KR20130089440A - System and method for controling pump adapted power - Google Patents

Abstract

PURPOSE: A control system and a control method for a power adaptive pump are provided to operate the system by adaptively controlling the energy being differently consumed depending on a pump type, thereby saving energy without influencing the conditions of a region in which a wind power generator and a solar power generator are located. CONSTITUTION: A control system for a power adaptive pump includes a blower (116), a pump (120), a wind power generator (110), a solar power generator (114), a battery (112), and a power control unit (118). The blower supplies oxygen to the underground for aeration. The pump compresses the volume of fluid and transfers the fluid. The battery stores the electricity generated by the wind power generator and the solar power generator and supplies the stored electricity to the pump. The power control unit detects the remained electricity of a battery and the electricity consumption of the blower and the pump and differently applies a flow rate level prioritized in advance according to the remained electricity of the battery, thereby controlling the electricity consumption of the pump. [Reference numerals] (112) Battery; (AA) For a sprinkler; (BB) For a fall pump; (CC) Biquadratic level; (DD) Tertiary level; (EE) Secondary level; (FF) Primary level

Description

Power adaptive pump control system and method {SYSTEM AND METHOD FOR CONTROLING PUMP ADAPTED POWER}

The present invention relates to a stand-alone power supply optimum pump control system and method.

In recent years, the demand for water has increased due to the industrialization and the improvement of living standards, and a plurality of pumps are installed at various locations, for example, pumps for transferring materials to tanks, pumps for hydraulic oil and lubricants, and machines requiring cooling. Pump for circulating cooling fresh water in the unit, pump for circulating cooled or heated fresh water, pump for supplying fresh water, pump for supplying cooling sea water, pump for supplying ballast water, pump for draining ballast water, sewage A plurality of pumps are installed at various positions, including a pump for supplying pure water used for pumping or discharging.

On the other hand, it is a power source used in the water reprocessing treatment system that enables reuse of sewage / wastewater and rainwater for various purposes, and it is possible to connect or replace renewable energy such as wind and solar power to save eco-friendly resources. In addition to this, self-power generation is possible in areas where external power supply itself is not easy on highways, suburban roads, rural roads, and mountain roads, except in urban areas where commercial power is easily available.

However, this eco-friendly self-generating system is not easy to supply alternative power when the number of days of relief occurs due to the effects of natural resources such as solar radiation and wind, so the pump control operation based on the adaptive power distribution considering the reserve power is needed. .

Therefore, in the present invention, power is supplied by adaptively applying electric power according to a predetermined flow level by accumulating electricity through a wind generator and a solar generator that independently generate electricity by using wind and sun which are infinitely clean energy. It is intended to provide an adaptive pump control system and method.

According to one aspect of the invention, in the power adaptive pump control system, a blower for supplying oxygen to the water for aeration, a pump for compressing and transporting the volume of the fluid, and produces electricity by wind A wind power generation unit similar to a conventional wind power generator, a solar power generation unit similar to a conventional solar power generator that generates electricity by solar, and accumulate electricity generated by the wind power generation unit and the solar power generation unit, and The pump is configured to detect the battery supplying the stored electricity to the pump, the remaining amount of the battery power and the power consumption of the brower and the pump, and differentially applying a flow rate level having a predetermined priority according to the detected remaining state of the power. Characterized in that it comprises a power control unit for controlling the power of.

The present invention controls the power distribution of the pump by differentially applying a flow rate of a predetermined priority to the pumps other than the pump that guarantees the constant of operation according to the remaining power of the remaining power in the system, thereby controlling natural resources such as solar radiation and wind. Not only can the load capacity of the renewable energy-based power generation system, which generates the number of days of relief, be adaptively used, but also by operating the system by adaptively controlling the amount of power consumed according to the pump type. There is an effect of saving energy without being affected by the local conditions where the solar generator is located.

