CN105227038A - A kind of electric motor drive system for workover treatment - Google Patents
A kind of electric motor drive system for workover treatment Download PDFInfo
- Publication number
- CN105227038A CN105227038A CN201510661562.5A CN201510661562A CN105227038A CN 105227038 A CN105227038 A CN 105227038A CN 201510661562 A CN201510661562 A CN 201510661562A CN 105227038 A CN105227038 A CN 105227038A
- Authority
- CN
- China
- Prior art keywords
- terminal
- converter
- supercapacitor
- bidirectional
- signal
- 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.)
- Pending
Links
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 36
- 239000003990 capacitor Substances 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Inverter Devices (AREA)
Abstract
一种用于修井作业的电动机驱动系统，其三相电源通过滤波电路A与可控整流器连接，可控整流器的整流输出端通过直流母线依次与滤波电路B和变频器连接，变频器的输出端与变频电动机的电源输入端连接，PLC控制器分别通过现场总线与超级电容控制器和可控整流器的控制输入端连接；双向DC-DC变换器的高压侧正极与可控整流器的整流输出端正极连接，双向DC-DC变换器的高压侧负极与可控整流器的整流输出端负极连接，双向DC-DC变换器的低压侧正极与超级电容模组的正极连接。本发明通过变频器驱动变频电动机，从而驱动绞车，变频电动机可实现正反转无级调速，具有启动力矩大、结构简单、节能环保、操控性好及维护费用低等特点。
A motor drive system for well workover operations, the three-phase power supply is connected to the controllable rectifier through the filter circuit A, the rectification output end of the controllable rectifier is connected to the filter circuit B and the frequency converter in turn through the DC bus, and the output of the frequency converter The terminal is connected to the power input terminal of the variable frequency motor, and the PLC controller is respectively connected to the control input terminal of the supercapacitor controller and the controllable rectifier through the field bus; the positive pole of the high voltage side of the bidirectional DC-DC converter is connected to the rectification output terminal of the controllable The negative pole of the high voltage side of the bidirectional DC-DC converter is connected to the negative pole of the rectified output terminal of the controllable rectifier, and the positive pole of the low voltage side of the bidirectional DC-DC converter is connected to the positive pole of the supercapacitor module. The invention drives a variable frequency motor through a frequency converter to drive a winch. The variable frequency motor can realize stepless forward and reverse speed regulation, and has the characteristics of large starting torque, simple structure, energy saving, environmental protection, good controllability and low maintenance cost.
Description
技术领域 technical field
本发明涉及修井作业领域，特别是涉及一种用于修井作业的电动机驱动系统。 The invention relates to the field of workover operations, in particular to a motor drive system for workover operations.
背景技术 Background technique
油田各型作业机目前普遍以柴油机为动力，柴油机工作效率仅为50%左右，不但能源浪费较为严重，作业成本高，而且还存在噪声污染等一系列环保问题。在当前国家大力推行清洁生产，实施环境评价的大环境下，有必要优化目前的作业机驱动方式，使油田企业作业施工环节更加节能环保。 At present, all types of operating machines in oilfields are generally powered by diesel engines, and the working efficiency of diesel engines is only about 50%. Not only is energy waste serious, operating costs are high, but there are also a series of environmental problems such as noise pollution. In the current environment where the country vigorously promotes clean production and implements environmental assessment, it is necessary to optimize the current drive mode of operating machines to make the operation and construction of oilfield enterprises more energy-saving and environmentally friendly.
