Power generation system

Abstract

This invention provides a power generation system capable of performing load tests, etc., considering the state of the power generation device. The power generation system 1 includes: a power generation unit 10, comprising a power generation device 17; a load testing unit 30, having a resistance unit 31 and an interruption unit 35, and configured separately from the power generation unit 10; a first information acquisition unit 50, comprising a power generation-side detection device and a first communication unit 57, wherein the power generation-side detection device is disposed in the power generation unit 10 and detects specific information of the power generation unit 10, and the first communication unit 57 transmits at least one of the information obtained from the power generation-side detection device and total information generated based on the information obtained from the power generation-side detection device; and a second information acquisition unit 60, comprising a second communication unit 67, disposed in the load testing unit 30, and receiving at least one of the information obtained from the power generation-side detection device and the total information. The interruption unit 35 controls the power supply from the power generation device 17 to the resistance unit 31. The second information acquisition unit 60 performs at least one of controlling the interruption unit 35 based on the information obtained from the power generation-side detection device and outputting the total information.

Description

Technical Field

[0001] The present invention relates to a power generation system and the like. Prior Art

[0002] Conventionally, as shown in Patent Document 1, a load test device has been proposed that performs shutdown control based on internal information. [Prior Art Document] [Patent Document]

[0003] Patent Document 1: Japanese Patent Application Publication No. 5551324 Summary of the Invention

[0004] [Problems to be Solved by the Invention]

[0005] However, the possibility of abnormality occurring on the power supply (power generation device) side of the test object is not considered.

[0006] Therefore, an object of the present invention is to provide a power generation system that can perform load testing, etc., taking into account the status of the power generation device. [Organizations for solving problems]

[0007] The power generation system of the present invention includes: a power generation section including a power generation device; a load testing section having a resistance section and a blocking section, and being a separate entity from the aforementioned power generation section; a first information acquisition section including a power generation side detection device and a first communication section, the power generation side detection device being provided in the power generation section and detecting specific information of the power generation section, the first communication section transmitting at least one of information obtained by the power generation side detection device and aggregate information generated based on the information obtained by the power generation side detection device; and a second information acquisition section including a second communication section, which is provided in the load testing section and receives information obtained by the power generation side detection device and at least one of the aforementioned aggregate information. The blocking unit controls the supply of electric power from the power generating device to the resistor unit. The second information acquisition unit performs at least one of controlling the blocking unit based on the information obtained by the power generation side detection device and outputting the total information.

[0008] Based on information regarding abnormalities in the power generation unit (at least information obtained by the power generation side detection device), the load test unit is shut down. This reduces the load on the abnormal power generation unit and prevents the abnormality from worsening. Based on the information about the abnormality of the power generation unit, the aggregated information is output, thereby enabling the user to detect the abnormality at an early stage.

[0009] Preferably, the first communication unit transmits the information to the second communication unit by power line communication using a power line used when power is supplied from the power generating device to the resistor unit.

[0010] Since information is transmitted using the power line connected between the power generation device and the resistor unit, wiring can be simplified.

[0011] It is further preferred that the first communication unit transmits the aforementioned information to the second communication unit via wireless communication and power line communication.

[0012] By transmitting information through both power line communication and wireless communication, even if one of the power line communication and wireless communication is temporarily unable to communicate information, the information can continue to be transmitted by using the other power line communication or wireless communication.

[0013] More preferably, the resistor portion includes a plurality of resistor devices. The power generation side detection device detects the electric power of the power generation device. The second information acquisition unit includes a load test side detection device for detecting the power of the resistor unit. The power generation device is electrically connected to the load testing portion and a load portion different from the load testing portion. In a state where power can be supplied from the power generation device to both the load test unit and the load unit, the second information acquisition unit controls the resistance device that supplies power from the power generation device among the plurality of resistance devices based on at least information related to the power of the power generation device obtained by the power generation side detection device and information related to the power of the resistance unit obtained by the load test side detection device.

[0014] The load test unit can also be used for purposes other than load testing. The load factor of the power generation system is easily maintained close to a specific value (load factor reference value), allowing the power generation unit to operate efficiently.

[0015] It is further preferred that the power generation side detection device detects the current, voltage, and frequency of the power generation device. The load test side detection device detects the current, voltage, and frequency of the resistance part. In a state where power is not supplied from the power generation device to the load portion and power can be supplied from the power generation device to the load testing portion, the second information acquisition portion controls the blocking portion based on information related to the current, voltage, and frequency of the power generation device obtained by the power generation side detection device and information related to the current, voltage, and frequency of the resistor portion obtained by the load testing side detection device.

[0016] If an abnormality occurs, the difference in at least one of the current, voltage, and frequency will increase. Therefore, based on these detection results, the load test unit is shut down to allow the user to discover the abnormality.

[0017] It is further preferred that the difference between the current of the power generation device and the current of the resistor part is smaller than the current difference threshold, the difference between the voltage of the power generation device and the voltage of the resistor part is also smaller than the voltage difference threshold, and the difference between the frequency of the power generation device and the frequency of the resistor part is smaller than the frequency difference threshold, and the second information acquisition unit controls the resistor device among the multiple resistor devices that supplies power from the power generation device.

[0018] In the absence of abnormal conditions, the load test section can be used to adjust the load.

[0019] Furthermore, it is preferred that the power generation side detection device detects the current, voltage, and frequency of the power generation device. The second information acquisition unit includes a load test side detection device that detects the current, voltage, and frequency of the resistor unit. When power can be supplied from the power generation device to the load test unit, the second information acquisition unit controls the blocking unit based on information related to the current, voltage, and frequency of the power generation device obtained by the power generation side detection device and information related to the current, voltage, and frequency of the resistor unit obtained by the load test side detection device.

[0020] It is further preferred that the specific information includes at least one of the temperature, sound, humidity, air pressure, carbon dioxide content in the air, oxygen content in the air, and whether there is a specific substance (e.g., burnt substance) in the air at a predetermined location of the power generation unit. The first information acquisition unit acquires image information of an area including at least a portion of a predetermined position. The output of the aggregate information includes image information.