1 is a schematic block diagram of a power adaptive pump control system according to an embodiment of the present invention.
Figure 2 is a detailed block diagram of each configuration of the power adaptive pump control system according to an embodiment of the present invention.
3 is a flow chart related to a power adaptive pump control method according to an embodiment of the present invention.
Figure 4 is a graph showing the operation between each level during the power adaptive pump control according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be appreciated that those skilled in the art will readily observe that certain changes in form and detail may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims. To those of ordinary skill in the art.

The present invention relates to a power-adaptive pump control due to a stand-alone renewable energy-based power generation system that supplies electricity to a pump by accumulating electricity through a wind generator and a solar generator that independently generate electricity using wind and sun, which are infinitely clean energy. In more detail, in the case where the surplus power is generated from the supplied power after supplying power to the pump that guarantees the continuous operation is guaranteed, other than the pump that guarantees the constant of operation according to the remaining amount of the surplus power By controlling the power distribution of the pump by differentially applying a flow rate with a priority set in advance for the pump, the load capacity of the renewable energy-based power generation system that generates the number of days of relief due to the effects of natural resources such as solar radiation and wind is adaptively applied. In addition to being available, this also results in a different amount of power dissipated depending on the pump type. By adaptively controlled management system to provide a technique to conserve energy without being affected by the local conditions a wind turbine and the solar generator is located.

Hereinafter, a power adaptive pump control system according to an embodiment of the present invention will be described with reference to FIG. 1.

1 is a schematic diagram of a power adaptive pump control system according to an embodiment of the present invention with reference to FIG. 1.

1 is a schematic diagram of a power adaptive pump control system according to an embodiment of the present invention.

Referring to FIG. 1, the system 100 to which the present invention is applied includes a wind power generation unit 110, a battery 112, a solar power generation unit 114, a plurality of blowers 116, a power control unit 118, and a plurality of power generation units. It includes a pump 120 and the operation server 122.

The wind power generator 110 is the same wind power generator as a conventional wind power generator that generates electricity by wind, and the solar power generator 114 is the same as a conventional solar power generator that produces electricity by sunlight Photovoltaic.

The plurality of blowers 116 are for supplying oxygen to the water for aeration and perform a blow operation in the system 100. For example, by supplying oxygen as a kind of water treatment that promotes digestion by aerobic microorganisms, the plurality of blowers 116 are located in a storage tank (not shown) or a reservoir (not shown).

The plurality of pumps 120 compresses and transfers the volume of the fluid to the supplied flowing water.

In the embodiment of the present invention, the pump 120 is classified into multi-levels such as primary level, secondary level, tertiary level, and quaternary level according to the type thereof, as shown in FIG. It is set in advance, the pumps used in the wastewater and rainwater treatment process are set from the first level to the third level, which is the highest level of power distribution priority, and reprocessed after the wastewater and rainwater treatment process. The pump used is set to the 4th level.

Here, in the system 100 of the present invention in which a plurality of blowers 116 are present, the blowers 116 are set to a primary level at which power is distributed in the highest priority, and FIGS. 4A and 4B are shown. Referring to (c), the horizontal dotted lines shown in (a), (b) and (c) of FIG. 4 respectively indicate the use of the power of the brower, and the brower 116 is guaranteed to operate at the minimum level. .

In the red region shown in (a) of FIG. 4, the remaining state of the battery is shown. When the amount of power is high as in the leftmost side, the operation of the pump 120 smoothly operates between levels, and the battery state is shown in the center. As shown in FIG. 4, the operation of the pump 120 is operated only by a preset priority of the pumps of the first to third levels as shown in FIG. 4B, and the battery state is the rightmost of FIG. 4. As shown in (c) of the pump operation of the fourth level, that is, to send a signal to turn on the external power to protect the blower 116 to ensure the blower operation. For example, an external power source such as diesel power is connected.

As shown in (c) of FIG. 4, the fourth-level pump uses water treated as an operation when the remaining battery capacity is sufficient to perform an application operation such as a fountain or a waterfall sprinkler.