目前普遍推行电力驱动作业机。电驱作业机是以电动机作为驱动动力、模块化设计的新型作业机。该作业机采用电机作为动力源，根据修井作业设备的技术要求，有必要将电动机、调速系统与作业操作控制系统有机整合，实现机、电、液一体化及智能自动化控制。在修井作业中，无论是提升作业还是下放作业，都需要有被吊物的装卸时间。通过现场调研统计，修井机提升和下放作业时间与装卸时间之比大约是1：2，电机将有66%左右时间处于空载或者低功率运行状态，电机功率利用率低，需要增加功率补偿装置。 At present, electric drive operating machines are generally implemented. The electric drive working machine is a new type of working machine with an electric motor as the driving power and a modular design. The work machine uses the motor as the power source. According to the technical requirements of the workover equipment, it is necessary to organically integrate the motor, the speed control system and the operation control system to realize the integration of machine, electricity and hydraulic and intelligent automatic control. In the workover operation, whether it is a lifting operation or a lowering operation, it is necessary to have a loading and unloading time for the hoisted objects. According to on-site investigation and statistics, the ratio of workover rig lifting and lowering operation time to loading and unloading time is about 1:2, and the motor will be in no-load or low-power operation state for about 66% of the time, and the power utilization rate of the motor is low, so power compensation needs to be increased device.
发明内容 Contents of the invention
本发明的目的在于提供一种用于修井作业的电动机驱动系统，以解决上述背景技术中提出的问题。 The purpose of the present invention is to provide a motor drive system for well workover operations to solve the problems raised in the above background technology.
为实现上述目的，本发明提供如下技术方案： To achieve the above object, the present invention provides the following technical solutions:
一种用于修井作业的电动机驱动系统，它包括滤波电路A、可控整流器、滤波电路B、变频器、双向DC-DC变换器、超级电容控制器、超级电容模组、PLC控制器和变频电动机。 A motor drive system for workover operations, which includes a filter circuit A, a controllable rectifier, a filter circuit B, a frequency converter, a bidirectional DC-DC converter, a supercapacitor controller, a supercapacitor module, a PLC controller and Frequency conversion motor.
三相电源通过滤波电路A与可控整流器的整流输入端连接，可控整流器的整流输出端通过直流母线依次与滤波电路B和变频器连接，变频器的输出端与变频电动机的电源输入端连接，变频电动机驱动绞车进行修井作业，PLC控制器分别通过现场总线与超级电容控制器和可控整流器的控制输入端连接。 The three-phase power supply is connected to the rectification input terminal of the controllable rectifier through the filter circuit A, the rectification output terminal of the controllable rectifier is connected to the filter circuit B and the frequency converter in turn through the DC bus, and the output terminal of the frequency converter is connected to the power supply input terminal of the variable frequency motor , the frequency conversion motor drives the drawworks to carry out workover operations, and the PLC controller is respectively connected to the control input ends of the supercapacitor controller and the controllable rectifier through the field bus.
双向DC-DC变换器的高压侧正极与可控整流器的整流输出端正极连接，双向DC-DC变换器的高压侧负极与可控整流器的整流输出端负极连接，双向DC-DC变换器的低压侧正极与超级电容模组的正极连接，双向DC-DC变换器的低压侧负极与超级电容模组的负极连接，超级电容模组的信号输出端与超级电容控制器的信号采集输入端连接，超级电容控制器的DC-DC控制输出端与双向DC-DC变换器的控制输入端连接。 The positive pole of the high voltage side of the bidirectional DC-DC converter is connected to the positive pole of the rectification output end of the controllable rectifier, the negative pole of the high voltage side of the bidirectional DC-DC converter is connected to the negative pole of the rectification output end of the controllable rectifier, and the low voltage side of the bidirectional DC-DC converter The positive pole of the side is connected to the positive pole of the supercapacitor module, the negative pole of the low-voltage side of the bidirectional DC-DC converter is connected to the negative pole of the supercapacitor module, and the signal output terminal of the supercapacitor module is connected to the signal acquisition input terminal of the supercapacitor controller. The DC-DC control output terminal of the supercapacitor controller is connected with the control input terminal of the bidirectional DC-DC converter.
优选的，所述超级电容控制器包括电容管理主板、电容管理从板和电流信号采集器。 Preferably, the super capacitor controller includes a capacitor management main board, a capacitor management slave board and a current signal collector.
