JP2016152761A - Single operation power generating station control system and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress full outage and also enable appropriate power supply.SOLUTION: When any power generator of power generators G1 to Gn stops power generation because of a failure, a distribution line breaker controller 3 interrupts one or some of distribution line breakers 52F1 to 52Fn so that the sum of load power is equal to or lower than the sum of capacity of power generators generating power of the power generators G1 to Gn except the failing power generators of the power generators G1 to Gn. A power generator controller 4 actuates a power generator in a standby state of the power generators G1 to Gn to make the actuated power generator start power generation. The distribution line breaker controller 3, then, turns on one or some of the interrupted breakers of the distribution line breakers 52F1 to 52Fn so that the sum of the load power, in the case of turning on the one or some of the interrupted breakers of the distribution line breakers 52F1 to 52Fn, is equal to or lower than the sum of capacity of power generators generating power of the power generators G1 to Gn, on the basis of load power measured by load power measurement instruments 2 immediately before the interruption of the one or some of distribution line breakers 52F1 to 52Fn.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control system and a control program for a single operation power plant that controls a generator and a circuit breaker in the single operation power plant.

  For example, in a power control system with a single operation system using an internal combustion power generator on a remote island, the person in charge of remote monitoring control is constantly monitoring and performing manual control. It is carried out. First, a watch person determines whether the generator is started or stopped while observing the load status, and controls the number of generators operated. Secondly, when the generator has a minor failure (temperature rise, etc.), the duty staff confirms the failure status and immediately switches the operation to the standby generator. Third, if the generator has a serious failure (power generation stopped), the generator breaker (52G) of this generator will trip and the remaining generator will be overloaded and shut off. Transition to power outage. Fourthly, when a total power failure occurs, the duty staff must perform a recovery operation from the total power failure.

  However, in recent years, reduction measures against power outages have been strongly demanded, and the burden on the duty has increased. For this reason, there is known an automatic operation system for a regular generator that enables a healthy generator to be started automatically and promptly at the time of all stops due to an accidental stop of one generator (for example, (See Patent Document 1). This system is provided with means for storing the total load power amount immediately before the total stop, and automatically starts up the number of generators corresponding to the total load power amount at the time of the total stop.

Japanese Patent Laid-Open No. 09-103098

  By the way, when a generator breaker breaks due to a major failure of one generator during a common operation of a plurality of generators, there is a high possibility that the balance between demand and supply will be lost and a total power failure will occur. In the event of a total power outage, the recovery operation is extremely difficult, and the burden on the duty is not only large, but also the social impact of continuing the power outage is great. On the other hand, in the system of Patent Document 1, although a healthy generator can be started automatically and promptly after a complete power failure, the power failure itself cannot be avoided or suppressed. Burden and social impact cannot be reduced.

  Therefore, an object of the present invention is to provide a control system and a control program for an independently operated power plant that suppresses all blackouts and further enables an appropriate power supply.

  In order to solve the above-mentioned problem, the invention of claim 1 is a control system for an independent operation power plant that controls various devices in an independent operation system including a plurality of generators, and measures load power of each distribution line. Load power measuring means for storing, distribution line circuit breaker control means for controlling distribution line breakers arranged in each distribution line, and generator control means for controlling each generator. When any one of the generators is stopped due to a failure, the distribution line breaker control means is configured such that the sum of the load powers is equal to or less than the sum of the capacities of the generators during power generation excluding the failed generator. So that the distribution line breaker is cut off, and the generator control means starts a power generator by starting a standby generator, and then the distribution line breaker control means The load power just before breaking the circuit breaker Based on the load power measured by the measuring means, the interruption was performed in a range where the sum of the load power when the interrupted distribution line breaker was turned on was less than or equal to the sum of the capacities of the generators being generated. A circuit breaker for distribution lines is inserted.

  According to the present invention, when one of the generators stops generating due to a failure, the distribution line circuit breaker is shut off so that the total load power is equal to or less than the total sum of the capacities of the generators that are generating power. That is, the load is divided (limited) so as to match the total capacity of the generator that is generating power. Furthermore, when power generation by a generator that is on standby (not generating power) is started and the circuit breaker for a distribution line that has been interrupted is inserted based on the load power of each distribution line immediately before the circuit breaker for the distribution line is disconnected In the range where the total load power is less than or equal to the total capacity of the generators that are generating power, the breaker for the distribution line that has been cut off is inserted. That is, as much as the total capacity of the generator during power generation is met, the interrupted distribution line circuit breaker is inserted to restore the power supply (load).

  According to a second aspect of the present invention, in the control system according to the first aspect, the distribution line breaker control means breaks the distribution line breaker in the order of distribution lines having a large load power. .

  The invention according to claim 3 is a control program for an independent operation power plant that controls various devices in an independent operation system including a plurality of generators, and stores a measured load power of each distribution line in a computer. Any one of the generators, functioning as distribution line circuit breaker control means for controlling distribution line breakers arranged in each distribution line, and generator control means for controlling each generator. When the power generation is stopped due to a failure, the distribution line circuit breaker control means is arranged so that the total load power is equal to or less than the total capacity of the generators that are generating power excluding the failed generator. The circuit breaker for the electric wire is cut off, and the generator control means starts a power generator that is on standby to start power generation, and then the circuit breaker control means for the distribution line interrupts the circuit breaker for the distribution line. Stored in the storage means immediately before On the basis of the load power, the interrupted distribution line breaker is within a range in which the sum of the load power when the interrupted distribution line breaker is turned on is less than or equal to the sum of the capacities of the generators during power generation. It is characterized in that.

  According to a fourth aspect of the present invention, in the control program according to the third aspect, the distribution line breaker control means breaks the distribution line breaker in the order of distribution lines having the largest load power. .

  According to the first and third aspects of the present invention, when any of the generators stops generating power, the load is divided to match the total capacity of the generator that is generating power, so that the balance between supply and demand is maintained appropriately. Is done. For this reason, it becomes possible to prevent and suppress the total power failure due to the remaining generators during power generation being overloaded. In addition, power generation by the standby generator is started, and the power supply is restored by switching on the interrupter for the distribution line that has been cut off as much as the total capacity of the generator that is generating power. It becomes possible to do.

  As a result, it is possible to avoid spillover to all blackouts, reduce the recovery time from all blackouts, reduce the duty recovery operation, and prevent erroneous operations due to misjudgment. Can be suppressed. Similarly, automatic start-up of the generator and automatic power transmission to the distribution line can reduce the time required for grasping the current situation and recovery time of the power outage, reduce the recovery operation of the duty staff, and further, due to misjudgment Misoperations can be prevented / suppressed. In this way, the stability and reliability of power supply can be improved.

  According to invention of Claim 2 and Claim 4, since the circuit breaker for distribution lines is interrupted in order of the distribution line with large load electric power, it prevents and suppresses a total power failure more, and it becomes more consumers and load. It becomes possible to continue power supply.

It is a figure which shows the electric power grid | system to which the control system of the independent operation power plant which concerns on embodiment of this invention was applied. It is a 1st flowchart which shows the control flow by the control system of FIG. FIG. 3 is a second flowchart showing a continuation of FIG. 2. FIG. FIG. 4 is a third flowchart showing the continuation of FIG. 2 and FIG. 3. FIG. 5 is a fourth flowchart showing a continuation of FIG. 3 and FIG. 4.

  The present invention will be described below based on the illustrated embodiments.

  FIG. 1 is a diagram showing an electric power system to which a control system 1 for an independently operated power plant according to an embodiment of the present invention is applied. This control system 1 is a control system for controlling various devices in an isolated operation system including a plurality of generators G1 to Gn, and mainly includes a load power measuring device (load power measuring means) 2 and a distribution line breaker control. A device (distribution line breaker control means) 3, a generator control device (generator control means) 4, and a generator breaker control device 5 are provided.

  Here, each of the generators G1 to Gn is provided with a generator breaker 52G1 to 52Gn, and each of the distribution lines L1 to Ln is provided with a distribution line breaker 52F1 to 52Fn. The generators G1 to Gn and the distribution lines L1 to Ln are connected via a bus L0. Note that “n” represents an arbitrary number.

  The load power meter 2 is a device that measures and stores the load power of the distribution lines L1 to Ln, and is disposed in each of the distribution lines L1 to Ln. In this embodiment, the supplied load power is measured and stored periodically (every 5 seconds).

The distribution line circuit breaker control device 3 controls the distribution line circuit breakers 52F1 to 52Fn disposed in the distribution lines L1 to Ln, and the generator control device 4 controls the generators G1 to Gn. The device and the generator breaker control device 5 are devices for controlling the generator breakers 52G1 to 52Gn of the generators G1 to Gn,
When any one of the generators G1 to Gn is stopped due to a serious failure (when the generator breakers 52G1 to 52Gn are tripped), the distribution line breaker control device 3 has a total load power failure. The power distribution circuit breakers 52F1 to 52Fn are shut off so that the capacity of the generators G1 to Gn excluding the generators G1 to Gn is less than the sum of the capacities, and the generator control device 4 is in a standby state (standby). Start the power generation by starting the generators G1 to Gn,
Thereafter, the distribution line circuit breaker control device 3 cuts off the distribution line breaker 52F1 based on the load power measured and stored by the load power measuring device 2 immediately before breaking the distribution line breakers 52F1 to 52Fn. The distribution line breakers 52F1 to 52Fn that have been cut off are introduced in a range in which the sum of the load power when the? 52Fn is turned on is less than the sum of the capacities of the generators G1 to Gn that are generating power.
Is.

  That is, when any one of the generators G1 to Gn is stopped due to a failure, first, as a load dividing process, the distribution line breaker control device 3 calculates the total load power (total) to the distribution lines L1 to Ln. The distribution line circuit breakers 52F1 to 52Fn are cut off so as to be equal to or less than the sum of the capacities of the generators G1 to Gn during power generation (excluding standby) except for the failed generators G1 to Gn. At this time, in this embodiment, the distribution line breakers 52F1 to 52Fn are cut off in the order of the distribution lines L1 to Ln having the largest load power. Moreover, the sum total of the load electric power to the distribution lines L1-Ln is calculated based on the load electric power measured and memorize | stored by each load electric power measuring device 2 immediately before and immediately.

  At the same time, as the generator activation process, the generator controller 4 activates the sound generators G1 to Gn that are on standby to start power generation. That is, in this embodiment, power generation by all the generators G1 to Gn other than the failed generators G1 to Gn is started. Here, the fact that the generators G <b> 1 to Gn have stopped generating power is detected by another system / device, and the detection result is transmitted / transmitted to the control system 1.

  Next, the load power measured and stored by each load power measuring device 2 immediately before the distribution line circuit breakers 52F1 to 52Fn is interrupted by the load dividing process by the distribution line circuit breaker control device 3 as the circuit breaker charging process. Based on the above, even if the interrupted distribution line breakers 52F1 to 52Fn are turned on, the interrupted distribution line interrupts within the range where the total load power is less than the total sum of the capacities of the generators G1 to Gn that are generating power The devices 52F1 to 52Fn are turned on. That is, since the total sum of the capacities of the generators G1 to Gn that are being generated has increased due to the generator start-up process, the sum of the load power after the circuit breaker is turned on again is determined based on the load power before the load isolation process. The interrupted distribution line circuit breakers 52F1 to 52Fn are reintroduced within a range that is less than or equal to the sum of the capacities (power generation amounts) of the machines G1 to Gn.

  Specifically, as shown in FIG. 2, the load power of each of the distribution lines L1 to Ln is set to 5 by each load power measuring device 2 at the normal time when two or more generators G1 to Gn are generating or operating. Measured and stored every second (step S1), and when one of the generators G1 to Gn has a major fault and stops generating power (step S2), the following load isolation process or the like (major fault process) is performed ( Step S3). At this time, the function operation and the like (operation status) for load separation are sequentially displayed on the display (step S4), and the reclosing relays of the distribution line circuit breakers 52F1 to 52Fn are locked (step S5). Here, load power is large in the order of distribution lines L1, L2-Ln, and two or more generators G1-Gn are generating electricity, and one or more healthy generators G1-Gn are waiting. Will be described below.

  In the load isolation process, as shown in FIG. 3, first, the sum of the rated capacities (rated power generation amounts) of the generators G1 to Gn that are generating power except for the failed generators G1 to Gn is immediately before (5 seconds before). It is judged whether it is smaller than the sum total of the load electric power of these distribution lines L1-Ln (step S6). As a result, if it is not small, that is, if the power generators G1 to Gn that are generating power can supply power to all the distribution lines L1 to Ln, the process proceeds to step S30 described later. On the other hand, if it is determined in step S6 that it is small, the distribution line breaker control device 3 transmits a break command to the first distribution line breaker 52F1, and receives this to receive the first distribution line breaker. 52F1 shuts off (step S7).

  Subsequently, whether or not the sum of the rated capacities of the generators G1 to Gn during power generation excluding the failed generators G1 to Gn is smaller than the sum of the load powers of the distribution lines L2 to Ln excluding the first distribution line L1. In other words, it is determined whether or not the load power is smaller than the load power obtained by subtracting the load power of the first distribution line L1 immediately before (5 seconds before) from the total load power in Step S6 (Step S8). As a result, when it is not small, that is, when the power generators G1 to Gn that are generating power can supply power to the distribution lines L2 to Ln, the load dividing process is terminated. On the other hand, if it is determined in step S8 that it is small, the distribution line breaker control device 3 transmits a break command to the second distribution line breaker 52F2 to block it (step S9).

  In this way, until the generators G1 to Gn that are generating power can supply power to the distribution lines L1 to Ln, in other words, the total load power to the distribution lines L1 to Ln is the generators G1 to G1 that are generating power. The distribution line circuit breakers 52F1 to 52Fn are sequentially cut off in the order of the distribution lines L1 to Ln having a large load power until the total rated capacity of Gn is reached.

  Therefore, it is determined whether or not the sum of the rated capacities of the generators G1 to Gn during power generation is smaller than the sum of the load power of the distribution lines Ln excluding the distribution lines L1 to L (n-1) (step S10). If it is determined that the current is small, the distribution line breaker control device 3 transmits a break command to the nth distribution line breaker 52Fn to block it (step S11).

  In parallel with such load isolation processing, generator activation processing is executed. That is, as shown in FIG. 4, the generator control device 4 activates the standby healthy generators (excluding generators that are already generating power and generators that are seriously broken) G1 to Gn to start power generation. Along with (Step S12), the generator breaker control device 5 puts in the generator breakers 52G1 to 52Gn of these generators G1 to Gn (Step S13). Subsequently, a timer for a predetermined time is set (step S14). After the timer expires, the following circuit breaker closing process is executed. Here, the time of the timer is set to a time (for example, 20 seconds) in which the generators G1 to Gn in Steps S12 and S13 can start power generation and supply power, and may be arbitrarily changed.

  In the circuit breaker charging process, first, when the first distribution circuit breaker 52F1 is not blocked by the load dividing process (in the case of “No” in step S15), the process proceeds to step S30. On the other hand, when the first distribution circuit breaker 52F1 is cut off (in the case of “Yes” in step S15), the sum of the rated capacities of the generators G1 to Gn that are generating power is immediately cut off ( 5 seconds before) is equal to or greater than the total load power obtained by adding the load power of the first distribution line L1 and the load power of the distribution lines L1 to Ln that are currently supplied (not cut off), that is, waiting It is determined whether or not the generators G1 to Gn are activated to supply power to the first distribution line L1 (step S16). Here, in order to determine that power can be reliably supplied, it is determined whether or not the total rated capacity is larger than 1.1 times the total load power.

  As a result, if the total rated capacity is not greater than 1.1 times the total load power, the process proceeds to step S20. On the other hand, when it is larger than 1.1 times and the first distribution line breaker 52F1 is blocked in step S7 (when passing through the AND circuit R1), the distribution line breaker control device 3 Then, the reclosing relay of the first distribution line circuit breaker 52F1 is unlocked (step S17), and the first distribution line circuit breaker 52F1 is inserted (step S18). Subsequently, a timer for a predetermined time is set (step S19), and after the timer expires, the process proceeds to step S20. Here, the time of the timer is set to a time (for example, 65 seconds) at which the power supply is stabilized after the first distribution line breaker 52F1 is turned on, and may be arbitrarily changed. Here, the symbol R2 in FIGS. 4 and 5 indicates an OR circuit.

  Next, when the second distribution circuit breaker 52F2 is not blocked by the load dividing process (in the case of “No” in Step S20), the process proceeds to Step S30. On the other hand, when the second distribution circuit breaker 52F2 is cut off (in the case of “Yes” in step S20), as shown in FIG. 5, the total rated capacity of the generators G1 to Gn during power generation is Whether the load power of the second distribution line L2 immediately before being cut off (5 seconds before) and the load power of the distribution lines L1 to Ln currently being supplied (not cut off) are equal to or greater than the total load power That is, it is determined whether or not the standby generators G1 to Gn are activated to supply power to the second distribution line L2 (step S21). Here, when the first distribution line breaker 52F1 is turned on in step S18, the first distribution line L1 is also included in the distribution lines L1 to Ln currently being supplied. Further, similarly to step S16, it is determined whether or not the total rated capacity is larger than 1.1 times the total load power.

  As a result, if the total rated capacity is not greater than 1.1 times the total load power, the process proceeds to step S25. On the other hand, when it is larger than 1.1 times and the second distribution line breaker 52F2 is blocked in step S9 (when passing through the AND circuit R1), the distribution line breaker control device 3 Then, the reclosing relay of the second distribution line breaker 52F2 is unlocked (step S22), and the second distribution line breaker 52F2 is turned on (step S23). Subsequently, a timer for a predetermined time is set (step S24), and after the timer expires, the process proceeds to step S25.

  In this way, the interrupted distribution line circuit breakers 52F1 to 52Fn are sequentially reintroduced within a range where the total load power of the distribution lines L1 to Ln is equal to or less than the total rated capacity of the generators G1 to Gn being generated. Therefore, when the n-th distribution line circuit breaker 52Fn is cut off (in the case of “Yes” in step S25), the total rated capacity of the generators G1 to Gn that are generating power is immediately cut off (5 seconds before). ) Of the nth distribution line Ln and the load power of the distribution lines L1 to Ln that are currently being supplied (not cut off), that is, the generator G1 on standby It is determined whether or not the power supply to the nth distribution line Ln can be covered by the activation of .about.Gn (step S26).

  As a result, if the total rated capacity is not greater than 1.1 times the total load power, the process proceeds to step S30. On the other hand, if it is larger than 1.1 times and the n-th distribution line breaker 52Fn is blocked in step S11 (when passing through the AND circuit R1), the distribution line breaker control device 3 The reclosing relay of the n-th distribution line circuit breaker 52Fn is unlocked (step S27), and the n-th distribution line circuit breaker 52Fn is turned on (step S28). Subsequently, a timer for a predetermined time is set (step S29), and after the timer expires, the process proceeds to step S30.

  Thus, since the total load power of the distribution lines L1 to Ln is within the range of the total rated capacity of the generators G1 to Gn that are generating power, the distribution line breakers 52F1 to 52Fn that can be loaded are inserted. The distribution line circuit breakers 52F1 to 52Fn may be turned on, but the other distribution line breakers 52F1 to 52Fn may not be turned on. For example, there may be a situation in which the distribution line breaker 52F1 of the first distribution line L1 having the largest load power is not turned on, but the second distribution line breaker 52F2 is turned on.

  In step S30, the reclosing relays of all the distribution line circuit breakers 52F1 to 52Fn are unlocked, and the load isolation processing and the like (major fault processing) are completed (step S31). The completion is displayed on the display (step S32).

  As described above, according to the control system 1 for an independently operated power plant, when any of the generators G1 to Gn stops generating power, first, the generator G1 to Gn is allocated so as to meet the total capacity of the generators G1 to Gn that are generating power. Since the electric circuit breakers 52F1 to 52Fn are interrupted and the load is separated, the balance between the demand and the supply is properly maintained. For this reason, it becomes possible to prevent and suppress the total power failure caused by the remaining power generators G1 to Gn during power generation being overloaded. In addition, power generation by the generators G1 to Gn in standby is started, and the distribution line circuit breakers 52F1 to 52Fn that have been cut off are inserted to meet the increased total capacity of the generators G1 to Gn that are generating power, and power is supplied. Since it is recovered, it is possible to maintain an appropriate power supply. In addition, since the distribution line breakers 52F1 to 52Fn are blocked in the order of the distribution lines L1 to Ln having the largest load power, the entire power failure is further prevented / suppressed, and the power supply to more consumers and loads is continued. It becomes possible.

  As a result, it is possible to avoid spillover to all blackouts, reduce the recovery time from all blackouts, reduce the duty recovery operation, and prevent erroneous operations due to misjudgment. Can be suppressed. Similarly, by automatically starting the generators G1 to Gn and automatically transmitting power to the distribution lines L1 to Ln, it is possible to reduce the current grasping time and the power failure recovery time, and reduce the duty recovery operation. Furthermore, it is possible to prevent or suppress erroneous operations due to erroneous determination. In this way, the stability and reliability of power supply can be improved.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in the load separation process, the distribution line breakers 52F1 to 52Fn are sequentially blocked in the order of the distribution lines L1 to Ln with the large load power. However, the rated capacities of the generators G1 to Gn that are generating power, Based on the load power of each of the electric wires L1 to Ln, the total load power after breaking the breaker is closest to the total rated capacity of the generators G1 to Gn that are generating power (so that power can be supplied to the maximum). In addition, the distribution line breakers 52F1 to 52Fn may be selected and blocked.

  Moreover, you may make it acquire the effect equivalent to this control system 1 by installing the control program of the following independent operation power plants in the control computer of an independent operation power plant.

That is, a control program for a single operation power plant that controls various devices in a single operation system including a plurality of generators G1 to Gn, the computer comprising:
Storage means for storing the measured load power of each of the distribution lines L1 to Ln;
Distribution line breaker control means (distribution line breaker control device 3) for controlling distribution line breakers 52F1 to 52Fn arranged in each distribution line L1 to Ln;
Function as generator control means (generator control device 4) for controlling each generator G1 to Gn,
When any of the generators G1 to Gn is stopped due to a failure, the distribution line breaker control means is configured such that the total load power of the generators G1 to Gn that are generating power except the failed generators G1 to Gn. The distribution line circuit breakers 52F1 to 52Fn are blocked so that the total capacity is less than or equal to the total capacity, and the generator control means starts the generators G1 to Gn on standby to start power generation,
After that, when the distribution line breaker control means puts in the interrupted distribution line breakers 52F1 to 52Fn based on the load power stored in the storage means immediately before breaking the distribution line breakers 52F1 to 52Fn The distribution line circuit breakers 52F1 to 52Fn that have been cut off are introduced in such a range that the total sum of the load power of the generators is equal to or less than the sum of the capacities of the generators G1 to Gn that are generating power.

  Here, a memory | storage means receives and memorize | stores the load electric power of each distribution line L1-Ln measured by each load electric power measuring device 2 from each load electric power measuring device 2, etc., for example.

1 Control system for an independently operated power plant 2 Load power meter (load power measuring means)
3. Distribution line breaker control device (distribution line breaker control means)
4. Generator control device (generator control means)
5 Generator circuit breaker control device G1 to Gn Generator L1 to Ln Distribution line 52G1 to 52Gn Generator circuit breaker 52F1 to 52Fn Distribution line breaker

Claims (4)

A control system for an independently operated power plant that controls various devices in an independently operated system including a plurality of generators,
Load power measuring means for measuring and storing the load power of each distribution line; and
Distribution line breaker control means for controlling distribution line breakers arranged in each distribution line,
Generator control means for controlling each of the generators,
When any of the generators has stopped generating due to a failure, the distribution line breaker control means is configured such that the sum of the load power is equal to or less than the sum of the capacities of the generators during power generation excluding the failed generator. So that the circuit breaker for the distribution line is cut off, and the generator control means starts the power generator by starting the generator in standby,
After that, when the distribution line breaker control means puts the broken distribution line breaker on the basis of the load power measured by the load power measurement means immediately before breaking the distribution line breaker In the range where the sum of the load electric power is less than or equal to the sum of the capacities of the generators that are generating power, the circuit breaker for the distribution line that has been cut off is inserted.
A control system for an independently operated power plant. The distribution line breaker control means breaks the distribution line breaker in the order of distribution lines with large load power,
The control system for an independently operated power plant according to claim 1. A control program for a single operation power plant that controls various devices in a single operation system including a plurality of generators, the computer,
Storage means for storing the measured load power of each distribution line;
Distribution line breaker control means for controlling distribution line breakers arranged in each distribution line,
Function as a generator control means for controlling each generator,
When any of the generators has stopped generating due to a failure, the distribution line breaker control means is configured such that the sum of the load power is equal to or less than the sum of the capacities of the generators during power generation excluding the failed generator. So that the circuit breaker for the distribution line is cut off, and the generator control means starts the power generator by starting the generator in standby,
Thereafter, the distribution line circuit breaker control means, based on the load power stored in the storage means immediately before breaking the distribution line breaker, when the interrupted distribution line breaker is turned on In the range where the sum of the load power is less than or equal to the sum of the capacities of the generators that are generating power, the circuit breaker for the distribution line that has been cut off is inserted
A control program for an independently operated power plant. The distribution line breaker control means breaks the distribution line breaker in the order of distribution lines with large load power,
The control program for an independently operated power plant according to claim 3.

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