The battery 112 stores electricity generated by the wind power generator 110 and the solar power generator 114, and supplies the stored electricity to the plurality of pumps 120.

The power control unit 118 detects the remaining amount of power of the battery 112 and the power usage of the plurality of blowers 116 and the pump 120, and the flow rate of which the priority is preset according to the remaining state of the detected power. Differential levels are applied to control the power of the plurality of pumps 120.

In addition, as shown in FIG. 1, the system 100 to which the present invention is applied is connected to a signal line of the power control unit 118 so that the system 100 is operated under the control of the power control unit 118. It may further include an operation server 122 for performing a management plan.

In the above description, a schematic configuration of a power adaptive pump control system according to an embodiment of the present invention has been described.

Hereinafter, a detailed block diagram of each configuration of a power adaptive pump control system according to an embodiment of the present invention will be described in detail with reference to FIG. 2.

2 is a detailed block diagram of each configuration of a power adaptive pump control system according to an embodiment of the present invention.

Referring to FIG. 2, the power adaptive pump control system 200 includes a wind power generator 210, a battery 212, a photovoltaic generator 214, a blower 216, a power controller 218, a pump ( 228), operational server 230, wind speed, solar radiation, hourly power and hourly pump load demand databases 21, 22, 23 and 24.

The wind power generator 210 is the same wind power generator as a conventional wind power generator to produce electricity by wind, the solar power generator 214 is the same as the conventional solar power generator to produce electricity by sunlight Photovoltaic.

The blower 216 performs the blowing operation in the system.

The blower 216 is for supplying oxygen in the water for aeration and performs a blowing operation in the system 200. For example, by supplying oxygen as a kind of water treatment that promotes digestion by aerobic microorganisms, the brower 216 is located in a storage tank (not shown) or a reservoir (not shown).

The pump 228 compresses and transfers the volume of the fluid with respect to the supplied flowing water, and the pump 228 is a general switch ON / OFF operation and speed in the power adaptive pump control system 200 to which the present invention is applied. There are two ways to control the speed control method, the speed control method can finely adjust the amount of flow rate by controlling the voltage or frequency, and sets the minimum level flow rate as the basis for switching control. In this case, the minimum flow rate has two operating characteristics, a function of stopping the pump operation, and a characteristic of receiving a flow rate input up to the maximum level through the pump operation.

는 최소 레벨에서는 '0'으로 동작을 하지 않고 최소 레벨과 최대 레벨 사이에서는 '1'로 동작한다. 이는 하기의 수학식과 같다.To determine the pump 228 operation

Does not operate as '0' at the minimum level, but operates as '1' between the minimum and maximum levels. This is shown in the following equation.

Subsequently, the battery 212 stores electricity generated by the wind power generator 210 and the solar power generator 214, and supplies the stored electricity to the pump 228.

The power control unit 218 detects the remaining amount of power of the battery 212 and the power usage of the blower 216 and the pump 228, and sets a flow rate level of which priority is set in advance according to the detected remaining state of the power. Differential control is used to control the power of the pump 228.

In this case, as illustrated, the power control unit 218 includes a blower power calculation unit 220, a remaining amount detection unit 222, a pump power calculation unit 224, and a power control unit 226.

The remaining amount detector 222 detects the remaining amount of the battery 212.

The pump power calculator 224 calculates the power usage of the pump 228.

The brower power calculator 220 calculates the power usage of the brower 216.

The power control unit 226 may set the flow rate of the priority level when the output values from the blower power calculation unit 220 and the pump power calculation unit 224 based on the remaining power detection unit 222 output are less than a threshold value within a predetermined period. Distributes power accordingly.

For example, a value obtained by subtracting a used output value output from the blower power calculator 220 and the pump power calculator 224 from a battery remaining state value output from the remaining power detector 222 for a preset time period is preset. If it is less than the threshold value, it is determined as the spare power and the power is distributed according to a preset flow level for the pump other than the pump which guarantees the constant of operation in the power adaptive pump control system to which the present invention is applied.