优选的，电容管理主板通过CAN总线与电容管理从板连接，电容管理从板的电流检测端与电流信号采集器的信号输出端连接，电流信号采集器接在超级电容模组的负极端，电容管理从板的总电压/绝缘检测端与超级电容模组的正极端连接，电容管理从板的电容信息采集端通过信号端子与超级电容模组的信号输出端连接，电容管理从板的DC-DC控制输出端与双向DC-DC变换器的控制输入端连接。 Preferably, the capacitance management main board is connected with the capacitance management slave board through the CAN bus, and the current detection terminal of the capacitance management slave board is connected with the signal output end of the current signal collector, and the current signal collector is connected to the negative terminal of the supercapacitor module, and the capacitor The total voltage/insulation detection terminal of the management slave board is connected to the positive terminal of the supercapacitor module, the capacitance information collection terminal of the capacitance management slave board is connected to the signal output terminal of the supercapacitor module through the signal terminal, and the DC- The DC control output is connected to the control input of the bidirectional DC-DC converter.
优选的，所述电流信号采集器为电流传感器或分流器。 Preferably, the current signal collector is a current sensor or a shunt.
优选的，所述信号端子的电压信号输入端与超级电容模组的电压信号输出端连接，信号端子的过压信号输入端与超级电容模组的过压信号输出端连接，信号端子的温度信号输入端与超级电容模组的温度信号输出端连接，信号端子的输出端与超级电容单元的信号输出端连接，信号端子的信号输出端与电容管理从板的电容信息采集端连接。 Preferably, the voltage signal input end of the signal terminal is connected to the voltage signal output end of the supercapacitor module, the overvoltage signal input end of the signal terminal is connected to the overvoltage signal output end of the supercapacitor module, and the temperature signal of the signal terminal The input terminal is connected to the temperature signal output terminal of the supercapacitor module, the output terminal of the signal terminal is connected to the signal output terminal of the supercapacitor unit, and the signal output terminal of the signal terminal is connected to the capacitance information collection terminal of the capacitance management slave board.
优选的，所述滤波电路A包括滤波电感L1、滤波电感L2和滤波电感L3，三相电源的三个输出端分别通过滤波电感L1、滤波电感L2和滤波电感L3与可控整流器的三个整流输入端连接。 Preferably, the filter circuit A includes a filter inductor L1, a filter inductor L2, and a filter inductor L3, and the three output terminals of the three-phase power supply are respectively rectified by the filter inductor L1, the filter inductor L2, and the filter inductor L3 and the controllable rectifier. input connection.
优选的，所述滤波电量B包括滤波电容C1，滤波电容C1并联在可控整流器的整流输出端的正负极之间。 Preferably, the filtered electricity B includes a filter capacitor C1, which is connected in parallel between the positive and negative poles of the rectified output terminal of the controllable rectifier.
优选的，所述双向DC-DC变换器包括DC-DC输出电路，DC-DC输出电路包括直流输出电容C2、预充电电阻、预充电继电器和总正继电器。 Preferably, the bidirectional DC-DC converter includes a DC-DC output circuit, and the DC-DC output circuit includes a DC output capacitor C2, a pre-charging resistor, a pre-charging relay and a total positive relay.
直流输出电容C2的一端分别与双向DC-DC变换器的低压侧正极、预充电电阻的一端和总正继电器的一端连接。 One end of the DC output capacitor C2 is respectively connected to the positive pole of the low voltage side of the bidirectional DC-DC converter, one end of the pre-charging resistor and one end of the general positive relay.
直流输出电容C2的另一端与超级电容模组的负极连接；预充电电阻的另一端与预充电继电器的一端连接，预充电继电器的另一端分别与总正继电器的另一端和超级电容模组的正极连接。 The other end of the DC output capacitor C2 is connected to the negative pole of the super capacitor module; the other end of the pre-charging resistor is connected to one end of the pre-charging relay, and the other end of the pre-charging relay is respectively connected to the other end of the total positive relay and the super capacitor module. Positive connection.