[0021] The temperature information at a specific location in the power generation unit (such as the power generation device) can be used to determine whether an abnormality has occurred. Furthermore, it is possible to determine whether any one of the power generation unit and the load test unit is malfunctioning based on the temperature information at a predetermined position of the power generation unit and the temperature information at a predetermined position of the load test unit. Furthermore, since the aggregate information includes image information, it is possible to visually identify whether an abnormality has occurred using the image information. [Effects of the Invention]

[0022] As described above, according to the present invention, a power generation system can be provided that can perform load testing, etc., taking into account the status of the power generation device. Simple diagram description

[0023] FIG1 is a block diagram of a power generation system according to a first embodiment. FIG2 is a block diagram of a power generation system according to a second embodiment. Implementation Method

[0024] The first embodiment will be described below using diagrams. Furthermore, the embodiments are not limited to the following. In principle, the contents described in one embodiment are also applicable to other embodiments. In addition, the embodiments and modifications can be combined as appropriate.

[0025] (Power Generation System 1) The power generation system 1 of the first embodiment includes a power generation unit 10, a load test unit 30, a first information acquisition unit 50, a second information acquisition unit 60, and a load unit 90 (see FIG. 1).

[0026] (Power Generation Unit 10) The power generation unit 10 includes: an engine 11; a radiator 15; a fan 13; and a power generation device 17.

[0027] The engine 11 generates a rotational force based on explosive power of gas such as gasoline, and applies the rotational force to the power generation device 17 . The radiator 15 performs heat exchange with the cooling water flowing through the interior of the engine 11 . The fan 13 sends cooling air to the radiator 15 . The power generation device 17 converts the rotational force obtained from the engine 11 into electric power. The electric power generated by the power generation is supplied to the electrical equipment (the load test unit 30 and the load unit 90 ) connected to the power generation device 17 .

[0028] (Load test unit 30) The load test section 30 includes a resistor section 31 , a cooling section 33 , a blocking section 35 , a relay section 37 , and an operating section 39 . In the first embodiment, the load test section 30 is used not only for load testing of the power generation section 10 but also for load factor adjustment during normal operation other than load testing.

[0029] (Resistor 31) The resistor section 31 includes a first resistor group 31a, a second resistor group 31b, and a third resistor group 31c. The first resistor group 31 a includes a plurality of resistor devices each including one or more resistor elements. The second resistor group 31b includes a plurality of resistor devices each including one or more resistor elements. The third resistor group 31c includes a plurality of resistor devices each including one or more resistor elements.

[0030] In the first embodiment, the resistor elements included in the resistor devices of the first resistor group 31a, the second resistor group 31b, and the third resistor group 31c are composed of resistors. However, the resistor may be formed of a power storage device such as a battery that stores the power supplied from the power generation device 17. Alternatively, the resistor portion 31 may be formed of an electrolysis device that electrolyzes the electrolyte based on the power supplied from the power generation device 17 .

[0031] One terminal of each resistor device of the first resistor group 31 a is connected to the R-phase terminal of the power generation device 17 via the blocking portion 35 . One terminal of each resistor device of the second resistor group 31 b is connected to the S-phase terminal of the power generation device 17 via the interrupter 35 . One terminal of each resistor device of the third resistor group 31 c is connected to the T-phase terminal of the power generation device 17 via the blocking portion 35 . The other terminal of each resistor device of the first resistor group 31a, the other terminal of each resistor device of the second resistor group 31b, and the other terminal of each resistor device of the third resistor group 31c are short-circuited.

[0032] The load amount is adjusted by changing the number of resistor devices supplied with power from the power generation device 17. Furthermore, the load is adjusted by switching the connection between the resistor device and other resistor devices between series and parallel.

[0033] Due to this change in load, the load factor of the power generation system 1 fluctuates. The load factor in the first embodiment refers to the value obtained by dividing the power of the resistor 31 by the power of the generator 17 (or a power reference value) and multiplying the result by 100 (power of the resistor 31 ÷ power of the generator 17 × 100). The electric power of the resistor portion 31 is detected by a 21st detection device 61 described later. The electric power of the power generation device 17 is detected by an eleventh detection device 51 described later.

[0034] (Cooling Unit 33) The cooling unit 33 includes a first cooling device 33a, a second cooling device 33b, and a third cooling device 33c. The first cooling device 33a supplies cooling air to the first resistor group 31a. The second cooling device 33b supplies cooling air to the second resistor group 31b. The third cooling device 33c supplies cooling air to the third resistor group 31c.

[0035] In the first embodiment, three cooling devices (first cooling device 33a, second cooling device 33b, and third cooling device 33c) are used to cool three resistor groups (first resistor group 31a, second resistor group 31b, and third resistor group 31c). However, the cooling unit 33 may include a single cooling device, and this single cooling device may cool the three resistor groups.

[0036] In the first embodiment, the cooling unit 33 is driven by the electric power supplied from the power generation device 17 . However, the cooling unit 33 may also be driven by power supplied by other power sources such as commercial power.

[0037] (Blocking portion 35) The blocking portion 35 is a vacuum blocker or the like, and controls the supply of electric power from the power generating device 17 to the resistor portion 31 . The blocking portion 35 is turned on and off in response to the operation of the mode switch of the operating portion 39 . When the mode switch of the operating unit 39 is in the operating position of the first open mode or the second open mode described later, the blocking unit 35 is set to the open state. At this time, the power from the power generating device 17 can be supplied to the resistor unit 31. When the mode switch of the operating unit 39 is in the closed position, the blocking unit 35 is set to the closed state. At this time, the power supply from the power generating device 17 toward the resistor unit 31 is blocked by the blocking unit 35. However, in the first embodiment, based on the information (first detection information) obtained by the first information acquisition unit 50 and the information (second detection information) obtained by the second information acquisition unit 60, the second totaling unit 66 of the second information acquisition unit 60 also controls the opening and closing of the blocking unit 35.

[0038] (Relay Unit 37) The relay unit 37 includes a relay. The relay section 37 is provided for each resistor device of the first resistor group 31a, the second resistor group 31b, and the third resistor group 31c, and performs on / off control of the power supply from the power generation device 17 to each resistor device via the blocking section 35. The on / off control of the relay of the relay unit 37 is performed in response to the operation of the operating switch of the operating unit 39 . However, in the first embodiment, in the second open mode described later, based on the information obtained in the first information acquisition unit 50 and the information obtained in the second information acquisition unit 60, the second totaling unit 66 of the second information acquisition unit 60 also controls the opening and closing of the relay of the relay unit 37.

