JP2016187281A - Hydrogen manufacturing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydrogen manufacturing system capable of manufacturing hydrogen by making effective use of electric power generated by a wind power generator.SOLUTION: A hydrogen manufacturing system 1 includes: a wind power generator 2; a power smoothing apparatus 3 for separating electric power P1 generated by the wind power generator 2 into separated power P2 including a fluctuating output which is a higher frequency component than a predetermined frequency and smoothed power P3. The separated power P2 separated by the power smoothing apparatus 3 is used in a hydrogen manufacturing apparatus 4 for manufacturing hydrogen.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a hydrogen production system.

  A first example of a conventional hydrogen production system will be described with reference to FIG. In the hydrogen production system 50, a wind power generation device 51 using a windmill is installed, and the generated power generated by the wind power generation device 51 is used in the hydrogen production device 52 to produce hydrogen. An example of a method for producing hydrogen in the hydrogen production apparatus 52 is a water electrolysis method. The hydrogen production system 50 provided with the wind power generator 51 is installed on a remote island, for example, and uses the produced hydrogen as fuel for a fuel cell vehicle traveling on the island, or a household fuel cell installed in a home or the like. There are proposals to use it as fuel.

  By the way, in the wind power generator 51, the fluctuation | variation of a high frequency (short cycle) may generate | occur | produce by the influence of a wind. For this reason, when the wind power generator 51 is connected to a weak power distribution system called a small-scale grid installed in a remote island, for example, there is a problem that the stability of the power distribution system is affected. Therefore, it becomes difficult for the wind power generator 51 to satisfy the acceptance standard of power in such a weak power distribution system, and cannot be connected to the power distribution system, and the total amount of generated power generated by the wind power generator 51 is It will be used in the hydrogen production apparatus 52.

  However, since the penetration rate of equipment using hydrogen is low, the demand for hydrogen is small. For this reason, when the generated power of the wind power generator 51 is used in the hydrogen production apparatus 52, the wind power generator 51 is operated so as to intentionally suppress the power generation capacity, or surplus generated power is discarded in some way. As a result, part of the power generation capacity of the wind power generator 51 or the generated power may be wasted.

  On the other hand, it is also considered that the wind power generator 51 is operated without suppressing the power generation capacity, and the generated power not used in the hydrogen production device 52 is charged in a large-scale storage battery and discharged when necessary. It is done. In this case, the electric power discharged from the storage battery can be used without fluctuation, but the efficiency of the storage battery is not ideally high, and a large amount of generated power may still be wasted.

  Next, a second example of a conventional hydrogen production system (see, for example, Patent Document 1) will be described with reference to FIG. This hydrogen production system 60 includes a technique for smoothing fluctuations in the generated power generated by the wind power generator 61 and interconnecting with the power distribution system. That is, as shown in FIG. 8, the generated power generated by the wind power generator 61 does not include the separated power and the fluctuation output that is a high frequency component (or the fluctuation output is reduced) by the power smoothing apparatus 62. Separated into power. The power smoothing device 62 is connected to the power distribution system 63, and the smoothed power separated in the power smoothing device 62 is supplied to the power distribution system 63. With such a configuration, it is possible to prevent or suppress the power supplied to the power distribution system 63 from including a fluctuation output that is a high frequency component. For this reason, it can be linked to a weak power distribution system 63 called a small-scale grid, and the wind power generator 61 can be easily introduced to a remote island.

  By the way, in the hydrogen production system 60 shown in FIG. 8, the separated electric power separated by the electric power smoothing device 62 is sent to an electric heater and used to heat the heat medium used in the solar thermal power generation device. However, the installation of solar power generation equipment requires land conditions that it is a climatic region with many clear skies and land conditions that can secure a vast site, and remote islands that consider the introduction of wind power generation equipment 61 are like this It is generally difficult to think of meeting the land requirements for installing a solar power generator. Moreover, although it is possible to convert the separated electric power into heat energy by an electric heater and use it as it is, there is generally no stable large amount of heat demand near the place where the wind power generator 61 is installed. For this reason, in many cases, warm water is produced by an electric heater, and heat energy is discharged from the warm water to the atmosphere by a cooling tower or the like, so that a lot of energy may be wasted.