优选的，所述电动机驱动系统还包括触摸显示器，触摸显示器与PLC控制器连接。 Preferably, the motor drive system further includes a touch display connected to the PLC controller.
与现有技术相比，本发明的有益效果是： Compared with prior art, the beneficial effect of the present invention is:
1）、本发明采用超级电容储能技术，采用变频电动机驱动修井机绞车，在修井机油管下放作业时，超级电容能量管理系统吸收电网电能，提升油管作业时，超级电容能量管理系统与电网共同为变频电动机供电，弥补电网变压器功率不足的缺陷。 1) The present invention adopts supercapacitor energy storage technology, and uses variable frequency motor to drive the drawworks of the workover rig. When the tubing of the workover rig is lowered, the supercapacitor energy management system absorbs the electric energy of the power grid. When the tubing is lifted, the supercapacitor energy management system and The power grid jointly supplies power to the variable frequency motor to make up for the defect of insufficient power of the grid transformer.
2）、本发明中，在使用超级电容做功率补偿后，可实现使用小功率的网电，带动大功率电机。当系统需要功率补偿时，如进行提升作业时，由PLC控制器控制双向DC/DC变换器为升压模式，由超级电容模组对直流母线放电，补充变频电动机所需功率。当系统处于待机、制动或小功率运行时，如进行卸管、下放作业时，由PLC控制器控制双向DC/DC变换器为降压模式，由直流母线对超级电容模组进行充电，同时吸收部分制动功率。当电网停电时，超级电容模组还可提供一定能量，使修井机能够完成提升复位步骤。 2) In the present invention, after using supercapacitors for power compensation, it is possible to use low-power grid power to drive high-power motors. When the system needs power compensation, such as lifting operations, the PLC controller controls the bidirectional DC/DC converter to be in boost mode, and the supercapacitor module discharges the DC bus to supplement the power required by the variable frequency motor. When the system is in standby, braking or low-power operation, such as unloading and lowering operations, the PLC controller controls the bidirectional DC/DC converter to step-down mode, and the supercapacitor module is charged by the DC bus, and at the same time absorb part of the braking power. When the power grid fails, the supercapacitor module can also provide a certain amount of energy, so that the workover rig can complete the lifting and reset steps.
3）、本发明通过变频器驱动变频电动机，从而驱动绞车，变频电动机可实现正反转无级调速，具有启动力矩大、结构简单、节能环保、操控性好及维护费用低等特点。 3) The present invention drives the variable frequency motor through a frequency converter to drive the winch. The variable frequency motor can realize stepless forward and reverse speed regulation, and has the characteristics of large starting torque, simple structure, energy saving and environmental protection, good controllability and low maintenance cost.
附图说明 Description of drawings
图1为本发明一种用于修井作业的电动机驱动系统的系统结构图； Fig. 1 is a system structure diagram of a motor drive system for workover operations of the present invention;
图2为本发明中超级电容管理的系统结构图。 Fig. 2 is a system structure diagram of supercapacitor management in the present invention.
具体实施方式 detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。 The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
请参阅图1，本发明提供一种技术方案：一种用于修井作业的电动机驱动系统，它包括滤波电路A、可控整流器、滤波电路B、变频器、双向DC-DC变换器、超级电容控制器、超级电容模组、PLC控制器和变频电动机。 Please refer to Fig. 1, the present invention provides a technical solution: a motor drive system for workover operations, which includes a filter circuit A, a controllable rectifier, a filter circuit B, a frequency converter, a bidirectional DC-DC converter, a super Capacitor controller, super capacitor module, PLC controller and variable frequency motor.