[0039] (Operation unit 39) The operating unit 39 includes a mode switch, a fan switch, and an operating switch (not shown).

[0040] (Mode switch of operation unit 39) The mode switch is an operation switch of a rotary type, a slide type, a toggle type, a push button type, or the like. The mode switch is used to select whether the load test unit 30 is on or off. Furthermore, the mode switch is used to select (switch modes) the type (high voltage or low voltage) of the power source (power generation device 17) under test, the connection form (series or parallel) of the resistance device, and the like. Furthermore, the mode switch does not include an element for selecting the connection form of the resistor device, and the connection form of the resistor device can be automatically determined by selecting the type of the test object power source (generator 17).

[0041] When the power generation unit 10 is subjected to a load test, the mode switch is set to the operation position of the load test (first on mode). When the load factor of the power generation system 1 is adjusted, the mode switch is set to the operation position for the load factor adjustment (second on mode). When the load test unit 30 is closed, the mode switch is adjusted to the closed operating position.

[0042] (Fan switch of operating unit 39) The fan switch is an operating switch of a sliding type, a toggle type, a push button type, etc. The fan switch is a switch for controlling the cooling unit 33 to be turned on and off when the mode switch is in the operating position of the first on mode or the second on mode. Furthermore, the fan switch may be omitted, and the cooling unit 33 may be operated when the mode switch is in the operating position of the first on mode or the second on mode.

[0043] (Operation switch of operation portion 39) The operating switch may be a slide type, a toggle type, a push button type, or the like. The operation switch is used to adjust the load amount, that is, to control the opening and closing of each relay of the relay unit 37 (the switching device of the resistance device of the first resistor group 31a, the switching device of the resistance device of the second resistor group 31b, and the switching device of the resistance device of the third resistor group 31c).

[0044] (First Information Acquisition Unit 50) The first information acquisition unit 50 is provided in the power generation unit 10 . The first information acquisition unit 50 detects information of each unit of the power generation unit 10 and transmits the information to the second information acquisition unit 60 . The first information acquisition unit 50 includes: a power generation side detection device (the 11th detection device (electrical information detection device) 51; the 12th detection device (temperature information detection device) 52; the 13th detection device (environmental information detection device) 53; the 14th detection device (image information detection device) 54); a first aggregation unit 56; and a first communication unit 57.

[0045] (11th detection device 51) The eleventh detection device 51 obtains information related to electrical properties (information related to electrical characteristics) of the power generation device 17 . Specifically, the 11th detection device 51 detects the current, voltage, power, and frequency of the power generator 17. In other words, the 11th detection device 51 detects the current, voltage, power, and frequency of the electricity flowing on the power generator side of the power line C for supplying power from the power generator 17 to the resistor unit 31. The eleventh detection device 51 is provided inside the power generation section 10 or in the vicinity of the power generation section 10 (in a region outside the power generation section 10 closer to the load test section 30 ).

[0046] The eleventh detection device 51 acquires information related to electrical characteristics while being electrically connected to the power line C. Alternatively, the 11th detection device 51 includes at least one of a current transformer and a Hall element and a magnetic core, and the magnetic core can obtain information related to electrical characteristics in a state of surrounding a portion of the power line C (in a clamped state).

[0047] (12th detection device 52) The twelfth detection device 52 obtains temperature information of each part of the power generation unit 10 . Specifically, the 12th detection device 52 is configured in various parts of the power generation unit 10, for example, near each of the engine 11, the radiator 15, the fan 13, and the power generation unit 17, and detects the temperature of each of the engine 11, the radiator 15, the fan 13, and the power generation unit 17.

[0048] The 12th detection device 52 to the 14th detection device 54 can be constructed as an integral whole or as separate units. Furthermore, at least one of the twelfth detection device 52 to the fourteenth detection device 54 may be integrally formed with at least one of the first totaling unit 56 and the first communication unit 57 .

[0049] (13th detection device 53) The 13th detection device 53 obtains peripheral information of each part of the power generation unit 10 . Specifically, the 13th detection device 53 is disposed in various parts of the power generation unit 10, for example, near each of the engine 11, radiator 15, fan 13, and power generation unit 17, and detects specific information surrounding each of the engine 11, radiator 15, fan 13, and power generation unit 17. This specific information includes at least one of sound, humidity, air pressure, carbon dioxide content in the air, oxygen content in the air, and the presence of specific substances (e.g., burnt materials) in the air.

[0050] (14th detection device 54) The fourteenth detection device 54 obtains image information of each part of the power generation unit 10 . Specifically, the 14th detection device 54 is arranged in various parts of the power generation unit 10, for example, in the vicinity of each of the engine 11, the radiator 15, the fan 13, and the power generation unit 17, and obtains image information of an area including at least a portion of each of the engine 11, the radiator 15, the fan 13, and the power generation unit 17.

[0051] (First totaling section 56) The first totaling unit 56 controls each unit of the first information acquiring unit 50 . The first totaling unit 56 transmits the information obtained by the eleventh to fourteenth detection devices 51 to 54 to the first communication unit 57 . The first totaling unit 56 , the 11th to 14th detection devices 51 to 54 , the 11th communication device 57 a , and the 12th communication device 57 b are connected by cables based on an RS485 serial interface or the like.

[0052] (1st Communications Department 57) The first communication unit 57 includes: an 11th communication device 57a; and a 12th communication device 57b.

[0053] (11th Communications Department 57a) The 11th communication device 57a transmits the information obtained by the 11th detection device 51, the 12th detection device 52, the 13th detection device 53, and the 14th detection device 54 to the 21st communication device 67a by wireless communication. The wireless communication mechanism for wireless communication between the 11th communication device 57a and the 21st communication device 67a may be a mechanism (IEEE802.15.1 (Bluetooth (registered trademark)), IEEE802.11 (wireless LAN), etc.) that publishes its own identification information to the outside while the wireless communication mechanism is set to the on state.

[0054] (12th communication unit 57b) The twelfth communication device 57b is connected to the power line C. On the power line C, the 12th communication device 57b is connected to the power line C in such a manner that the 11th detection device 51 is located between the connection point (first connection point P1) between the 12th communication device 57b and the power line C and the power generation device 17. The 12th communication device 57b transmits the information obtained from the 11th detection device 51, the 12th detection device 52, the 13th detection device 53, and the 14th detection device 54 to the 21st communication device 67a via power line communication. Specifically, the 12th communication device 57b superimposes the radio frequency carrier signal containing the information obtained by the 11th detection device 51, the 12th detection device 52, the 13th detection device 53, and the 14th detection device 54 on the power line C.

