阅读说明：本技术 石油电动钻机再生制动能量回收装置及方法 (Petroleum electric drilling machine regenerative braking energy recovery device and method ) 是由 李树胜 于 2019-10-25 设计创作，主要内容包括：本发明提供了石油电动钻机再生制动能量回收装置及方法,包括：主控制器、发电机组、绞车模块、飞轮阵列储能模块和钻机模块；其中,飞轮阵列储能模块包括多台飞轮本体；发电机组用于为绞车模块和飞轮阵列储能模块提供主动力；绞车模块用于带动钻机模块进行起钻操作和下钻操作；主控制器用于采集发电机组和绞车模块的输出功率,并根据发电机组的输出功率和绞车模块的输出功率得到飞轮阵列储能模块的期望输出功率；以及,将期望输出功率按照阶梯方式分配给飞轮阵列储能模块中的每台飞轮本体,以使每台飞轮本体对钻机模块产生的能量进行回收,从而缓解了现有的电动钻机高能耗的技术问题,提高燃油利用率。(The invention provides a device and a method for recovering regenerative braking energy of an oil electric drilling machine, which comprises the following steps: the system comprises a main controller, a generator set, a winch module, a flywheel array energy storage module and a drilling machine module; the flywheel array energy storage module comprises a plurality of flywheel bodies; the generator set is used for providing main power for the winch module and the flywheel array energy storage module; the winch module is used for driving the drilling machine module to carry out the drilling pulling operation and the drilling pulling operation; the main controller is used for acquiring the output power of the generator set and the winch module and obtaining the expected output power of the flywheel array energy storage module according to the output power of the generator set and the output power of the winch module; and distributing the expected output power to each flywheel body in the flywheel array energy storage module according to a step mode so that each flywheel body recovers the energy generated by the drilling machine module, thereby relieving the technical problem of high energy consumption of the existing electric drilling machine and improving the utilization rate of fuel oil.)

1. The device for recovering the regenerative braking energy of the petroleum electric drilling machine is characterized by comprising: the system comprises a main controller, a generator set, a winch module, a flywheel array energy storage module and a drilling machine module; the flywheel array energy storage module comprises a plurality of flywheel bodies;

the main controller is respectively connected with the generator set, the winch module and the flywheel array energy storage module, the generator set is respectively connected with the winch module and the flywheel array energy storage module, and the winch module is also connected with the drilling machine module;

the generator set is used for providing main power for the winch module and the flywheel array energy storage module;

the winch module is used for driving the drilling machine module to carry out the drill-out operation and the drill-down operation under the action of the driving force;

the main controller is used for acquiring the output power of the generator set and the winch module and obtaining the expected output power of the flywheel array energy storage module according to the output power of the generator set and the output power of the winch module; and distributing the expected output power to each flywheel body in the flywheel array energy storage module in a step mode, so that each flywheel body recovers the energy generated by the drilling machine module.

2. The regenerative braking energy recovery apparatus of an oil electric drilling rig according to claim 1, wherein the desired output power is distributed into given powers in a stepwise manner, the given powers including a positive given power and a negative given power;

each flywheel body is also used for switching to a corresponding working state according to the given power.

3. The regenerative braking energy recovery device for petroleum electric drilling machines of claim 2, wherein the operating state comprises a power generating state and a charging state;

when the given power is the positive given power, the flywheel body is switched to the power generation state according to the positive given power;

alternatively, the first and second electrodes may be,

when the given power is the negative given power, the flywheel body is switched to the charging state according to the negative given power.

4. The regenerative braking energy recovery device for petroleum electric drilling machines of claim 1, wherein the generator set comprises a plurality of diesel engines, each diesel engine being configured to generate alternating current to provide the main power for the winch module and the flywheel array energy storage module.

5. The regenerative braking energy recovery apparatus of an oil electric drilling rig of claim 4, wherein the apparatus further comprises a rectifier module; wherein the rectifier module comprises a plurality of IGBT rectifiers;

one end of the IGBT rectifier is connected with the generator set, the other end of the IGBT rectifier is connected with the winch module and the flywheel array energy storage module respectively, the IGBT rectifier is used for converting alternating current generated by each diesel engine into direct current, and the direct current provides main power for the winch module and the flywheel array energy storage module.

6. The regenerative braking energy recovery device for an oil electric drilling rig according to claim 5, wherein the winch module comprises a plurality of winches and a drive motor connected to each of the winches; each driving motor is also connected with the rectifier module through a corresponding IGBT inverter;

and the IGBT inverter corresponding to each driving motor is used for processing the direct current output by the rectifier module so as to drive the driving motor to rotate and provide main power for the drilling machine module through the winch.

7. The regenerative braking energy recovery device for petroleum electric drilling machines according to claim 6, wherein the flywheel array energy storage module comprises a plurality of flywheel bodies, and a magnetic bearing suspension system and a permanent magnet synchronous motor connected to each flywheel body; each permanent magnet synchronous motor is also connected with the rectifier module through a corresponding IGBT inverter;

and the IGBT inverter corresponding to each permanent magnet synchronous motor is used for processing the direct current output by the rectifier module so as to drive the permanent magnet synchronous motor to rotate and drive the flywheel body to recover the energy generated by the drilling machine module.