三相电源通过滤波电路A与可控整流器的整流输入端连接，可控整流器的整流输出端通过直流母线依次与滤波电路B和变频器连接，变频器的输出端与变频电动机的电源输入端连接，变频电动机驱动绞车进行修井作业，PLC控制器分别通过现场总线与超级电容控制器和可控整流器的控制输入端连接。 The three-phase power supply is connected to the rectification input terminal of the controllable rectifier through the filter circuit A, the rectification output terminal of the controllable rectifier is connected to the filter circuit B and the frequency converter in turn through the DC bus, and the output terminal of the frequency converter is connected to the power supply input terminal of the variable frequency motor , the frequency conversion motor drives the drawworks to carry out workover operations, and the PLC controller is respectively connected to the control input ends of the supercapacitor controller and the controllable rectifier through the field bus.
双向DC-DC变换器的高压侧正极与可控整流器的整流输出端正极连接，双向DC-DC变换器的高压侧负极与可控整流器的整流输出端负极连接，双向DC-DC变换器的低压侧正极与超级电容模组的正极连接，双向DC-DC变换器的低压侧负极与超级电容模组的负极连接，超级电容模组的信号输出端与超级电容控制器的信号采集输入端连接，超级电容控制器的DC-DC控制输出端与双向DC-DC变换器的控制输入端连接。 The positive pole of the high voltage side of the bidirectional DC-DC converter is connected to the positive pole of the rectification output end of the controllable rectifier, the negative pole of the high voltage side of the bidirectional DC-DC converter is connected to the negative pole of the rectification output end of the controllable rectifier, and the low voltage side of the bidirectional DC-DC converter The positive pole of the side is connected to the positive pole of the supercapacitor module, the negative pole of the low-voltage side of the bidirectional DC-DC converter is connected to the negative pole of the supercapacitor module, and the signal output terminal of the supercapacitor module is connected to the signal acquisition input terminal of the supercapacitor controller. The DC-DC control output terminal of the supercapacitor controller is connected with the control input terminal of the bidirectional DC-DC converter.
其中，高压侧电压为400V～600V，低压侧电压为230V～460V。 Wherein, the high-voltage side voltage is 400V-600V, and the low-voltage side voltage is 230V-460V.
本发明还可采用一个220VAC电源，为本发明中的器件提供辅助电源。 The present invention can also adopt a 220VAC power supply to provide auxiliary power for the device in the present invention.
请参阅图2，超级电容控制器包括电容管理主板、电容管理从板和电流信号采集器。 Please refer to Figure 2, the supercapacitor controller includes a capacitor management master board, a capacitor management slave board and a current signal collector.
电容管理主板通过CAN总线与电容管理从板连接，电容管理从板的电流检测端与电流信号采集器的信号输出端连接，电流信号采集器接在超级电容模组的负极端，电容管理从板的总电压/绝缘检测端与超级电容模组的正极端连接，电容管理从板的电容信息采集端通过信号端子与超级电容模组的信号输出端连接，电容管理从板的DC-DC控制输出端与双向DC-DC变换器的控制输入端连接。 The capacitor management main board is connected to the capacitor management slave board through the CAN bus. The current detection terminal of the capacitor management slave board is connected to the signal output terminal of the current signal collector. The total voltage/insulation detection terminal of the supercapacitor module is connected to the positive terminal of the supercapacitor module, the capacitance information collection terminal of the capacitance management slave board is connected to the signal output terminal of the supercapacitor module through the signal terminal, and the DC-DC control output of the capacitor management slave board The terminal is connected with the control input terminal of the bidirectional DC-DC converter.
电容管理主板可采用EV02B，电容管理从板可采用EV04C。 The capacitor management board can use EV02B, and the capacitor management slave board can use EV04C.
电流信号采集器为电流传感器或分流器。 The current signal collector is a current sensor or a shunt.