[0055] This information is superimposed on any one of the R-phase line connected to the R-phase terminal of the generator 17, the S-phase line connected to the S-phase terminal of the generator 17, and the T-phase line connected to the T-phase terminal of the generator 17 among the power lines C. The first embodiment shows an example in which the twelfth communication device 57b is connected to the T-phase line and the information is superimposed on the T-phase line.

[0056] (Interval between detection and transmission) The information acquisition of the power generation side detection devices (the 11th detection device 51 to the 14th detection device 54) is performed every first time t1 (for example, t1 = 1 second). The first communication unit 57 transmits information at every first time t1. However, the information transmission of the first communication unit 57 can also be performed at every second time t2 (t1×2≦t2). In this case, multiple portions of information are collected and transmitted.

[0057] (Second Information Acquisition Unit 60) The second information acquisition unit 60 is provided in the load testing unit 30 . The second information acquisition unit 60 includes: a load test side detection device (the 21st detection device (electrical information detection device) 61; the 22nd detection device (temperature information detection device) 62; the 23rd detection device (environmental information detection device) 63; the 24th detection device (image information detection device) 64); a second aggregating unit 66; and a second communication unit 67 (the 21st communication device 67a, the 22nd communication device 67b).

[0058] (21st detection device 61) The 21st detection device 61 obtains information related to the electrical properties of the resistor portion 31 (information related to electrical characteristics). Specifically, the 21st detection device 61 detects the current, voltage, power, and frequency of the resistor section 31. In other words, the 21st detection device 61 detects the current, voltage, power, and frequency of the electricity flowing on the resistor section side of the power line C from the power generator 17 to the resistor section 31. The 21st detection device 61 is provided inside the load test section 30 or in the vicinity of the load test section 30 (outside the load test section 30 , in a region closer to the power generation section 10 ). The 21st detection device 61 is arranged on the power line C so that the blocking portion 35 is located between the resistor portion 31 and the 21st detection device 61 .

[0059] The 21st detection device 61 is electrically connected to the power line C to obtain information related to electrical characteristics. Alternatively, the 21st detection device 61 includes at least one of an inverter and a Hall element, and a magnetic core, which can obtain information related to electrical characteristics when the magnetic core is in a state of surrounding a portion of the power line C (in a sandwiched state).

[0060] (22nd detection device 62) The 22nd detection device 62 obtains temperature information of each part of the load test unit 30 . Specifically, the 22nd detection device 62 is configured in various parts of the load test section 30, for example, in the vicinity of each of the first resistor group 31a, the second resistor group 31b, the third resistor group 31c, the first cooling device 33a, the second cooling device 33b, and the third cooling device 33c, to detect the temperature of each of the first resistor group 31a, the second resistor group 31b, the third resistor group 31c, the first cooling device 33a, the second cooling device 33b, and the third cooling device 33c.

[0061] The 22nd detection device 62 to the 24th detection device 64 can be constructed as an integral whole or as different units. Furthermore, at least one of the 22nd to 24th detection devices 62 to 64 may be integrally formed with at least one of the second totaling unit 66 and the second communication unit 67 .

[0062] (No. 23 detection device 63) The 23rd detection device 63 obtains peripheral information of each part of the load test unit 30 . Specifically, the 23rd detection device 63 is disposed in various parts of the load test section 30, for example, near each of the first resistor group 31a, the second resistor group 31b, the third resistor group 31c, the first cooling device 33a, the second cooling device 33b, and the third cooling device 33c. It detects specific information about the surroundings of each of the first resistor group 31a, the second resistor group 31b, the third resistor group 31c, the first cooling device 33a, the second cooling device 33b, and the third cooling device 33c. This specific information includes at least one of sound, humidity, air pressure, carbon dioxide content in the air, oxygen content in the air, and the presence of specific substances (e.g., burnt substances) in the air.

[0063] (No. 24 Detection Device 64) The 24th detection device 64 obtains image information of each part of the load testing unit 30. Specifically, the 24th detection device 64 is configured in various parts of the load test section 30, for example, in the vicinity of each of the first resistor group 31a, the second resistor group 31b, the third resistor group 31c, the first cooling device 33a, the second cooling device 33b, and the third cooling device 33c, to obtain image information of an area including at least a portion of each of the first resistor group 31a, the second resistor group 31b, the third resistor group 31c, the first cooling device 33a, the second cooling device 33b, and the third cooling device 33c.

[0064] (Second totaling section 66) The second totaling unit 66 controls each unit of the second information acquiring unit 60 . In particular, the second totaling unit 66 adjusts the load amount of the load testing unit 30 (adjusts the load factor of the power generation system 1), generates total information, and controls the blocking unit 35 (shutdown control) based on the information obtained from the 11th detection device 51 to the 14th detection device 54 and the information obtained from the 21st detection device 61 to the 24th detection device 64. The second totaling unit 66 is connected to the blocking unit 35, the relay unit 37, the 21st to 24th detection devices 61 to 64, the 21st communication device 67a, and the 22nd communication device 67b by cable connection based on the RS485 serial interface.

[0065] (Creation of the first database) Specifically, the second aggregating unit 66 generates a first database including information obtained by the 11th detection device 51, the 12th detection device 52, the 13th detection device 53, and the 14th detection device 54, and the date and time of acquisition of the information, based on information transmitted from the 11th communication device 57a and received at the 21st communication device 67a, and information transmitted from the 12th communication device 57b and received at the 22nd communication device 67b.

[0066] However, if there is an overlap between the acquisition date and time and the category of information transmitted from the 11th communication device 57a and received by the 21st communication device 67a, and information transmitted from the 12th communication device 57b and received by the 22nd communication device 67b, only one of the categories will be included in the first database. The categories here include detection items such as current, voltage, frequency, power, temperature, and humidity.

[0067] (Creation of the second database) Furthermore, the second totaling unit 66 generates a second database including information obtained by the 21st detection device 61, the 22nd detection device 62, the 23rd detection device 63, and the 24th detection device 64, and the date and time when the information was obtained.

