应具有以下保护功能：短路保护、过载保护、缺相保护。另外集中控制台有紧急停止按钮，在紧急情况下按下紧急停止按钮，整套系统主回路立即断开，以保护在紧急状况下人身和设备的安全，其PLC程序如图3所示。The circuit breaker on the line should have the following protection functions: short circuit protection, overload protection, phase loss protection. In addition, the centralized console has an emergency stop button. Press the emergency stop button in an emergency, and the main circuit of the entire system will be disconnected immediately to protect the safety of the person and equipment in an emergency. The PLC program is shown in Figure 3.
当某一等级电压输出时，其余电压等级一律锁定，不能操作，以保证输出电压等级的正确性和唯一性；每台高压开关柜，当箱柜体门打开时，该柜应立即断电；每种操作方式之间相互联锁，使各种操作系统在使用中互不干扰。其PLC程序如图4所示。When a certain level of voltage is output, the other voltage levels are all locked and cannot be operated to ensure the correctness and uniqueness of the output voltage level; for each high-voltage switchgear, when the door of the cabinet body is opened, the cabinet should be powered off immediately; Each mode of operation is interlocked with each other, so that various operating systems do not interfere with each other in use. Its PLC program is shown in Figure 4.
PLC接受模拟量后，经过处理，实现A/D转换，触摸屏上会显示电压值，以高压柜5进线电压为例进行分析，其程序如图5所示。After the PLC receives the analog quantity, it processes it to realize A/D conversion, and the voltage value will be displayed on the touch screen. Taking the incoming line voltage of the high-voltage cabinet 5 as an example for analysis, the program is shown in Figure 5.
在西门子中，整型数据不能直接被转换成浮点数，因此必须经过以下步骤转换。首先高压柜5进线电压数据以DINT数据类型被存放入到VD8中，然后为了提升计算精度，使用DI_R将VD8中的数据转换成浮点数，In Siemens, integer data cannot be directly converted into floating point numbers, so the following steps must be converted. First, the incoming line voltage data of the high-voltage cabinet 5 is stored in VD8 in DINT data type, and then in order to improve the calculation accuracy, use DI_R to convert the data in VD8 into floating point numbers,
相对于0～20mA的信号，西门子S7-200的采集数据是0～32000，即每mA对应的数据为1600，因此相对于本系统采集的信号4～20mA,西门子S7-200的采集数据就是6400～32000。因此4～20mA对应的输入范围为32000-6400＝25600，所以输入值需要除以(DIV_R)25600才能得到其占用整个范围的百分比，Compared with the signal of 0~20mA, the collected data of Siemens S7-200 is 0~32000, that is, the data corresponding to each mA is 1600, so compared with the signal collected by this system of 4~20mA, the collected data of Siemens S7-200 is 6400 ~32000. Therefore, the input range corresponding to 4～20mA is 32000-6400＝25600, so the input value needs to be divided by (DIV_R)25600 to get the percentage of the entire range.
西门子200是通过坐标移动来进行4～20mA的信号采集，西门子200本来所对应的采集信号为0～20mA，那么4mA所占据的范围为4/16＝0.25,也就是4～20mA所占据的量程范围为0.25～1，因此要将输入值-0.25来完成坐标的移动。VD20-0.25后再乘以(MUL_R)10000,就得到了0-10000之间的电压值。Siemens 200 collects 4-20mA signals through coordinate movement. Originally, the corresponding acquisition signal of Siemens 200 is 0-20mA, so the range occupied by 4mA is 4/16=0.25, that is, the range occupied by 4-20mA The range is 0.25~1, so the input value -0.25 is required to complete the movement of the coordinates. Multiply VD20-0.25 by (MUL_R)10000 to get the voltage value between 0-10000.
由此可见，PLC程序通过线性变换将输入的模拟量信号对应的6400-32000之间的数据转换成0-10000之间的电压数据输出，触摸屏就会显示相对应的电压。It can be seen that the PLC program converts the data between 6400-32000 corresponding to the input analog signal into voltage data output between 0-10000 through linear transformation, and the touch screen will display the corresponding voltage.