8. The regenerative braking energy recovery device for the petroleum electric drilling machine according to claim 7, wherein the main controller is further connected with the IGBT rectifier, the IGBT inverter corresponding to each driving motor and the IGBT inverter corresponding to each permanent magnet synchronous motor respectively;

the main controller is further configured to send a remote control instruction to the IGBT rectifier, the IGBT inverter corresponding to each driving motor, and the IGBT inverter corresponding to each permanent magnet synchronous motor, so that the IGBT rectifier, the IGBT inverter corresponding to each driving motor, and the IGBT inverter corresponding to each permanent magnet synchronous motor perform state adjustment according to the remote control instruction.

9. The regenerative braking energy recovery device for petroleum electric drilling machines of claim 8, further comprising a display screen connected to the main controller,

the main controller is further used for acquiring telemetering data of the generator set, the winch module, the flywheel array energy storage module and the IGBT rectifier and sending the telemetering data to the display screen for displaying.

10. A method for recovering regenerative braking energy of an oil electric drilling rig, which is applied to the regenerative braking energy recovery device of the oil electric drilling rig as claimed in any one of claims 1 to 9, and comprises the following steps:

the main controller collects the output power of the generator set and the output power of the winch module;

obtaining expected output power of the flywheel array energy storage module according to the output power of the generator set and the output power of the winch module;

and distributing the expected output power to each flywheel body in the flywheel array energy storage module in a step mode, so that each flywheel body recovers the energy generated by the drilling machine module.

Technical Field

The invention relates to the technical field of oil exploitation, in particular to a device and a method for recovering regenerative braking energy of an oil electric drilling machine.

Background

At present, compared with the traditional petroleum mechanical drilling machine, the electric drilling machine has the advantages of high efficiency, small harmonic wave, high flexibility and the like, and is an important component of the current petroleum industrial production equipment. From the aspect of power source, the petroleum electric drilling machine generally adopts 3-5 diesel generating sets as power sources, consumes about 150 tons of diesel oil per month and 1 ton of engine oil, and has the problems of high oil consumption, high cost, and high purchase cost and maintenance cost of the diesel engine. Therefore, the problem of high energy consumption of the traditional drilling machine is solved, fuel is saved, the utilization rate of the fuel is improved, and the urgent need of users is met.

Disclosure of Invention

In view of the above, the present invention aims to provide a device and a method for recovering regenerative braking energy of an oil electric drilling machine, so as to alleviate the technical problem of high energy consumption of the existing electric drilling machine and improve the fuel utilization rate.

In a first aspect, an embodiment of the present invention provides an apparatus for recovering regenerative braking energy of an oil electric drilling machine, where the apparatus includes: the system comprises a main controller, a generator set, a winch module, a flywheel array energy storage module and a drilling machine module; the flywheel array energy storage module comprises a plurality of flywheel bodies;

the main controller is respectively connected with the generator set, the winch module and the flywheel array energy storage module, the generator set is respectively connected with the winch module and the flywheel array energy storage module, and the winch module is also connected with the drilling machine module;

the generator set is used for providing main power for the winch module and the flywheel array energy storage module;

the winch module is used for driving the drilling machine module to carry out the drilling-up operation and the drilling-down operation;

the main controller is used for acquiring the output power of the generator set and the winch module and obtaining the expected output power of the flywheel array energy storage module according to the output power of the generator set and the output power of the winch module; and distributing the expected output power to each flywheel body in the flywheel array energy storage module in a step mode, so that each flywheel body recovers the energy generated by the drilling machine module.

With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the desired output power is allocated to given powers in a step-wise manner, and the given powers include a positive given power and a negative given power;

each flywheel body is also used for switching to a corresponding working state according to the given power.

With reference to the first possible implementation manner of the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the operating state includes a power generation state and a charging state;

when the given power is the positive given power, the flywheel body is switched to the power generation state according to the positive given power; or, when the given power is the negative given power, the flywheel body is switched to the charging state according to the negative given power.

In combination with the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the generator set includes a plurality of diesel engines, and each diesel engine is configured to generate an alternating current to provide main power for the winch module and the flywheel array energy storage module.

With reference to the third possible implementation manner of the first aspect, the embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the apparatus further includes a rectifier module; the rectifier module comprises a plurality of IGBT rectifiers;

one end of the IGBT rectifier is connected with the generator set, the other end of the IGBT rectifier is connected with the winch module and the flywheel array energy storage module respectively, the IGBT rectifier is used for converting alternating current generated by each diesel engine into direct current, and the direct current provides main power for the winch module and the flywheel array energy storage module.

With reference to the fourth possible implementation manner of the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the winch module includes a plurality of winches, and a driving motor connected to each of the winches; each driving motor is also connected with the rectifier module through a corresponding IGBT inverter;

and the IGBT inverter corresponding to each driving motor is used for processing the direct current output by the rectifier module so as to drive the driving motor to rotate and provide main power for the drilling machine module through the winch.