[0068] (Compare) The second aggregation unit 66 compares the information included in the first database and the second database, and the information of the same category, with the information included in the time zone having the same information acquisition date and time. For example, the second totaling unit 66 compares the power of the power generation device 17 obtained by the 11th detection device 51 and the power of the load test unit 30 obtained by the 21st detection device 61 with information included in a time zone with the same information acquisition date and time. Furthermore, the second totaling unit 66 compares the information included in the first database or the second database with a reference value of information of the same category. For example, the second totaling unit 66 compares the electric power of the power generating device 17 obtained by the 11th detection device 51 with the electric power reference value.

[0069] (Control 1 based on comparison results) When the load test is performed on the power generation unit 10, the second totaling unit 66 generates total information based on the comparison result, outputs the total information, and blocks the power supply from the power generation device 17 to the resistor unit 31 based on the total information (shutdown control). Details of the total information are as follows.

[0070] For example, if the total information contains abnormal electrical characteristics corresponding to date and time information close to the current time, or abnormal temperature, humidity, or other related information, the second totaling unit 66 turns off the blocking unit 35. This blocks the power supply from the power generator 17 to the resistor 31. However, after the power supply to the resistor 31 is blocked, power is still supplied to the cooling unit 33 until a certain period of time has passed. Furthermore, for example, when abnormal information of electrical characteristics corresponding to date and time information close to the current time point, and / or abnormal information such as temperature and humidity are included in the total information, the total information is output as the total information, so that the 21st communication device 67a transmits the total information to the external device. Furthermore, when the aggregate information includes only one piece of abnormal information, such as electrical characteristics, shutdown control can be performed. Furthermore, when the period from the current time point to a time point that is only a third time t3 (for example, t3 = 1 minute) in the past includes only a specified number of pieces of abnormal information, shutdown control can be performed.

[0071] (Control 2 based on comparison results) When adjusting the load factor of the power generation system 1, the second totaling unit 66 adjusts the load of the load test unit 30, generates total information, outputs the total information, and blocks the power supplied from the power generation device 17 to the load test unit 30 based on the total information (shutdown control). For example, when the electrical equipment in the load section 90 is largely unused, the power generation section 10 is operated under a light load, the power consumption of the power generation device 17 increases, and the load factor decreases. When the electrical equipment in the load section 90 is largely unused, the power generation section 10 is operated under a heavy load, the power consumption of the power generation device 17 decreases, and the load factor increases. When the load factor of the power generation system 1 is lower than the load factor reference value, the second totaling unit 66 controls the relay unit 37 so as to increase the number of resistor devices in the resistor unit 31 to which power is supplied. When the load factor of the power generation system 1 is higher than the load factor reference value, the second totaling unit 66 controls the relay unit 37 so as to reduce the number of resistor devices in the resistor unit 31 to which power is supplied.

[0072] The load amount of the load test unit 30 is adjusted under the following conditions: the current of the power generation device 17 is approximately the same as the current of the resistor unit 31; the voltage of the power generation device 17 is approximately the same as the voltage of the resistor unit 31; and the frequency of the power generation device 17 is approximately the same as the frequency of the resistor unit 31. That is, when the difference between the current of the power generation device 17 and the current of the resistor part 31 is smaller than the current difference threshold, the difference between the voltage of the power generation device 17 and the voltage of the resistor part 31 is smaller than the voltage difference threshold, and the difference between the frequency of the power generation device 17 and the frequency of the resistor part 31 is smaller than the frequency difference threshold, the resistor device that supplies power from the power generation device 17 is controlled from among the multiple resistor devices based on at least the information related to the power of the power generation device 17 obtained by the power generation side detection device and the information related to the power of the resistor part 31 obtained by the load test side detection device.

[0073] (Total Information) The summary information generated by the second summary unit 66 includes information on the load factor of the power generation system 1, abnormality information on electrical characteristics, abnormality information such as temperature and humidity, and image information of abnormal locations.

[0074] (Information related to the load factor of power generation system 1) Information related to the load factor of the power generation system 1 is calculated based on a comparison between the power of the power generation device 17 obtained by the 11th detection device 51 and the power of the load test unit 30 obtained by the 21st detection device 61 . For example, when the power of the power generation device 17 obtained by the 11th detection device 51 is 1000W and the power of the load test unit 30 obtained by the 21st detection device 61 is 200W, the load factor of the power generation system 1 becomes 20%.

[0075] (Abnormal information of electrical characteristics) The abnormal information of the electrical characteristics is calculated based on the comparison between the current, voltage, and frequency of the power generation device 17 obtained by the 11th detection device 51 and the current, voltage, and frequency of the resistor portion 31 obtained by the 21st detection device 61 . For example, when the difference between the current of the power generation device 17 and the current of the resistor 31 exceeds the current difference threshold, abnormal information of the electrical characteristics is included in the total information. In this case, the image information obtained by the 14th detection device 54 and the image information obtained by the 24th detection device 64 are included in the total information. Of the image information obtained by the 14th detection device 54 and the image information obtained by the 24th detection device 64, only the image information of the locations used to calculate the current difference can be included in the total information.

[0076] The abnormal information of the electrical characteristics can be calculated based on the comparison between the current / voltage / frequency of the power generation device 17 obtained by the 11th detection device 51 and the preset current reference value / voltage reference value / frequency reference value. The abnormal information of the electrical characteristics can be calculated based on the comparison between the current / voltage / frequency of the resistor portion 31 obtained by the 21st detection device 61 and the preset current reference value / voltage reference value / frequency reference value. For example, when the difference between the current of the power generation device 17 and the current reference value exceeds the current difference threshold, abnormal information of the electrical characteristics is included in the total information. At this time, the image information obtained by the 14th detection device 54 is included in the total information. Among the image information obtained by the 14th detection device 54, only the image information of the location used for calculating the current difference can be included in the total information.

[0077] (Abnormal temperature information) The temperature abnormality information is calculated based on the comparison between the temperature of each part of the power generation unit 10 obtained by the 12th detection device 52 and the temperature of each part of the load test unit 30 obtained by the 22nd detection device 62 . For example, when the difference between the temperature near the power generation device 17 of the power generation unit 10 obtained by the 12th detection device 52 and the temperature near the first resistor group 31a of the load test unit 30 obtained by the 22nd detection device 62 reaches or exceeds the temperature difference threshold, the temperature abnormality information is included in the total information. In this case, the image information obtained by the 14th detection device 54 and the image information obtained by the 24th detection device 64 are included in the total information. Of the image information obtained by the 14th detection device 54 and the image information obtained by the 24th detection device 64, only the image information of the locations used to calculate the temperature difference may be included in the total information.

[0078] The temperature abnormality information can be calculated based on the comparison between the temperature of each part of the power generation unit 10 obtained by the twelfth detection device 52 and a preset temperature reference value. The temperature abnormality information can be calculated based on the comparison between the temperature of each part of the load test unit 30 obtained by the 22nd detection device 62 and a preset temperature reference value. For example, when the difference between the temperature near the power generation device 17 of the power generation section 10 obtained by the twelfth detection device 52 and the temperature reference value exceeds the temperature difference threshold, the temperature abnormality information is included in the total information. At this time, the image information obtained by the 14th detection device 54 is included in the total information. Among the image information obtained by the 14th detection device 54, only the image information of the location used for calculating the temperature difference can be included in the total information.

[0079] (Abnormal humidity information) The humidity abnormality information can be calculated based on the comparison between the humidity of each part of the power generation unit 10 obtained by the 13th detection device 53 and the humidity of each part of the load test unit 30 obtained by the 23rd detection device 63. For example, when the difference between the humidity near the power generation device 17 of the power generation unit 10 obtained by the 13th detection device 53 and the humidity near the first resistor group 31a of the load test unit 30 obtained by the 23rd detection device 63 reaches or exceeds the humidity difference threshold, the abnormal humidity information is included in the total information. In this case, the image information obtained by the 14th detection device 54 and the image information obtained by the 24th detection device 64 are included in the total information. Of the image information obtained by the 14th detection device 54 and the image information obtained by the 24th detection device 64, only the image information of the locations used to calculate the humidity difference may be included in the total information.

[0080] The humidity abnormality information can be calculated based on the comparison between the humidity of each part of the power generation unit 10 obtained by the 13th detection device 53 and the preset humidity reference value. The humidity abnormality information can be calculated based on the comparison between the humidity of each part of the load test part 30 obtained by the 23rd detection device 63 and the preset humidity reference value. For example, when the difference between the humidity near the power generation device 17 of the power generation section 10 obtained by the 13th detection device 53 and the humidity reference value exceeds the humidity difference threshold, the humidity abnormality information is included in the total information. At this time, the image information obtained by the 14th detection device 54 is included in the total information. Among the image information obtained by the 14th detection device 54, only the image information of the location used to calculate the humidity difference can be included in the total information.

[0081] (Second Communications Department 67) The second communication unit 67 includes: a 21st communication device 67a; and a 22nd communication device 67b. The 21st communication device 67a receives information obtained from the 11th detection device 51, the 12th detection device 52, the 13th detection device 53, and the 14th detection device 54 by the 11th communication device 57a through wireless communication.

[0082] The 21st communication device 67a transmits the information obtained at the 21st detection device 61, the 22nd detection device 62, the 23rd detection device 63, and the 24th detection device 64, and the information obtained from the 11th communication device 57a at the 11th detection device 51, the 12th detection device 52, the 13th detection device 53, and the 14th detection device 54, and / or the total information generated based on such information to an external device (not shown).

[0083] The 22nd communication device 67b is connected to the power line C. On the power line C, the 22nd communication device 67b is connected to the power line C in such a manner that the 21st detection device 61 is located between the connection point (second connection point P2) between the 22nd communication device 67b and the power line C and the blocking unit 35. The 22nd communication device 67b receives information obtained from the 11th detection device 51, the 12th detection device 52, the 13th detection device 53, and the 14th detection device 54 by the 12th communication device 57b through power line communication. Specifically, the 22nd communication device 67b extracts the high-frequency transmission wave signal including the information obtained by the 12th communication device 57b from the 11th detection device 51, the 12th detection device 52, the 13th detection device 53, and the 14th detection device 54 from the power line C.

[0084] Among the power lines C, the 22nd communication device 67b is connected to the power line connected to the 12th communication device 57b. The first embodiment shows an example in which the 12th communication device 57b is connected to the T-phase line, and the 22nd communication device 67b is connected to the T-phase line.

[0085] (Interval between detection and transmission) The load test side detection devices (the 21st detection device 61 to the 24th detection device 64) acquire information at every first time t1. The second totaling unit 66 adjusts the load amount, generates total information, and performs shutdown control at each first time t1. However, the load amount of the second totaling unit 66 may be adjusted at every second time t2. The second communication unit 67 transmits information at every first time t1. However, the information transmission of the second communication unit 67 is performed at every second time t2.

[0086] (Loading section 90) The load unit 90 includes electrical equipment (loads) such as an air conditioner and lighting fixtures that are operated by the power from the power generation unit 10 . When the load test is performed, the power supplied from the power generation device 17 to the load unit 90 is blocked. That is, when the load test is performed on the power generation unit 10 , power is not supplied from the power generation device 17 to the load unit 90 , and power can be supplied from the power generation device 17 to the load test unit 30 . The operation to interrupt the power supply from the power generation device 17 to the load unit 90 is performed by disconnecting the cable and closing a switch (distribution panel, etc., not shown) provided between the power generation device 17 and the load unit 90. When the load factor of the power generation system 1 is adjusted, a state is set in which electric power can be supplied from the power generation device 17 to both the load test unit 30 and the load unit 90 .

[0087] (Effects such as shutting down the load test unit due to abnormality in the power generation device) Based on the information about the abnormality of the power generation unit 10 (at least the information obtained by the detection device on the power generation side), the load test unit 30 is shut down. In this way, the load of the abnormal power generation unit 10 can be reduced and the abnormality can be prevented from worsening. Based on the information about the abnormality of the power generation unit 10, the total information is outputted, thereby enabling the user to discover the abnormality at an early stage.

[0088] (Effect of Power Line Communication) Since information is transmitted using the power line connected between the power generation device 17 and the resistor portion 31, wiring can be simplified.

[0089] (Effects of both wireless communication and power line communication) Because high-voltage current flows between the power generation unit 10 and the load test unit 30, data transmission may be temporarily disabled. By transmitting data through both power line communication and wireless communication, even if one of the two methods is temporarily disabled, data transmission can continue using the other method.

[0090] (Effect of adjusting load factor) The load test unit 30 can also be used for purposes other than load testing. The load factor of the power generation system 1 is easily maintained at a state close to a specific value (load factor reference value), and the power generation unit 10 can be operated efficiently.

[0091] (Effect of shut-off control by current / voltage / frequency difference) If an abnormality occurs, the difference in at least one of the current, voltage, and frequency will increase. Therefore, based on these detection results, the load test unit 30 is shut down to allow the user to discover the abnormality.

[0092] (Effect of adjusting load factor to determine if there is an abnormality) In the absence of abnormal conditions, the load testing unit 30 can be used to adjust the load amount.

[0093] (Effect of judging abnormality based on temperature information, etc., including image information) From the temperature information at a predetermined position of the power generation unit 10 (the power generation device 17, etc.), it can be determined whether an abnormality has occurred. Furthermore, it is possible to determine whether any of the power generation unit 10 and the load test unit 30 is malfunctioning based on the temperature information at a predetermined position of the power generation unit 10 and the temperature information at a predetermined position of the load test unit 30 (such as the first resistor group 31a). Furthermore, since the aggregate information includes image information, it is possible to visually identify whether an abnormality has occurred using the image information.

[0094] (Application example of the main body of generating aggregate information) In the first embodiment, an example is described in which the operations of generating the first database, generating the second database, and generating the aggregate information are performed by the second aggregate unit 66 of the second information acquisition unit 60 provided in the load test unit 30. However, the first aggregation unit 56 of the first information acquisition unit 50 provided in the power generation unit 10 can generate the first database, the second database, and the aggregation information. At this time, the information obtained by the load test side detection device (the 21st detection device 61, etc.) is transmitted from the second communication unit 67 to the first communication unit 57. The first totaling unit 56 generates a first database, a second database, and total information based on information obtained from the 11th to 14th detection devices 51 to 54 and information obtained from the 21st to 24th detection devices 61 to 64. Furthermore, the total information is transmitted from the first communication unit 57 to the second communication unit 67, and / or an instruction signal such as a shutdown control based on the total information is transmitted. The second information acquisition unit 60 adjusts the load of the load test unit 30 (adjusts the load factor of the power generation system 1 ) and controls the interruption unit 35 (shutdown control) based on the total information or instruction signal from the first communication unit 57 .

[0095] Furthermore, other external devices can generate the first database, the second database, and the aggregate information. At this time, the information obtained by the power generation side detection device (the 11th detection device 51, etc.) is transmitted from the first communication unit 57 to the external device, and the information obtained by the load test side detection device (the 21st detection device 61, etc.) is transmitted from the second communication unit 67 to the external device. The external device generates a first database, a second database, and total information based on information obtained from the 11th detection device 51 to the 14th detection device 54 and information obtained from the 21st detection device 61 to the 24th detection device 64. Furthermore, the external device transmits the total information to the second communication unit 67, and / or transmits an instruction signal for controlling shutdown etc. based on the total information. The second information acquisition unit 60 adjusts the load amount of the load test unit 30 (adjusts the load factor of the power generation system 1 ), controls the interruption unit 35 (shutdown control), etc. based on the total information or instruction signal transmitted from the external device.

[0096] (Application example of outputting aggregate information) In the first embodiment, an example is described in which the second information acquisition unit 60 transmits the total information to the external device based on the comparison result, that is, based on the information obtained at least by the power generation side detection device (such as the 11th detection device 51). However, the output of the aggregate information is not limited to the transmission of information to an external device, and the aggregate information may be output as an image or as an audio on a display device or an audio output device. For example, when it is determined that a malfunction has occurred in the power generation device 17 or the load test unit 30 based on the difference between the current of the power generation device 17 and the current of the resistor unit 31, information including the fact that the current value is abnormal and that a malfunction has occurred in at least one of the power generation device 17 or the load test unit 30 is output as aggregate information by the second information acquisition unit 60.

[0097] (Application example of the definition of load factor) The load factor in the first embodiment may be a value obtained by dividing the sum of the power of the resistor section 31 and the power of the load section 90 by the power of the power generation device 17 (or a power reference value) and then multiplying the result by 100 ((power of the resistor section 31 + power of the load section 90) ÷ power of the power generation device 17 × 100, second embodiment). At this time, the 21st detection device 61 detects the power of the resistor section 31 and the power of the load section 90. In other words, the 21st detection device 61 detects the current, voltage, power, and frequency of the power flowing on the resistor section side of the power line C from the power generator 17 to the resistor section 31, and the current, voltage, power, and frequency of the power flowing on the load section side of the power line C from the power generator 17 to the resistor section 31 (see FIG. 2 ). In this case, the load factor can be calculated using all loads to which electric power is supplied from the power generation device 17 .

[0098] While several embodiments of the present invention have been described above, these embodiments are merely illustrative and are not intended to limit the scope of the invention. These embodiments may be implemented in various other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. These embodiments and their variations are intended to be included within the scope and spirit of the invention, as well as within the scope of the inventions set forth in the claims and their equivalents.

[0099] 1: Power generation system 10: Power Generation Department 11: Engine 13: Fan 15: Radiator 17: Power generation device 30: Load Testing Department 31: Resistor 31a: 1st resistor group 31b: Second resistor group 31c: The third resistor group 33: Cooling unit 33a: 1st cooling device 33b: Second cooling device 33c: 3rd cooling device 35: Blocking Department 37: Relay Department 39: Operation Department 50: First information acquisition unit 51: 11th detection device (electrical information detection device) 52: 12th detection device (temperature information detection device) 53: 13th Detection Device (Environmental Information Detection Device) 54: 14th Detection Device (Image Information Detection Device) 56:1st Total 57: 1st Communications Department 57a: 11th communication device 57b: 12th communication device 60: Second information acquisition unit 61: No. 21 Detection Device (Electrical Information Detection Device) 62: No. 22 detection device (temperature information detection device) 63: No. 23 Detection Device (Environmental Information Detection Device) 64: No. 24 Detection Device (Image Information Detection Device) 66: Section 2 67: 2nd Communications Department 67a: 21st communication device 67b: 22nd communication device 90: Load part C: Power lines P1: First connection point P2: 2nd connection point t1: time 1 t2: second time t3: the third time

Claims

1. A power generation system comprising: a power generation unit including a power generation device; a load testing unit having a resistance unit and a blocking unit, and being a separate entity from the power generation unit; a first information acquisition unit including a power generation side detection device and a first communication unit, wherein the power generation side detection device is disposed in the power generation unit and detects specific information of the power generation unit, and the first communication unit transmits at least one of information obtained from the power generation side detection device and aggregate information generated based on the information obtained from the power generation side detection device; and a second information acquisition unit including a second communication unit disposed in the load testing unit and receiving at least one of the information obtained from the power generation side detection device and the aggregate information, wherein the blocking unit controls the power supply from the power generation device to the resistance unit, and the second information acquisition unit performs at least one of controlling the blocking unit based on the information obtained from the power generation side detection device and outputting the aggregate information, and the first communication unit transmits the information to the second communication unit via power line communication using the power line used when supplying power from the power generation device to the resistance unit.

2. The power generation system of claim 1, wherein the aforementioned first communication unit transmits the aforementioned information to the aforementioned second communication unit via wireless communication and the aforementioned power line communication.

3. A power generation system comprising: a power generation unit including a power generation device; a load testing unit having a resistance unit and a blocking unit, and being a separate entity from the power generation unit; a first information acquisition unit including a power generation-side detection device and a first communication unit, the power generation-side detection device being disposed in the power generation unit and detecting specific information of the power generation unit, the first communication unit transmitting at least one of information obtained from the power generation-side detection device and aggregated information generated based on the information obtained from the power generation-side detection device; and a second information acquisition unit including a second communication unit disposed in the load testing unit and receiving at least one of the information obtained from the power generation-side detection device and the aggregated information, wherein the blocking unit controls the power supply from the power generation device to the resistance unit, the second information acquisition unit performs at least one of controlling the blocking unit based on the information obtained from the power generation-side detection device and outputting the aggregated information, the resistance unit having a plurality of resistance devices, the power generation-side detection device detecting the power of the power generation device, and the second information acquisition unit having a load testing-side detection device detecting the power of the resistance unit. The aforementioned power generation device is electrically connected to the aforementioned load testing unit and a load unit different from the aforementioned load testing unit. When power can be supplied from the aforementioned power generation device to both the aforementioned load testing unit and the aforementioned load unit, the aforementioned second information acquisition unit controls the resistor device that supplies power from the aforementioned power generation device among the aforementioned plurality of resistor devices, based at least on the power-related information of the aforementioned power generation device obtained from the aforementioned power generation side detection device and the power-related information of the aforementioned resistor unit obtained from the aforementioned load testing side detection device.

4. A power generation system as described in any of claims 1 to 3, wherein the aforementioned power generation side detection device detects the current, voltage, and frequency of the aforementioned power generation device, and the aforementioned load test side detection device detects the current, voltage, and frequency of the aforementioned resistor, and in a state where power is not supplied from the aforementioned power generation device to the aforementioned load, but power can be supplied from the aforementioned power generation device to the aforementioned load test, the aforementioned second information acquisition unit controls the aforementioned blocking unit based on the information related to the current, voltage, and frequency of the aforementioned power generation device obtained from the aforementioned power generation side detection device, and the information related to the current, voltage, and frequency of the aforementioned resistor obtained from the aforementioned load test side detection device.

5. A power generation system as claimed in any one of claims 1 to 3, wherein the difference between the current of the aforementioned power generation device and the current of the aforementioned resistor is smaller than a current difference threshold, the difference between the voltage of the aforementioned power generation device and the voltage of the aforementioned resistor is smaller than a voltage difference threshold, and the difference between the frequency of the aforementioned power generation device and the frequency of the aforementioned resistor is smaller than a frequency difference threshold, wherein the aforementioned second information acquisition unit controls the resistor device that supplies power from the aforementioned power generation device among the aforementioned plurality of resistor devices.

6. A power generation system comprising: a power generation unit including a power generation device; a load testing unit having a resistance unit and a blocking unit, and being separately configured from the power generation unit; a first information acquisition unit including a power generation side detection device and a first communication unit, the power generation side detection device being disposed in the power generation unit and detecting specific information of the power generation unit, the first communication unit transmitting at least one of information obtained from the power generation side detection device and aggregate information generated based on the information obtained from the power generation side detection device; and a second information acquisition unit including a second communication unit disposed in the load testing unit and receiving at least one of the information obtained from the power generation side detection device and the aggregate information, wherein the blocking unit controls the power supply from the power generation device to the resistance unit, the second information acquisition unit at least performs at least one of controlling the blocking unit based on the information obtained from the power generation side detection device and outputting the aggregate information, the power generation side detection device detecting the current, voltage, and frequency of the power generation device, and the second information acquisition unit having a load testing side detection device for detecting the current, voltage, and frequency of the resistance unit. When power can be supplied from the aforementioned power generation device to the aforementioned load test unit, the aforementioned second information acquisition unit controls the aforementioned blocking unit based on the current, voltage, and frequency-related information of the aforementioned power generation device obtained from the aforementioned power generation side detection device, and the current, voltage, and frequency-related information of the aforementioned resistor obtained from the aforementioned load test side detection device.

7. A power generation system comprising: a power generation unit including a power generation device; a load testing unit having a resistance unit and a blocking unit, and being a separate entity from the power generation unit; a first information acquisition unit including a power generation-side detection device and a first communication unit, the power generation-side detection device being disposed in the power generation unit and detecting specific information of the power generation unit, the first communication unit transmitting at least one of information obtained from the power generation-side detection device and aggregate information generated based on the information obtained from the power generation-side detection device; and a second information acquisition unit including a second communication unit disposed in the load testing unit and receiving at least one of the information obtained from the power generation-side detection device and the aggregate information, wherein the blocking unit controls the power supply from the power generation device to the resistance unit, and the second information acquisition unit performs at least one of controlling the blocking unit based on the information obtained from the power generation-side detection device and outputting the aggregate information, wherein the specific information includes at least one of the following: temperature, sound, humidity, air pressure, carbon dioxide content in the air, oxygen content in the air, and presence of a specific substance in the air at a predetermined location of the power generation unit. The aforementioned first information acquisition unit acquires image information of a region containing at least a portion of the aforementioned predetermined location, and the aforementioned image information is included in the output of the aforementioned total information.

Images