上述各实施方式是实现本发明的具体实施例，本领域的普通技术人员可以理解，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本发明的精神和范围。The above-mentioned implementation modes are specific examples for realizing the present invention, and those skilled in the art can understand that in practical applications, various changes can be made to it in form and details without departing from the spirit and spirit of the present invention. scope.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510902726.9A CN105375784B (en) | 2015-12-09 | 2015-12-09 | Power output control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510902726.9A CN105375784B (en) | 2015-12-09 | 2015-12-09 | Power output control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105375784A true CN105375784A (en) | 2016-03-02 |
| CN105375784B CN105375784B (en) | 2018-04-27 |
Family
ID=55377668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510902726.9A Active CN105375784B (en) | 2015-12-09 | 2015-12-09 | Power output control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105375784B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230267A (en) * | 2016-08-29 | 2016-12-14 | 深圳供电局有限公司 | Movable integrated test power supply device |
| EP3888214A4 (en) * | 2018-11-28 | 2022-07-27 | Hitachi Energy Switzerland AG | MODULARIZED CONNECTION DEVICE AND SYSTEM THEREOF |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001202555A (en) * | 2000-01-21 | 2001-07-27 | Akira Kumagai | Automatic vending machine power supply for energy saving |
| CN2912021Y (en) * | 2006-03-30 | 2007-06-13 | 程涛 | Energy saving prefabricating transformer substation |
| CN201450454U (en) * | 2009-07-14 | 2010-05-05 | 黄挺 | Power adapter with adjustable output voltage |
| CN201577033U (en) * | 2009-11-30 | 2010-09-08 | 宁波中荣声学科技有限公司 | Automatic voltage switching circuit |
| CN201918904U (en) * | 2010-12-30 | 2011-08-03 | 易事特电力系统技术有限公司 | Using transformer taps in series and parallel to realize different voltage output circuits |
| CN102647093A (en) * | 2012-05-02 | 2012-08-22 | 广西柳州特种变压器有限责任公司 | Novel dual power on-load voltage regulation rectifier transformer |
| CN205430068U (en) * | 2015-12-09 | 2016-08-03 | 苏州工业职业技术学院 | Power output control system |
-
2015
- 2015-12-09 CN CN201510902726.9A patent/CN105375784B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001202555A (en) * | 2000-01-21 | 2001-07-27 | Akira Kumagai | Automatic vending machine power supply for energy saving |
| CN2912021Y (en) * | 2006-03-30 | 2007-06-13 | 程涛 | Energy saving prefabricating transformer substation |
| CN201450454U (en) * | 2009-07-14 | 2010-05-05 | 黄挺 | Power adapter with adjustable output voltage |
| CN201577033U (en) * | 2009-11-30 | 2010-09-08 | 宁波中荣声学科技有限公司 | Automatic voltage switching circuit |
| CN201918904U (en) * | 2010-12-30 | 2011-08-03 | 易事特电力系统技术有限公司 | Using transformer taps in series and parallel to realize different voltage output circuits |
| CN102647093A (en) * | 2012-05-02 | 2012-08-22 | 广西柳州特种变压器有限责任公司 | Novel dual power on-load voltage regulation rectifier transformer |
| CN205430068U (en) * | 2015-12-09 | 2016-08-03 | 苏州工业职业技术学院 | Power output control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230267A (en) * | 2016-08-29 | 2016-12-14 | 深圳供电局有限公司 | Movable integrated test power supply device |
| EP3888214A4 (en) * | 2018-11-28 | 2022-07-27 | Hitachi Energy Switzerland AG | MODULARIZED CONNECTION DEVICE AND SYSTEM THEREOF |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105375784B (en) | 2018-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111679144B (en) | Integrated intelligent comprehensive testing system for transformer | |
| CN106646209B (en) | Intelligent testing equipment for high-temperature and low-temperature tripping of charge control circuit breaker | |
| CN101344552B (en) | High voltage power grid comprehensive protector tester | |
| CN204536484U (en) | Integration insulation, pressure resistant testing device | |
| CN102901891B (en) | Flexible simulation test platform for electric power system transformer protection devices | |
| WO2023116650A1 (en) | Intelligent testing system and method for safety parameters of mine explosion-proof electrical apparatus | |
| CN102590717B (en) | GIS withstand voltage test method | |
| CN101769968B (en) | Mutual inductor no-load voltage ratio tester | |
| CN105375784B (en) | Power output control system | |
| CN205430068U (en) | Power output control system | |
| CN203745563U (en) | Low-voltage switchgear electrical performance integrated testing stand | |
| CN107912059A (en) | The switching device operating method of switching device, test device and transformer measuring device | |
| CN104267369B (en) | Separation achieving method for single-phase-three-phase electric energy meter compatible calibration voltage system | |
| CN110441665A (en) | In situ DC pressure resistance and local discharge test device for ± 500kV converter station | |
| CN206147065U (en) | Motor test system | |
| CN214750621U (en) | Control system of test cabinet | |
| KR20090019442A (en) | Automatic voltage regulator for parallel operation of peripheral pressure and method | |
| CN213181730U (en) | Electronic voltage sensor with three-way output | |
| CN201637807U (en) | Power frequency leakage current tester | |
| JP2012034570A (en) | Method and apparatus for use in monitoring operation of electrical switchgear | |
| CN104360120B (en) | Real-time waveform display method with low communication bandwidth requirement | |
| CN113092923A (en) | Control system of test cabinet | |
| CN103163347A (en) | Adjustable current transducer with high accuracy | |
| CN112542077A (en) | Nuclear phase teaching box | |
| RU59289U1 (en) | MICROPROCESSOR SYSTEM OF RELAY PROTECTION OF HIGH VOLTAGE LINES AND CONTROL OF A LINEAR CIRCUIT BREAKER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220119 Address after: 215125 No. 388 Ruoshui Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Suzhou hettec Intelligent Technology Co.,Ltd. Address before: No.1 Zhineng Avenue, Suzhou International Education Park, Suzhou, Jiangsu Province Patentee before: Suzhou Vocational Institute of Industrial Technology |