信号端子的电压信号输入端与超级电容模组的电压信号输出端连接，信号端子的过压信号输入端与超级电容模组的过压信号输出端连接，信号端子的温度信号输入端与超级电容模组的温度信号输出端连接，信号端子的输出端与超级电容单元的信号输出端连接，信号端子的信号输出端与电容管理从板的电容信息采集端连接。 The voltage signal input end of the signal terminal is connected to the voltage signal output end of the supercapacitor module, the overvoltage signal input end of the signal terminal is connected to the overvoltage signal output end of the supercapacitor module, and the temperature signal input end of the signal terminal is connected to the supercapacitor module. The temperature signal output terminal of the module is connected, the output terminal of the signal terminal is connected with the signal output terminal of the supercapacitor unit, and the signal output terminal of the signal terminal is connected with the capacitance information collection terminal of the capacitance management slave board.
滤波电路A包括滤波电感L1、滤波电感L2和滤波电感L3，三相电源的三个输出端分别通过滤波电感L1、滤波电感L2和滤波电感L3与可控整流器的三个整流输入端连接。 The filter circuit A includes a filter inductor L1, a filter inductor L2 and a filter inductor L3. The three output terminals of the three-phase power supply are respectively connected to the three rectification input terminals of the controllable rectifier through the filter inductor L1, the filter inductor L2 and the filter inductor L3.
滤波电量B包括滤波电容C1，滤波电容C1并联在可控整流器的整流输出端的正负极之间。 The filtered power B includes a filter capacitor C1, which is connected in parallel between the positive and negative poles of the rectified output terminal of the controllable rectifier.
双向DC-DC变换器包括DC-DC输出电路，DC-DC输出电路包括直流输出电容C2、预充电电阻、预充电继电器和总正继电器。 The bidirectional DC-DC converter includes a DC-DC output circuit, and the DC-DC output circuit includes a DC output capacitor C2, a pre-charging resistor, a pre-charging relay and a total positive relay.
直流输出电容C2的一端分别与双向DC-DC变换器的低压侧正极、预充电电阻的一端和总正继电器的一端连接。 One end of the DC output capacitor C2 is respectively connected to the positive pole of the low voltage side of the bidirectional DC-DC converter, one end of the pre-charging resistor and one end of the total positive relay.
直流输出电容C2的另一端与超级电容模组的负极连接；预充电电阻的另一端与预充电继电器的一端连接，预充电继电器的另一端分别与总正继电器的另一端和超级电容模组的正极连接。 The other end of the DC output capacitor C2 is connected to the negative pole of the super capacitor module; the other end of the pre-charging resistor is connected to one end of the pre-charging relay, and the other end of the pre-charging relay is respectively connected to the other end of the total positive relay and the super capacitor module. Positive connection.
电动机驱动系统还包括触摸显示器，触摸显示器与PLC控制器连接。可采用一个5.6寸的触摸显示屏。 The motor drive system also includes a touch display connected with the PLC controller. A 5.6-inch touch screen can be used.
在本发明中，变频电动机可选用至少满足以下多个参数指标的防爆抗震变频电动机： In the present invention, the variable frequency motor can be an explosion-proof and anti-seismic variable frequency motor that at least meets the following parameters:
1、额定功率：90KW； 1. Rated power: 90KW;
2、额定电压：380VAC； 2. Rated voltage: 380VAC;
3、额定转速：591rpm； 3. Rated speed: 591rpm;
4、恒功率转速：1800rpm； 4. Constant power speed: 1800rpm;
5、最高转速：2200rpm； 5. Maximum speed: 2200rpm;
6、冷却方式：风冷。 6. Cooling method: air cooling.