Here, the power control unit 226 sequentially measures each state of the current flow level according to the priority of the preset flow level, and controls to distribute the power according to the priority to the flow level to which power is not distributed.

In an embodiment of the present invention, the pump 228 is classified into multi-levels such as primary level, secondary level, tertiary level, and quaternary level according to the type as shown, which is used for distribution priority in power distribution. It is set in advance, the pumps used in the wastewater and rainwater treatment process are set from the first level to the third level, which is the highest level of power distribution priority, and reprocessed after the wastewater and rainwater treatment process. The pump used is set to the 4th level.

If there are multiple browsers, they are set to the primary level at which power is distributed at the highest priority.

The power control unit 218 is the electric data supplied from the wind power generation unit 210 and the photovoltaic unit 214 and the time per hour for the pump guaranteed constant operation in the power adaptive pump control system to which the present invention is applied Under the power supply plan generated from the production power and temporal pump load demand data, control is performed to set the pump operating time, determine the pump load operation, and determine the timing of external power input.

The operation of the power control unit 218 is performed based on the operation server 122 as shown in Figure 2, the operation server 122 is a level measuring unit 240, multi-level DB 242, power Supply supply unit 232, time setting unit 234, pump load operation determination unit 236 and external power input timing determination unit 238 is included.

The level measuring unit 240 measures and outputs the level ranking of the current power adaptive pump control system 200 with reference to the multilevel DB 242 in which the priority of the flow level is set. The level measuring unit 240 operates when a surplus power is generated in the current power adaptive pump control system 200, and operates for adaptive distribution of the surplus power to a pump other than a pump which guarantees constant operation. It is.

The power supply planning unit 232 executes an overall control management plan to operate the power adaptive pump control system 200, and allows the power control unit 218 to perform control under a set control management plan.

At this time, the power supply planning unit 232 is a time setting unit 234 for setting the lowest time period when the commercial power is applied, the pump load operation determination unit 236 for determining the load operation of the pump and power adaptation Status data of the power adaptive pump control system 200 collected through the external power input timing determiner 238 which determines the external power input timing for diesel generation and external power generation according to the power supply state in the pump control system. Recognizing the state according to the analysis and performing the overall control management plan by analyzing the recognized state, the statistical data stored in the illustrated wind speed, solar radiation, hourly power and hourly pump load demand database (21, 22, 23 and 24) And matching the real-time data to generate an operation plan.

The configuration of a power adaptive pump control system according to an embodiment of the present invention has been described above.

Hereinafter, a power adaptive pump control method according to an embodiment of the present invention will be described in detail with reference to FIG. 3.

3 is a flowchart illustrating a power adaptive pump control method according to an embodiment of the present invention.

First, in step 310, the pump operation time is set based on the power supply plan generated through the electrical data supplied from the wind power generation unit and the solar power generation unit, and the hourly production power and the demand of the hourly pump load for the pump with guaranteed operation. In addition, pump load operation and external power input timing are determined and operated.

In step 312, whether the cycle is set is checked, and if the cycle is a preset time, the process moves to step 314 to check the output value of the blower and pump power.

If the check result is less than the threshold value in step 316, the process sequentially proceeds to steps 318 and 320 to detect the remaining power of the battery and the power usage of the brower and the pump, differentially applies a preset flow level in step 322, and then performs power distribution in step 324. To perform.

In other words, when a value obtained by subtracting a used output value from a blower and a pump from a current battery level state value within a preset time period is less than a predetermined threshold value, it is determined as a spare power and the power adaptive pump control system to which the present invention is applied. In which power is distributed according to a preset flow level for a pump other than the pump, which is guaranteed to be constantly in operation, wherein the preset flow level is a primary level, a secondary level, a tertiary level and a 4 It is classified as a multi-level like the difference level, which is preset for the distribution priority during power distribution. The pumps used in the wastewater and stormwater treatment processes are used at the primary level, which is the highest level with the highest power distribution. The pump is set to the secondary level, and the pump used for the reprocessing of the wastewater and the rainwater treatment process is set to the fourth level. However, if there are multiple browsers, they are set to the primary level at which power is distributed at the highest priority.