With reference to the fifth possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the flywheel array energy storage module includes a plurality of flywheel bodies, and a magnetic bearing suspension system and a permanent magnet synchronous motor connected to each flywheel body; each permanent magnet synchronous motor is also connected with the rectifier module through a corresponding IGBT inverter;

and the IGBT inverter corresponding to each permanent magnet synchronous motor is used for processing the direct current output by the rectifier module so as to drive the permanent magnet synchronous motor to rotate and drive the flywheel body to recover the energy generated by the drilling machine module.

With reference to the sixth possible implementation manner of the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the main controller is further connected to the IGBT rectifier, the IGBT inverter corresponding to each driving motor, and the IGBT inverter corresponding to each permanent magnet synchronous motor, respectively;

the main controller is further configured to send a remote control instruction to the IGBT rectifier, the IGBT inverter corresponding to each driving motor, and the IGBT inverter corresponding to each permanent magnet synchronous motor, so that the IGBT rectifier, the IGBT inverter corresponding to each driving motor, and the IGBT inverter corresponding to each permanent magnet synchronous motor perform state adjustment according to the remote control instruction.

With reference to the seventh possible implementation manner of the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, where the apparatus further includes a display screen, and the display screen is connected to the main controller;

the main controller is further used for acquiring telemetering data of the generator set, the winch module, the flywheel array energy storage module and the IGBT rectifier and sending the telemetering data to the display screen for displaying.

In a second aspect, an embodiment of the present invention further provides a method for recovering regenerative braking energy of an oil electric drilling rig, where the method is applied to the apparatus for recovering regenerative braking energy of an oil electric drilling rig in the first aspect, and the method includes:

the main controller collects the output power of the generator set and the output power of the winch module;

obtaining expected output power of the flywheel array energy storage module according to the output power of the generator set and the output power of the winch module;

and distributing the expected output power to each flywheel body in the flywheel array energy storage module in a step mode, so that each flywheel body recovers the energy generated by the drilling machine module.

The embodiment of the invention has the following beneficial effects:

the embodiment of the invention provides a device and a method for recovering regenerative braking energy of an oil electric drilling machine, which comprises the following steps: the system comprises a main controller, a generator set, a winch module, a flywheel array energy storage module and a drilling machine module; the flywheel array energy storage module comprises a plurality of flywheel bodies; the generator set is used for providing main power for the winch module and the flywheel array energy storage module; the winch module is used for driving the drilling machine module to carry out the drilling pulling operation and the drilling pulling operation; the main controller is used for acquiring the output power of the generator set and the winch module and obtaining the expected output power of the flywheel array energy storage module according to the output power of the generator set and the output power of the winch module; and distributing the expected output power to each flywheel body in the flywheel array energy storage module according to a step mode so that each flywheel body recovers the energy generated by the drilling machine module, thereby relieving the technical problem of high energy consumption of the existing electric drilling machine and improving the utilization rate of fuel oil.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a regenerative braking energy recovery device of an oil electric drilling rig according to an embodiment of the invention;

FIG. 2 is a schematic diagram of another regenerative braking energy recovery device for an oil electric drilling rig according to an embodiment of the invention;

FIG. 3 is a schematic diagram of another regenerative braking energy recovery device for an oil electric drilling rig according to an embodiment of the invention;

fig. 4 is a flowchart of a method for recovering regenerative braking energy of an oil electric drilling rig according to an embodiment of the present invention.

Icon:

10-a main controller; 20-a generator set; 30-a winch module; 40-flywheel array energy storage module; 50-a drilling rig module; 60-rectifier module.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In practical application, the problem of high energy consumption of diesel engines is mainly reflected in the following three aspects: (1) in the drilling operation, in order to deal with the working condition of sudden load change, one set of unit is generally required to be backed up to run on the network, and a diesel generating set is usually operated in the low-efficiency state of 'big horse pulls a trolley', so that a great deal of fuel oil is wasted and extra emission is caused; (2) when the load is suddenly changed, the phenomenon of 'black smoke' caused by insufficient combustion can occur on the diesel engine, fuel oil is wasted, emission is increased, and meanwhile, the bus voltage of the generator and the unit frequency fluctuate greatly, so that the service life of electrical equipment is shortened; (3) a large amount of potential energy generated in the tripping process of the electric drilling machine is not recycled, but is converted into heat to be released through energy consumption braking, so that energy waste is caused.

Aiming at the technical problem of high energy consumption of the electric drilling machine, the embodiment of the invention provides a device and a method for recovering the regenerative braking energy of the petroleum electric drilling machine, which relieve the technical problem of high energy consumption of the existing electric drilling machine, save fuel, improve the utilization rate of the fuel and improve the energy-saving effect of recovering the regenerative braking energy of the electric drilling machine.

For the convenience of understanding the embodiment, first, a detailed description is given to a regenerative braking energy recovery device for an oil electric drilling rig according to an embodiment of the present invention.