在本发明中，双向DC/DC变换器可选用至少满足以下多个参数指标的双向DC/DC变换器： In the present invention, the bidirectional DC/DC converter can choose a bidirectional DC/DC converter that at least meets the following parameters:
1、低压端工作电压范围：220~480VAC； 1. Working voltage range of low voltage end: 220~480VAC;
2、低压端电流：110A； 2. Low voltage terminal current: 110A;
3、低压端最大功率：50KW； 3. Maximum power at low voltage end: 50KW;
4、高压端工作电压范围：400~600VDC； 4. Working voltage range of high voltage end: 400~600VDC;
5、高压端电流：110A； 5. High voltage terminal current: 110A;
6、高压端最大功率：50KW； 6. Maximum power at high voltage end: 50KW;
7、最大效率：94； 7. Maximum efficiency: 94;
8、宽负载范围：92； 8. Wide load range: 92;
9、控制及保护特性：具有两侧过压、欠压保护，具有两侧过留、短路保护。 9. Control and protection features: It has over-voltage and under-voltage protection on both sides, and over-retention and short-circuit protection on both sides.
本发明中的超级电容模组的外壳可采用铝合金材料，其表面做阳极氧化处理，其外形尺寸(L*W*H)可设计为416*190*205mm，其重量最好小于14.5Kg。 The shell of the supercapacitor module in the present invention can be made of aluminum alloy, its surface is anodized, its external dimensions (L*W*H) can be designed as 416*190*205mm, and its weight is preferably less than 14.5Kg.
本发明中，可采用十个50.4V166F的超级电容模组，采用一个EV04C从控盒，采用一个EV02B主控盒，采用一台300A/75mV的电流传感器，采用一个LEV100预充电继电器，采用一个DM400M2300R315ADC750V的断路器，采用一个100欧姆/200W的预充电电阻，采用一个220VAC/DC24V-50W开关电源，采用一个400A/600V熔断器，采用一台标准柜体，采用一个EV200不带辅助触点的接触器。 In the present invention, ten 50.4V166F supercapacitor modules can be used, one EV04C slave control box, one EV02B master control box, one 300A/75mV current sensor, one LEV100 pre-charging relay, one DM400M2300R315ADC750V The circuit breaker adopts a 100 ohm/200W pre-charging resistor, adopts a 220VAC/DC24V-50W switching power supply, adopts a 400A/600V fuse, adopts a standard cabinet, and adopts an EV200 contact without auxiliary contacts device.
本发明中，在使用超级电容做功率补偿后，可实现使用小功率的网电，带动大功率电机。如使用110KVA的电网变压器，在超级电容补偿50KW功率的情况下，可以带动功率为150KW的电机。 In the present invention, after using the supercapacitor for power compensation, it is possible to use a low-power grid power to drive a high-power motor. For example, if a 110KVA power grid transformer is used, a motor with a power of 150KW can be driven under the condition that the supercapacitor compensates for 50KW power.
当系统需要功率补偿时，如进行提升作业时，由PLC控制器控制双向DC/DC变换器为升压模式，由超级电容模组对直流母线放电，补充变频电动机所需功率。 When the system needs power compensation, such as lifting operations, the PLC controller controls the bidirectional DC/DC converter to be in boost mode, and the supercapacitor module discharges the DC bus to supplement the power required by the variable frequency motor.
当系统处于待机、制动或小功率运行时，如进行卸管、下放作业时，由PLC控制器控制双向DC/DC变换器为降压模式，由直流母线对超级电容模组进行充电，同时吸收部分制动功率。 When the system is in standby, braking or low-power operation, such as unloading and lowering operations, the PLC controller controls the bidirectional DC/DC converter to step-down mode, and the supercapacitor module is charged by the DC bus, and at the same time absorb part of the braking power.
当电网停电时，超级电容模组还可提供一定能量，使修井机能够完成提升复位步骤。 When the power grid fails, the supercapacitor module can also provide a certain amount of energy, so that the workover rig can complete the lifting and reset steps.
尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换,凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661562.5A CN105227038A (en) | 2015-10-15 | 2015-10-15 | A kind of electric motor drive system for workover treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661562.5A CN105227038A (en) | 2015-10-15 | 2015-10-15 | A kind of electric motor drive system for workover treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105227038A true CN105227038A (en) | 2016-01-06 |
Family
ID=54995792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510661562.5A Pending CN105227038A (en) | 2015-10-15 | 2015-10-15 | A kind of electric motor drive system for workover treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105227038A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872397A (en) * | 1981-10-19 | 1983-04-30 | ヒユ−ズ・ツ−ル・カンパニ− | AC motor speed change device |
| JPS5889093A (en) * | 1981-11-21 | 1983-05-27 | Rohm Co Ltd | Speed controller for motor |
| CN204416995U (en) * | 2015-02-05 | 2015-06-24 | 成都坤宝石油科技有限公司 | A kind of service machine power management system |
| CN105186961A (en) * | 2015-09-22 | 2015-12-23 | 国网山东东营市东营区供电公司 | Motor driving system used for workover treatment |
| CN205039734U (en) * | 2015-10-15 | 2016-02-17 | 三峡大学 | A electromotor drive system for workover |
-
2015
- 2015-10-15 CN CN201510661562.5A patent/CN105227038A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872397A (en) * | 1981-10-19 | 1983-04-30 | ヒユ−ズ・ツ−ル・カンパニ− | AC motor speed change device |
| JPS5889093A (en) * | 1981-11-21 | 1983-05-27 | Rohm Co Ltd | Speed controller for motor |
| CN204416995U (en) * | 2015-02-05 | 2015-06-24 | 成都坤宝石油科技有限公司 | A kind of service machine power management system |
| CN105186961A (en) * | 2015-09-22 | 2015-12-23 | 国网山东东营市东营区供电公司 | Motor driving system used for workover treatment |
| CN205039734U (en) * | 2015-10-15 | 2016-02-17 | 三峡大学 | A electromotor drive system for workover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105186961A (en) | Motor driving system used for workover treatment | |
| CN204156591U (en) | Elevator emergency energy saver | |
| CN104218575A (en) | UPQC (unified power quality conditioner) based on SCR (silicon controlled rectifier) and energy storage | |
| CN104242738B (en) | Frequency conversion and energy saving control device and method for cluster well pumping units | |
| CN207053259U (en) | Dc bus oil pumper micro-capacitance sensor intelligent group control device and system | |
| CN204416995U (en) | A kind of service machine power management system | |
| CN204231239U (en) | Oil well micro-capacitance sensor rectification skid-mounted device and intelligent cluster control system | |
| CN205039734U (en) | A electromotor drive system for workover | |
| CN205265308U (en) | Transformer substation uses ultracapacitor system continuous current plant in station | |
| CN206004379U (en) | A kind of electric automobile and vehicle-mounted charger of buck one | |
| CN204835968U (en) | Be applied to intelligent high frequency switching power supply module among electrical power generating system of transformer substation | |
| CN104201761A (en) | Power supply system integrating photovoltaic power system and communication power supply | |
| CN204144996U (en) | A kind of multiple control lift energy feedback net arrangement with super capacitor | |
| CN203289378U (en) | Electric workover rig control system based on supercapacitor power compensation | |
| CN101789633B (en) | Electric hoist energy storing device based on ultra capacitor | |
| CN104444648B (en) | A kind of frequency-conversion traction equipment energy-saving system for elevator using bi-directional DC-DC | |
| CN203707864U (en) | Novel hybrid-energy 48V direct-current frequency-conversion power generation system | |
| CN203261257U (en) | Solar photovoltaic power generation single-phase grid-connected inverter | |
| CN205500478U (en) | Energy -conserving elevator control gear of scene | |
| CN101594115A (en) | Energy-saving device and method applied in numerical control system | |
| CN105227038A (en) | A kind of electric motor drive system for workover treatment | |
| CN204119016U (en) | A kind of electric power system of inverter low voltage ride through control system | |
| CN204068409U (en) | The electric power system that a kind of photovoltaic and communication power supply combinationally use | |
| CN201122899Y (en) | Energy feedback and harmonic reactive power compensation device suitable for multiple sets of rectification devices | |
| CN203086140U (en) | Intelligent electricity-saving controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |