KR20200037679A - Systems and methods for testing a controller considering operation of other controller - Google Patents

Abstract

According to the present invention, a system for testing a controller includes a simulator for performing virtual dynamic interpretation on a target to be controlled by a first controller based on at least one signal required for the dynamic interpretation among a plurality of control signals outputted from the first controller to be tested. The simulator performs the virtual dynamic interpretation on the target to be controlled by the first controller in consideration of at least one of an operation condition and an error condition of a second controller connected with the first controller. Therefore, the controller to be tested may be tested in a state closer to an actual situation.

Description

Systems and methods for testing a controller considering operation of other controllers

The present invention relates to a test system and method, and more particularly to a controller test system and method.

In the conventional controller test, after receiving a signal from a specific controller, the simulation is performed only for the operation under the jurisdiction of the controller, and then the simulated result is sent back to the controller to check the response of the controller and the simulation result and normal or abnormal operation. The operation was judged.

However, since the actual control system operates organically in conjunction with several different controllers rather than operating independently, the controller test should be performed considering the operation of the controller under test as well as the operation with other organically connected controllers. You can do close tests.

Nevertheless, in the past, when there existed other controllers operating in organic connection with the controller under test, the controller under test could not be tested in a situation closer to reality considering the operation of the other controller.

For example, the controller to be tested is a power management system (PMS) of a ship system, a micro grid control device in a microgrid system including distributed power, or a distribution power system ) Is a DAS (Distribution Automation System) or a transmission power system is an Energy Management System (EMS), taking into account the operation or operating conditions of other controllers organically connected to each controller under test We weren't able to run tests that were closer to reality.

US registered patent US9,851,415 (invention name “Method for analyzing operation state of substation by combining whole grid model with local grid model”)

 Real time digital simulation for control and protection system testing, 2004 IEEE 35th Annual Power Electronics Specialists Conference, 2004.6

In embodiments of the present invention, when performing a test on a controller under test, the simulator reflects an operating condition or an error condition of another controller operating in connection with the corresponding controller under test, as well as the controller under test as well as the controller under test. Provided is a controller test system and a controller test method that also considers operation with other controllers in operation.

According to an aspect of the present invention, the controller test system is a virtual for an object controlled by the first controller based on at least one control signal required for dynamic analysis among a plurality of control signals output from the first controller to be tested. It includes a simulator for performing a dynamic analysis of, but the simulator is a virtual for the object controlled by the first controller in consideration of at least one of the operating conditions and error conditions of the second controller operating in conjunction with the first controller Perform dynamic analysis.

When at least one of the operating condition and the error condition of the second controller is analyzed to satisfy at least one of the operating condition and the error condition of the second controller, the simulator simulates the virtual condition according to at least one of the operating condition and the error condition. Dynamic analysis can be performed. If at least one of the operating condition and the error condition of the second controller is analyzed and the at least one of the operating condition and the error condition of the second controller is not satisfied, the simulator is at least one of the operating condition and the error condition of the second controller Dynamic analysis without reflecting can be performed. The simulator filters a plurality of control signals received from the first controller to be tested, and outputs at least one control signal necessary for the dynamic analysis, and a control signal processing unit for outputting at least one control signal required for the dynamic analysis. A dynamic analysis performing unit that performs virtual dynamic analysis on a target controlled by the first controller, and a second controller that analyzes the result of the dynamic analysis and analyzes at least one of an operating condition and an error condition of the second controller. It may include an operation check unit. The second controller operation confirmation unit may transmit the dynamic analysis result to the first controller that is the test target. The simulator may further include a facility signal transmission device 130 that delivers the dynamic analysis results to the first controller that is the test target. If at least one of the second controller operating condition and the error condition is satisfied by analyzing at least one of the operating condition and the error condition of the second controller, the second controller operation checking unit is at least one of the second controller operating condition and the error condition To the dynamic analysis execution unit, and the dynamic analysis execution unit performs a virtual dynamic analysis according to at least one of an operating condition and an error condition of the second controller with respect to an object controlled by the first controller to perform dynamic analysis. The result of the analysis may be transmitted to the first controller that is the test target. When at least one of the operating condition and the error condition of the second controller is analyzed and the at least one of the operating condition and the error condition of the second controller is not satisfied, the second controller operation check unit determines the second controller operating condition and error condition Without transmitting at least one of the to the dynamic analysis performing unit, the dynamic analysis performing unit performs a virtual dynamic analysis that does not reflect at least one of an operating condition and an error condition of the second controller with respect to an object controlled by the first controller. In addition, a result of performing dynamic analysis that does not reflect at least one of an operating condition and an error condition of the second controller may be transmitted to the first controller that is the test target. The operating condition of the second controller may be an operating condition of the overcurrent protection relay. The first controller is a power management system (PMS), and the second controller is an over current relay, an over voltage relay, an under voltage relay, and an over frequency relay. ), Under frequency relay, Over Excitation relay, Under Excitation relay, Thruster load limitation controller, and Cargo pump load limitation controller ). The first controller is a power management system, and the second controller may be at least one of an in-vessel actuator controller, a pump controller, and a valve controller. The first controller may be a power management system (PMS), and the second controller may be a controller that controls consumers of power. The first controller is an energy management system, and the second controller is an over current relay, an over voltage relay, an under voltage relay, and an over frequency relay. relay) and under frequency relay. The first controller is one of a distribution automation system (DAS) and a power management system (PMS), and the second controller is an over current relay, an over voltage relay, and an under voltage relay. ), At least one of an over frequency relay, an under frequency relay, a phase controller and a transformer tap controller. The first controller is a micro grid power management system (PMS) or an energy management system (EMS), and the second controller is an over current relay, an over voltage relay, and an under voltage relay. relay, over frequency relay, under frequency relay, tap controller and transformer tap controller, photovoltaic (PV) controller, energy storage system (ESS) controller and wind controller It may be at least one of. The first controller is one of a distributed power controller in a virtual power plant, a power management system, and an energy management system, and the second controller is an over current relay ), Over voltage relay, Under voltage relay, Over frequency relay, Under frequency relay, Tap controller and Transformer tap controller, PV (photovoltaic) controller, Energy It may be at least one of a storage device (Energy Storage System, ESS) controller and a wind (Wind) controller.

According to another aspect of the present invention, a controller test method includes receiving a plurality of control signals from a first controller under test in a simulator, and based on at least one control signal required for dynamic analysis among the plurality of control signals. And performing a virtual dynamic analysis of a target controlled by the first controller in a simulator, considering at least one of an operating condition and an error condition of a second controller operating in conjunction with the first controller in the simulator. By performing a virtual dynamic analysis of the object controlled by the first controller.

When at least one of the operating condition and the error condition of the second controller is analyzed to satisfy at least one of the operating condition and the error condition of the second controller, the simulator simulates the virtual condition according to at least one of the operating condition and the error condition. Dynamic analysis can be performed. If at least one of the operating condition and the error condition of the second controller is analyzed and the at least one of the operating condition and the error condition of the second controller is not satisfied, the simulator is at least one of the operating condition and the error condition of the second controller Dynamic analysis without reflecting can be performed. The operating condition of the second controller may be an operating condition of the overcurrent protection relay.

According to the controller test system and the controller test method in consideration of the operation of another controller according to the embodiments of the present invention, not only the controller to be tested, but other controllers in the range of the controller to be tested-for example, a protective relay- It is effective to accurately and more realistically test the situation occurring in the real field by further reflecting the motion in the simulator.

According to a controller test system and a controller test method in consideration of the operation of another controller according to embodiments of the present invention, when a controller under test is tested, when the other controller operating in connection with the controller under test operates, the controller under test is tested Or, if another controller does not operate, testing the controller under test has an effect of testing in a state closer to the actual situation in consideration of the operating condition or error condition of the controller under test.

1 is a block diagram illustrating a method of testing a controller under test in consideration of operating conditions of another controller operating in conjunction with a controller under test according to an embodiment of the present invention.
2 is a flowchart illustrating a method of testing a controller under test when a protection relay is applied as another controller (second controller) operating in conjunction with a controller under test according to an embodiment of the present invention.
FIG. 3 is a block diagram showing the configuration of an overcurrent protection relay as another controller (second controller) operating in conjunction with the controller under test of FIG. 2.
4 is a graph for explaining the operation region of the overcurrent protection relay of FIG. 3.
5 is a table showing examples of other controllers (second controllers) operating in conjunction with a controller under test when the controller under test according to an embodiment of the present invention is a power management system (PMS).
6 is a table showing examples of other controllers (second controllers) that operate in conjunction with a controller under test when the controller under test according to another embodiment of the present invention is an energy management system (EMS).
7 is another controller (second controller) operating in conjunction with a controller under test when the controller under test according to another embodiment of the present invention is a distribution automation system (DAS) or a power management system (PMS) in a distribution system. This is a table showing examples.
8 is a controller to be tested according to another embodiment of the present invention is operated in conjunction with a controller under test when a power management system (PMS) or an energy management system (EMS) in a microgrid including distributed power Is a table showing examples of other controllers (second controllers).

It should be noted that the technical terms used in this specification are only used to describe specific embodiments, and are not intended to limit the spirit of the technology disclosed herein. In addition, technical terms used in this specification should be interpreted as meanings generally understood by a person having ordinary knowledge in the field to which the technology disclosed in this specification belongs, unless defined otherwise. It should not be interpreted as a comprehensive meaning or an excessively reduced meaning. In addition, when the technical term used in this specification is a wrong technical term that does not accurately represent the spirit of the technology disclosed in this specification, it should be understood by being replaced with a technical term that can be correctly understood by those skilled in the art. In addition, general terms used in the present specification should be interpreted as defined in the dictionary or in context before and after, and should not be interpreted as an excessively reduced meaning.

In addition, the singular expression used in this specification includes the plural expression unless the context clearly indicates otherwise. In this specification, the terms "consisting of" or "comprising" should not be construed as including all of the various components, or various steps described in the specification, among which some components or some steps It may not be included, or it should be construed to further include additional components or steps.

Hereinafter, in the embodiments of the present invention, the functions described in one embodiment are omitted for the components having the same reference numerals but different descriptions are omitted.

1 is a block diagram illustrating a method of testing a controller under test in consideration of operating conditions of another controller operating in conjunction with a controller under test according to an embodiment of the present invention.

A controller test system according to an embodiment of the present invention includes a controller to be tested (first controller, 10) and a simulator 1.

The first controller 10 is a controller to be tested and receives test results from a simulator. The simulator 1 may include a control signal receiving and analyzing unit 100, a dynamic analysis performing unit 110, and a second controller operation checking unit 120.

The simulator 1 is a virtual dynamic for a target controlled by the first controller 10 in consideration of an operating condition or an error condition of the other controller (second controller, 140) operating organically with the first controller 10 Analysis can be performed.

The control signal processing unit 100 filters a plurality of control signals 12 received from the first controller 10 to be tested and outputs at least one control signal 102 necessary for dynamic analysis. Specifically, the control signal processing unit 100 receives a signal output from the first controller 10 and sends a control signal to the dynamic analysis execution unit 110 (for example, necessary for dynamic analysis among a plurality of control signals) A signal, that is, an actual generator operation signal, a traffic light to open a breaker) or a signal that should not be sent to the dynamic analysis execution unit 110 (for example, a signal to turn on a light, a signal to turn on a pump) is distinguished The dynamic analysis execution unit 110 may perform an accurate analysis.

The dynamic analysis performing unit 110 performs virtual dynamic analysis on an object controlled by the first controller 10 based on at least one control signal 102 required for the dynamic analysis.

The second controller operation checking unit 120 analyzes the result 112 of the dynamic analysis and analyzes the operating condition or error condition of the second controller 140. The operating condition or error condition of the second controller 140 will be described later with reference to FIGS. 5 to 8.

The first controller 10 may be, for example, a protection relay, specifically, an overcurrent protection relay, and when a predetermined set value for over current is satisfied in a power grid that fluctuates in real time, a circuit breaker (Circuit Breaker) : CB) can operate to block overcurrent. That is, when an overcurrent occurs in the power network controlled by the first controller 10 after receiving the control signal 102 necessary for the dynamic analysis from the dynamic analysis performing unit 110, the second controller operation confirmation unit 120 is protected It is possible to monitor whether the relay is operating normally and blocking the overcurrent.

If the simulator 1 does not satisfy the operating condition or error condition of the second controller 140 as a result of the analysis, dynamic analysis (operating conditions of the second controller 140 or the like) in the above-described dynamic analysis performing unit 110 The result of performing the virtual dynamic analysis that does not reflect the error condition) may be transmitted to the first controller 10 to be tested. Then, the simulator may transmit the simulation completion signal to the first controller 10 to be tested.

In this case, the dynamic controller performance result 124 that does not reflect the operating condition or error condition of the second controller 140 may be transmitted to the controller 10 to be tested through the second controller operation confirmation unit 120.

Alternatively, the simulator 1 may further include a facility signal transmitter 130 for transmitting the result of performing the dynamic analysis to the first controller 10 as a test target. In this case, the facility signal transmitting unit 130 may transmit the dynamic analysis result 132 that does not reflect the operating condition or error condition of the second controller 140 to the first controller 10 to be tested.

On the other hand, the second controller operation check unit 120 performs dynamic analysis of the operation condition or error condition 122 of the second controller 140 when the operation condition or error condition of the second controller 140 is satisfied as a result of the analysis. Device 110.

The dynamic analysis apparatus 110 performs a virtual dynamic analysis using the received operating condition or error condition 122 of the second controller 140.

The simulator 1 may transmit a result of performing dynamic analysis under the operating condition or error condition to the first controller 10 to be tested. Then, the simulator may transmit the simulation completion signal to the first controller 10 to be tested.

In this case, the result of performing the dynamic analysis under the operating condition or the error condition of the second controller 140 may be transmitted to the controller 10 to be tested through the second controller operation confirmation unit 120. Then, the second controller operation confirmation unit 120 may transmit the simulation completion signal to the first controller 10 to be tested.

The simulator 1 may further include a facility signal transmitting unit 130 for transmitting the result of performing the dynamic analysis under the operating condition or error condition of the second controller 140 to the first controller 10 to be tested. That is, the facility signal transmitting unit 130 may transmit the dynamic analysis result 132 in the operating condition or error condition of the second controller 140 to the first controller 10 to be tested. Then, the facility signal transmitter 130 may transmit the simulation completion signal to the first controller 10 to be tested.

The simulator 1 may include other controllers (or second controllers 140) in the range of the controller 10 to be tested as shown in FIG. 2 inside the simulator. Alternatively, the other controller (or the second controller) may exist outside the simulator 1.

When the other controller (or the second controller, 124) is an overcurrent protection relay, it may be disposed in a power grid where overcurrent may be generated.

The other controller (or second controller) may be a controller that operates in conjunction with the controller under test 10. When the controller under test 10 is tested, the controller under test 10 is tested by testing the controller under test 10 when the other controller operates, or by testing the controller under test 10 when the other controller does not operate. You can test it closer to the actual situation.

2 is a flowchart illustrating a method of testing a controller under test when a protection relay is applied as another controller (second controller) operating in conjunction with a controller under test according to an embodiment of the present invention.

Referring to FIG. 2, first, signals including a plurality of control signals 12 are generated in the first controller 10 to be tested (step S210).

Then, the simulator 1 connected to the first controller 10 to be tested receives a plurality of control signals generated from the first controller 10 (step S220), and receives a plurality of control signals from the first controller 10. The control signals are analyzed to filter at least one control signal necessary for dynamic analysis (step S230). Specifically, the simulator 1 receives signals output from the first controller 10 and controls signals required for dynamic analysis (for example, an actual generator operation signal, a signal for opening a circuit breaker) or signals unnecessary for dynamic analysis ( For example, a signal for turning on a light and a signal for turning on a pump may be classified and filtered.

The simulator 1 performs dynamic analysis using the filtered signal (for example, a control signal required for dynamic analysis) through the step S240 of filtering signals required for the dynamic analysis engine (S250) and performs the dynamic analysis results. Analyze (S260).

The simulator 1 then analyzes the operating conditions of the protective relay (S270) and determines whether the operating conditions of the protective relay are satisfied (S280).

When the determination result in step S280 does not satisfy the protection relay operation condition, the simulator 1 transmits the result of the dynamic analysis (dynamic analysis not reflecting the operation condition of the protection relay) of step S250 to the first controller 10 to be tested. Send (S300). Thereafter, the simulator 1 transmits the simulation completion signal to the first controller 10 to be tested (S310).

On the other hand, if the protection relay operation condition is satisfied as a result of the determination in step S280, the simulator 1 performs dynamic analysis in the protection relay operation condition (S290), and analyzes the dynamic analysis result in the protection relay operation condition (S292). ), The dynamic analysis result under the operating condition of the protective relay is transmitted to the first controller 10 to be tested (S294). When the protection relay operation condition is satisfied, the simulator 1 simulates virtual dynamics in a situation in which the circuit between the power system and the load device is cut off by operating a circuit breaker in the protection relay in an abnormal power system. The results can be delivered to the first controller 10. Thereafter, the simulator 1 transmits the simulation completion signal to the first controller 10 to be tested (S296).

FIG. 3 is a block diagram showing the configuration of an overcurrent protection relay as another controller (second controller) operating in conjunction with the controller under test of FIG. 2. 4 is a graph for explaining the operation region of the overcurrent protection relay of FIG. 3.

Referring to FIG. 3, the over current protection relay 140 is composed of a circuit breaker (CB) 142 and a relay 144. The overcurrent protection relay 140 operates to cut off the overcurrent when a predetermined operating condition is satisfied. Specifically, when the over-current protection relay 140 satisfies a predetermined set value for over current (over currnet) in a power grid that fluctuates in real time, the breaker 142 operates to switch the relay 144 to control switching to cut off the over-current. It works.

The operating condition of the overcurrent protection relay 140 may be an operating condition set for each overcurrent breaker manufacturer. The operating conditions set for each of the overcurrent breaker manufacturers may be set by the time-current curve of FIG. 4. In the graph of FIG. 4, the time axis and the current axis are displayed on a logarithmic scale, and when the current over time in the power grid is equal to or greater than a predetermined preset value for over current (over currnet), it belongs to an over current generation region, and over current (over currnet) If it is less than a predetermined set value, it belongs to the safe area.

In marine installations or offshore vessels, a power management system (PMS) can be interconnected between a power generation system and a power consumption system. Whether the overcurrent flows in the power grid between the power generation system and the power consumption system can be checked through the protection relay 140. That is, the simulator 1 can verify the operation of the protective relay when an overcurrent occurs during simulation for the controller under test.

By installing a sufficient number of protective relays in a location to be tested, a controller test system including a protective relay according to an embodiment of the present invention operates in an organic connection with a power management system (PMS) in a marine facility or a marine vessel (another controller) Simulation may be performed in consideration of an operation or an operation condition with the second controller).

FIG. 5 is a table exemplarily showing other controllers operating in organic connection with a power management system (PMS) when the power management system (PMS) of the ship system is a target controller to be tested. 6 is a table showing examples of other controllers (second controllers) that operate in conjunction with a controller under test when the controller under test according to another embodiment of the present invention is an energy management system (EMS). 7 is another controller (second controller) operating in conjunction with a controller under test when the controller under test according to another embodiment of the present invention is a distribution automation system (DAS) or a power management system (PMS) in a distribution system. This is a table showing examples. 8 is a controller to be tested according to another embodiment of the present invention is operated in conjunction with a controller to be tested when a power management system (PMS) or an energy management system (EMS) in a microgrid including distributed power Is a table showing examples of other controllers (second controllers).

Referring to FIG. 5, in a ship system, a controller under test, that is, a second controller 520 operating in organic connection with a power management system (PMS) that is a first controller 510 is an over current relay (522) ), Over voltage relay (524), Under voltage relay (526), Over frequency relay (528), Under frequency relay (530), Over excitation relay (Over Excitation) relay, Under Excitation relay, Thruster load limitation controller, and / or Cargo pump load limitation controller.

The over current relay is a relay that operates when the magnitude of the current is equal to or greater than a set value, and performs overcurrent protection when an overcurrent is detected. Controllers to be tested, such as a power management system (PMS), taking into account the operating conditions of the over current relay by checking whether or not the operating conditions of the over current relay are satisfied or not. By testing (10), the controller under test 10 can be tested in a state closer to the actual situation. A detailed description will be described later with reference to FIG. 3.

The over voltage relay is a relay that operates when the magnitude of the voltage exceeds a set value or more, and performs an over voltage protection function when an over voltage is detected. A controller under test such as a power management system (PMS) considering the operating conditions of the over voltage relay by checking whether the operating conditions of the over voltage relay are satisfied or not. By testing (10), the controller under test 10 can be tested in a state closer to the actual situation.

The under voltage relay is a relay that operates when the magnitude of the voltage falls below a set value or less, and performs a low voltage protection function that opens and protects a circuit when a voltage drop occurs. Specifically, under voltage relay always monitors components of generators, transformers, busbars, lines, and other power systems through protection relays, and immediately detects failures or abnormalities in the power system. The protective relay operates to isolate the faulty part, thereby preventing power supply disruption and minimizing damage to the faulty device or facility. The reason for using the low-voltage protection function is to operate when the voltage of the circuit drops below the specified value of the low-voltage protection due to a short circuit accident or power failure, and is used for protecting the back-up during a short circuit and for separating the motor circuit during a power failure.

Power management system considering the operating conditions of the under voltage relay by checking whether the operating conditions of the under voltage relay (voltage drop below the set value or less) are not satisfied. By testing the controller under test 10 such as PMS), the controller under test 10 can be tested in a state closer to the actual situation.

The over frequency relay is a relay that operates when the frequency is higher than the set value, and the under frequency relay is a relay that operates when the frequency is lower than the set value. Check whether the operating conditions of the over frequency relay (the frequency is higher than the set value) are satisfied or not, and consider the operating conditions of the over frequency relay, such as the power management system (PMS). By testing the controller under test 10, the controller under test 10 can be tested in a state closer to the actual situation.

The over excitation relay calculates the overexcitation (over flux) state of the generator as a ratio of voltage and frequency (V / Hz) to protect the generator or transformer from excessive magnetic flux density. Power management system considering the operating conditions of over excitation relay by checking whether or not it satisfies or does not satisfy the operating conditions of over excitation relay (reactive power value is higher than the set value) By testing the controller 10 to be tested such as (PMS), the controller 10 to be tested can be tested in a state closer to the actual situation.

An under excitation relay is a relay that protects the characteristics of under excitation. Power management system considering the operating conditions of the under excitation relay by checking whether the operating conditions of the under excitation relay (active power vs. reactive power values are lower than the set value) are satisfied or not. By testing the controller 10 to be tested such as (PMS), the controller 10 to be tested can be tested in a state closer to the actual situation.

The Thruster load limitation controller is a controller that transmits a control signal for controlling the thruster load to the actuator. Test by testing the controller under test 10 such as a power management system (PMS) in consideration of the operating condition or error condition of the thruster load controller by checking whether the operating condition or error condition of the thruster load controller is satisfied or not. The target controller 10 can be tested in a state closer to the actual situation.

The cargo pump load limitation controller is a controller that transmits a control signal for controlling the cargo pump load to the actuator. Tested by testing the controller 10 to be tested, such as a power management system (PMS) in consideration of the operating conditions or error conditions of the cargo pump load controller by checking whether the operating conditions or error conditions of the cargo pump load controller are satisfied or not. The target controller 10 can be tested in a state closer to the actual situation.

According to another embodiment of the present invention, the second controller operating in organic connection with the power management system (PMS), which is the controller under test (the first controller), is other than the thruster load controller or the cargo pump load controller. It may include an actuator controller (or control system), a pump controller, a valve controller, and the like.

In addition, according to another embodiment of the present invention, the second controller operating in organic connection with the power management system (PMS), which is the controller under test (the first controller), includes power of drilling equipment, cranes, lifts, winches, etc. It may include a controller (or control system) for controlling the consumer.

The onboard control system provides control signals to actuators such as control devices and propulsors. The propellers may include ordinary propellers, tunnel thrusters or azimuth thrusters, or in some cases a mooring system designed to move offshore installations in the correct position. . In addition, control signals in this case may be provided to ballast pumps and associated valves to correct the roll angle or pitch angle.

For offshore installations or drilling rigs for oil production and drilling, drilling controllers (or control systems) are affected by both the vessel on which the drilling systems to be controlled are arranged and the drilling operations to be performed. Since drilling systems require a large amount of power, there is an interconnection between drilling control systems and ship's power management systems (PMS). All these systems must interact correctly to allow proper functioning of the ship as a whole during drilling operations.

According to embodiments of the present invention, when there is an interaction between the drilling control systems and the ship's power management system (PMS), the controller under test (the first controller), the ship's power management system (PMS) and the organic Tested in consideration of operating conditions (when it falls below a certain frequency or when it falls below a certain voltage) or error conditions (drilling shutdown or trip), which are other controllers (second controllers) operating in conjunction with By testing the target controller (first controller), the controller under test can be tested in a state closer to the actual situation. Here, a trip in an error condition means an open of a breaker used for drilling.

Drilling operations may include any operation performed during the preparation, drilling, and completion of a well from initial positioning of the drilling vessel until the well is ready for production. Malfunctions in one of the systems can affect all of the systems on the ships and can lead to major failures, which can lead to ship damage or serious environmental consequences. To avoid potentially damaging systems and to test for situations that are not only potentially destructive but also highly undesirable and rarely occur, they can potentially lead to potentially dangerous or harmful situations while the control systems are being separated from the systems they are trying to control. It is advantageous to test these control systems for possible situations.

If errors occur before and after drilling, it can lead to very expensive drilling shutdowns or worst-case machine failures. Due to the extremely high cost associated with the very small delays in oil production and drilling, it is of great economical and environmental importance to detect these problems and take appropriate corrective action before potential problems with the control systems arise. For this, by testing the controller under test (first controller) in consideration of the error condition (drilling shutdown or trip) of the drilling control systems, the controller under test can be tested in a state closer to the actual situation.

In addition, referring to FIG. 6, in a transmission power system, a second controller operating in organic connection with an energy management system (EMS) that is a controller under test, that is, a first controller 610 ( 620 is an over current relay (Over current relay, 622), over voltage relay (Over voltage relay, 624), under voltage relay (Over voltage relay, 626), over-frequency relay (over frequency relay, 628) and / or low-frequency relay ( under frequency relay, 630). The functions and operations of the overcurrent relay 622, overvoltage relay 624, undervoltage relay 626, overfrequency relay 628, and low frequency relay 630 of FIG. 6 are overcurrent relay 522 and overvoltage relay of FIG. (524), the under-voltage relay 526, the over-frequency relay 528, and the low-frequency relay 530 has the same practical functions, so the description is omitted.

In addition, referring to FIG. 7, in a distribution power system, a controller to be tested is operated in organic connection with a controller under test, that is, a distribution automation system (DAS), which is the first controller 710, or a power management system (PMS). 2 The controller includes over current relay (722), over voltage relay (724), under voltage relay (726), over frequency relay (728), and under frequency relay (under frequency). relay, 730, ancestor controller 732, and / or transformer tap controller 734. The functions and operations of the overcurrent relay 722, overvoltage relay 724, undervoltage relay 726, overfrequency relay 728, and low frequency relay 730 of FIG. 7 are overcurrent relay 522 and overvoltage relay of FIG. (524), the under-voltage relay 526, the over-frequency relay 528, and the low-frequency relay 530 has the same practical functions, so the description is omitted.