In step 324 of distributing power to the pump, each state of the current flow level is sequentially measured according to a priority of a preset flow level, so that power is distributed according to the set priority to a flow level at which power is not distributed. Perform control.

As described above, an operation related to a power adaptive pump control method and system according to the present invention can be made. Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications can be made without departing from the scope of the present invention. Can be. Accordingly, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by equivalents of the claims and the claims.

110: wind power generator 112: battery
114: solar power generation unit 116: Brow
118: power control unit 120: pump

Claims (9)

In the power adaptive pump control system,
A blower that supplies oxygen to the water for aeration,
A pump for compressing and conveying a volume of fluid,
The same wind power generation unit as a conventional wind power generator that generates electricity by wind;
The same photovoltaic power generation unit as a conventional photovoltaic power generator for producing electricity by solar light;
A battery for storing electricity generated by the wind power generator and the solar power generator and supplying the stored electricity to the pump;
And a power control unit for detecting the remaining amount of battery power and the amount of power used in the brower and the pump, and controlling the power of the pump by differentially applying a flow rate level having a predetermined priority according to the detected remaining state of the power. Power adaptive pump control system. The apparatus of claim 1,
A remaining amount detector for detecting a remaining amount of battery power;
A power supply calculation unit for calculating a power consumption of the blower;
A pump power usage calculation unit for calculating power usage of the pump;
And a power control unit for distributing power according to a flow rate level of priority when an output value from a blower power use calculation unit and a pump power use calculation unit based on the remaining power detection unit output is less than a threshold value within the predetermined period. Power adaptive pump control system. The method of claim 1, wherein the preset flow rate level,
Pumps used in wastewater and rainwater treatment processes are the third level at the first level, which is the highest level of power distribution, and pumps used for reprocessing after the wastewater and rainwater treatment processes, the fourth level. The power adaptive pump control system, characterized in that is set to. The method of claim 1,
At the predetermined flow rate level, the blower is set to a primary level at which power is distributed at the highest priority. The method of claim 1, wherein the power control unit,
And sequentially measuring each state of the current flow level according to the priority of the preset flow level to distribute power according to the priority to the flow level to which power is not distributed. The method of claim 1, wherein the power control unit,
The power supply plan generated through the electric data supplied from the wind power generation unit and the solar power generation unit, and the hourly production power and the hourly pump load demand data for the pump which guarantees continuous operation in the power adaptive pump control system. Power supply adaptive pump control system, characterized in that the control to operate by setting the pump operating time, pump load operation determination and external power input timing. In the power adaptive pump control method,
The pump operation time is determined and the pump load operation is determined under the power supply plan generated from the electricity data supplied from the wind power generation unit and the photovoltaic unit and the hourly production power and the hourly pump load demand data for the pump with guaranteed continuous operation. And determining and operating external power input time,
Checking the blower and pump power usage output values within a preset period;
Detecting a residual amount of battery power and a power consumption of a brower and a pump when the check result is less than a threshold value;
And distributing power to the pump by differentially applying a flow rate level of which priority is set in advance according to the remaining power level of the detected power. The method of claim 7, wherein the process of distributing power to the pump,
The power adaptive pump control method characterized by controlling each state of the current flow level in accordance with the priority of the preset flow level in order to distribute the power according to the set priority to the flow level to which power is not distributed. . The method of claim 1, wherein the preset flow rate level,
Pumps used in wastewater and rainwater treatment processes are the third level at the first level, which is the highest level of power distribution, and pumps used for reprocessing after the wastewater and rainwater treatment processes, the fourth level. The power adaptive pump control method, characterized in that set to.

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