The ancestor serves to increase the power factor of the power system and reduce voltage loss by performing a phase modifying function that absorbs reactive power and adjusts the phase of the current. The ancestor is mainly installed in the primary substation, and it suppresses the rise of the voltage of the receiving end with ground current when there is no or light load in the entire voltage transmission system, and suppresses the drop of the receiving end voltage with the true current during heavy load to improve the power factor of the system. Reduce transmission loss.

The ancestor controller 732 is a controller that operates when the voltage value exceeds the set value in the power distribution system, and maintains an appropriate voltage to supply high-quality power and adjust reactive power in the power system for efficient use of power facilities. Is used.

The transformer tap controller 734 is used to secure an appropriate voltage in the power system by adjusting the transformer tap to control overvoltage or undervoltage.

In addition, referring to FIG. 8, in a microgrid including a distributed power source, the controller under test, that is, the first controller 810, a micro grid power management system (PMS) or an energy management system (EMS) and organically The second controller operating in conjunction with the over current relay (Over current relay, 822), over voltage relay (Over voltage relay, 824), under voltage relay (Over voltage relay, 826), over frequency relay (over frequency relay, 828) And / or an under frequency relay 830, a shunt controller 832, a transformer tap controller 834, a PV controller 836, an ESS controller 838 and / or a wind controller 840. You can. For example, an over current relay (822) in the microgrid prevents the spread of the system disturbance of distributed power due to the grid disturbance, and operates in conjunction with a controller under test in the microgrid. Considering the operating conditions of the over current relay (Over current relay 822), it is possible to perform a test closer to reality.

The functions and operations of the overcurrent relay 822, overvoltage relay 824, undervoltage relay 826, overfrequency relay 828, and low frequency relay 830 of FIG. 8 are overcurrent relay 522 and overvoltage relay of FIG. 524, the undervoltage relay 526, the over-frequency relay 528, and the low-frequency relay 530 has substantially the same function, the lifter controller 832 of FIG. 8, and the transformer tap controller 834 of the lifter of FIG. Since the practical functions of the controller 732 and the transformer tap controller 734 are the same, a description is omitted.

The photovoltaic (PV) controller 836 is a controller that controls a photovoltaic device that is a solar distributed power source. The wind controller 840 is a controller that controls a wind power generator that is a wind power distributed. The ESS controller 838 is a controller that controls an energy storage system (ESS), which is one of distributed power sources, and the energy storage device (ESS) has a lot of renewable energy or power consumption, such as solar and / or wind power. Save extra power in unused time zone.

According to another embodiment of the present invention, the controller under test (the first controller) may be a distributed power controller or a power management system (PMS) or an energy management system (EMS) in a virtual power plant (VPP). have. A virtual power plant (VPP) is a system that integrates, operates, controls and manages distributed energy resources (DER) such as renewable energy generation facilities and energy storage devices (ESS) using cloud-based software. . In this case, the second controller is an over current relay (822), an over voltage relay (824), an under voltage relay (Under voltage relay) that operates in organic connection with the controller to be tested (the first controller) described above. , 826), over frequency relay (828) and / or under frequency relay (830), phase controller (832), transformer tap controller (834), PV controller (836), ESS controller (838) ) And / or the wind controller 840.

According to embodiments of the present invention, a power management system (PMS) in a distribution power system, an energy management system (EMS) in a transmission power system, or a micro grid including distributed power Power management system (PMS) or energy management system (EMS) in a microgrid system, or distributed power controller or power management system (PMS) or energy management system (EMS) in a virtual power plant (VPP) In this case, a test closer to reality may be performed in consideration of an operation or an operating condition or an error condition of another controller that is organically connected to each controller under test.

Claims (20)

In the controller test system,
Including a simulator for performing a virtual dynamic analysis of the object controlled by the first controller based on at least one control signal required for dynamic analysis among a plurality of control signals output from the first controller to be tested,
The simulator performs a virtual dynamic analysis on an object controlled by the first controller in consideration of at least one of an operating condition and an error condition of the second controller operating in conjunction with the first controller. system. According to claim 1, When analyzing at least one of the operating conditions and error conditions of the second controller to analyze at least one of the operating conditions and error conditions of the second controller, the simulator is satisfied of the operating conditions and error conditions A controller test system characterized by performing a virtual dynamic analysis according to at least one. According to claim 3, If at least one of the operating conditions and error conditions of the second controller by analyzing at least one of the operating conditions and error conditions of the second controller, the simulator, the operating conditions of the second controller And a controller test system that performs dynamic analysis that does not reflect at least one of the error conditions. According to claim 1, The simulator
A control signal processor configured to filter a plurality of control signals received from the first controller to be tested and output at least one control signal necessary for the dynamic analysis;
A dynamic analysis performing unit configured to perform virtual dynamic analysis on an object controlled by the first controller based on at least one control signal necessary for the dynamic analysis; And
And a second controller operation check unit that analyzes the result of performing the dynamic analysis and analyzes at least one of an operating condition and an error condition of the second controller. The method of claim 4, wherein the second controller operation confirmation unit
A controller test system that delivers the dynamic analysis results to the first controller that is the test target. According to claim 4, The simulator
A controller test system further comprising a facility signal transmitting device 130 that delivers the dynamic analysis results to the first controller that is the test target. The method of claim 4, wherein at least one of the second controller operating condition and the error condition is satisfied by analyzing at least one of the operating condition and error condition of the second controller,
The second controller operation confirmation unit transmits at least one of the second controller operation condition and the error condition to the dynamic analysis execution unit,
The dynamic analysis performing unit performs a virtual dynamic analysis according to at least one of an operating condition and an error condition of the second controller with respect to an object controlled by the first controller to perform a dynamic analysis result to a first controller as a test target Controller test system, characterized in that to pass to. The method according to claim 4, wherein at least one of the operating condition and the error condition of the second controller is analyzed to not satisfy at least one of the operating condition and the error condition of the second controller,
The second controller operation confirmation unit does not transmit at least one of the second controller operation condition and the error condition to the dynamic analysis execution unit, and the dynamic analysis execution unit operates conditions of the second controller with respect to the object controlled by the first controller And an imaginary dynamic analysis that does not reflect at least one of the error conditions, and a result of performing dynamic analysis that does not reflect at least one of the operating conditions and error conditions of the second controller is transmitted to the first controller that is the test target. Characterized controller test system. The controller test system according to claim 1, wherein the operating condition of the second controller is an operating condition of the overcurrent protection relay. According to claim 1, The first controller is a power management system (PMS), the second controller is an over current relay (Over current relay), over voltage relay (Over voltage relay), under voltage relay (Under voltage relay), and Over frequency relay, under frequency relay, over excitation relay, under excitation relay, Thruster load limitation controller, and cargo pump load controller (Cargo pump load limitation controller) controller test system, characterized in that at least one. The controller test system of claim 1, wherein the first controller is a power management system, and the second controller is at least one of an in-vessel actuator controller, a pump controller, and a valve controller. The controller test system of claim 1, wherein the first controller is a power management system (PMS), and the second controller is a controller that controls the consumer of power. According to claim 1, The first controller is an energy management system (Energy Management System), the second controller is an over current relay (Over current relay), over voltage relay (Over voltage relay), under voltage relay (Under voltage relay), A controller test system, characterized in that it is at least one of an over frequency relay and an under frequency relay. The first controller is one of a Distribution Automation System (DAS) and a power management system (PMS), and the second controller is an over current relay, an over voltage relay, and an under voltage. A controller test system, characterized in that it is at least one of an under voltage relay, an over frequency relay, an under frequency relay, a phase controller and a transformer tap controller. The method of claim 1, wherein the first controller is a micro grid power management system (PMS) or an energy management system (EMS), and the second controller is an over current relay, an over voltage relay, and a shortage. Under voltage relay, over frequency relay, under frequency relay, lifter controller and transformer tap controller, photovoltaic (PV) controller, energy storage system (ESS) controller and A controller test system, characterized in that it is at least one of a wind controller. According to claim 1, The first controller is a distributed power controller in a virtual power plant (Virtual Power Plant), one of the power management system (Power Management System) and the energy management system (Energy Management System), the second controller is overcurrent Over current relay, Over voltage relay, Under voltage relay, Over frequency relay, Under frequency relay, Step controller and Transformer tap controller, PV ( A controller test system characterized by being at least one of a photovoltaic controller, an energy storage system (ESS) controller, and a wind controller. In the controller test method,
Receiving a plurality of control signals from a first controller under test in the simulator; And
And performing a virtual dynamic analysis on an object controlled by the first controller in the simulator based on at least one control signal required for dynamic analysis among the plurality of control signals.
A controller test characterized by performing a virtual dynamic analysis on an object controlled by the first controller in consideration of at least one of an operating condition and an error condition of the second controller operating in conjunction with the first controller in the simulator Way. 18. The method of claim 17, If at least one of the operating condition and the error condition of the second controller is satisfied by analyzing at least one of the operating condition and the error condition of the second controller, the simulator satisfies the operating condition and the error condition. A controller test method characterized by performing a virtual dynamic analysis according to at least one. 18. The method of claim 17, If at least one of the operating condition and the error condition of the second controller is analyzed and the at least one of the operating condition and the error condition of the second controller is not satisfied, the simulator operates the operating condition of the second controller. And a dynamic analysis that does not reflect at least one of the error conditions. 19. The method of claim 18, wherein the operating condition of the second controller is an operating condition of the overcurrent protection relay.

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