International Publication No. 2014/024415

  The present invention has been made in consideration of such points, and an object of the present invention is to provide a hydrogen production system capable of producing hydrogen by effectively using the power generated by a wind turbine generator.

  A hydrogen production system according to an embodiment includes a wind power generator and power smoothing that separates generated power generated by the wind power generator into separated power and smoothed power including a variable output that is a frequency component higher than a predetermined frequency. And a device. The separated power separated by the power smoothing device is used in a hydrogen production device that produces hydrogen.

  According to the present invention, hydrogen can be produced by effectively using the power generated by the wind turbine generator.

FIG. 1 is a diagram showing a schematic configuration of a hydrogen production system according to the first embodiment. FIG. 2 is a diagram illustrating an example of the configuration of the power smoothing apparatus in FIG. 1. FIG. 3A is a diagram illustrating an example of a waveform of the signal S1 created in the power smoothing apparatus of FIG. FIG. 3B is a diagram illustrating an example of a waveform of the signal S2 created in the power smoothing apparatus of FIG. FIG. 3C is a diagram illustrating an example of a waveform of the signal S3 created in the power smoothing apparatus of FIG. FIG. 3D is a diagram illustrating an example of a waveform of a signal S4 created in the power smoothing apparatus of FIG. FIG. 4 is a diagram illustrating a schematic configuration of a hydrogen production system according to the second embodiment. FIG. 5 is a diagram showing a schematic configuration of a hydrogen production system according to the third embodiment. FIG. 6 is a diagram illustrating an example of the configuration of the power smoothing device of the hydrogen production system according to the fourth embodiment. FIG. 7 is a diagram illustrating an example of a schematic configuration of a conventional hydrogen production system. FIG. 8 is a diagram showing another example of a schematic configuration of a conventional hydrogen production system.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
First, the hydrogen production system in the first embodiment will be described with reference to FIGS. 1 to 3.

  As shown in FIG. 1, the hydrogen production system 1 includes a wind power generator 2 using a windmill and a generated power P1 generated by the wind power generator 2 with a frequency component higher than a predetermined frequency (relatively fast output fluctuation component). ), A power smoothing device 3 that separates into a separated power P2 including a variable output and a smoothed power P3, and a hydrogen production device 4. Among these, the power smoothing device 3 is connected to the power distribution system 30 (power system), and the smoothed power P3 separated by the power smoothing device 3 is supplied to the power distribution system 30. On the other hand, the separation power P2 separated by the power smoothing device 3 is supplied to the hydrogen production device 4, and the hydrogen production device 4 produces hydrogen using the supplied separation power P2.

  Here, the power smoothing device 3 will be described more specifically.

  In the present embodiment, the power smoothing device 3 has a high-pass filter function and a bias addition function. That is, as shown in FIG. 2, the power smoothing device 3 includes an instrument current transformer 10 (CT: Current Transformer) that measures the generated power P <b> 1 (AC power) output from the wind power generator 2, and an instrument A power conversion control unit 11 that converts a signal corresponding to the generated power P1 measured by the current transformer 10, and a part of the generated power P1 is converted into separated power P2 based on the signal converted by the power conversion control unit 11. And a power conversion unit 12 to perform.

  The current transformer for instrument 10 measures the generated power P1 output from the wind power generator 2, and outputs a signal S1 as shown in FIG. 3A, for example.

  The power conversion control unit 11 is configured to control the power conversion unit 12. More specifically, the power conversion control unit 11 includes a high-pass filter 13 and an adder 14 as shown in FIG. Among these, the high-pass filter 13 includes a smoothing filter 15 (low pulse filter) and a subtracter 16.

  The smoothing filter 15 removes a high frequency component from the signal S1 output from the instrument current transformer 10, and outputs a signal S2 (low frequency component) as shown in FIG. 3B, for example. The subtractor 16 subtracts the signal S2 output from the smoothing filter 15 from the signal S1 output from the instrument current transformer 10, and outputs a signal S3 (difference signal) as shown in FIG. 3C, for example. In this way, the high-pass filter 13 (more specifically, the subtractor 16) outputs the high-frequency component of the signal S1 output from the instrument current transformer 10 as the signal S3. Here, the high-pass filter 13 extracts a high-frequency component from the generated power P1 of the wind turbine generator 2, and for example, a time constant that separates the high-frequency component to an extent that can be accepted even on a small-scale grid on a remote island. (For example, a time constant smaller than 1 minute) is preferably set.

  The adder 14 adds a bias B preset to a predetermined value to the signal S3 output from the subtracter 16, and outputs a signal S4 as shown in FIG. 3D, for example. As a result, the negative component lower than the reference potential (for example, 0 V) of the signal S3 shifts to the positive component, the signal value of the signal S4 becomes larger than 0, and the power by the inverter power supply circuit 18 described later of the power conversion unit 12 Can be converted. The additional amount of bias B (the value of bias B) may be a constant value, or a value set according to a predetermined rule, for example, one or more past generated power P1 such as one minute before. It may be a value calculated based on

  The power conversion control unit 11 further includes a function unit 17 that converts the signal output from the adder 14. The function unit 17 converts the signal S4 output from the adder 14 as a variable so as to be suitable for the inverter power supply circuit 18 (for example, changes the signal level) and outputs a signal S5 (function). This signal S5 corresponds to the separated power P2.

  The power converter 12 includes an inverter power supply circuit 18, which performs so-called pulse width modulation (PWM) control based on the signal S <b> 5 output from the function unit 17. Thereby, the inverter power supply circuit 18 removes a high frequency component from the generated electric power P1 of the wind power generator 2, and outputs the fluctuation output which is this high frequency component as the separated electric power P2.

  On the other hand, the low frequency component obtained by removing the high frequency component from the generated power P1 of the wind power generator 2 is output from the power smoothing device 3 as the smoothed power P3. That is, the power smoothing device 3 smoothes the generated power P <b> 1, outputs smoothed power P <b> 3 that does not include a fluctuation output that is a high frequency component, and supplies the smoothed power P <b> 3 to the distribution system 30. The smoothed power P3 corresponds to a signal (not shown) obtained by subtracting the above-described bias B from the signal S2 output from the above-described high-pass filter 13. Here, the smoothed power P3 is not limited to the case where the fluctuation output is not included, and may include a slight fluctuation output to the extent that it can be supplied to the power distribution system 30, but in order to simplify the description. In the following, it will be described as “not including variable output”.

  In this way, the power smoothing device 3 separates the generated power P1 of the wind power generator 2 into the separated power P2 including the fluctuation output that is a high frequency component and the smoothing power P3 not including the fluctuation output. Respectively.

  The hydrogen production device 4 is supplied with the separated power P2 output from the inverter power supply circuit 18 of the power smoothing device 3, and the hydrogen production device 4 produces hydrogen using the supplied separated power P2. For example, the hydrogen production apparatus 4 can be configured to generate water by electrolyzing water with the separation power P2, but any method for producing hydrogen can be used as long as the method uses the separation power P2.

  Next, the operation of the present embodiment having such a configuration will be described.

  When the wind power generator 2 shown in FIG. 1 receives wind, it generates power and outputs generated power P1. The generated power P <b> 1 output from the wind power generator 2 is supplied to the power smoothing device 3.

  When the generated power P1 is supplied to the power smoothing device 3, the instrument current transformer 10 shown in FIG. 2 measures the generated power P1 and outputs a signal S1 (see FIG. 3A). The output signal S1 is input to the high-pass filter 13 of the power conversion control unit 11, the high frequency component is removed from the signal S1, and the signal S2 (see FIG. 3B) is output. The output signal S2 is input to the subtractor 16, and the signal S2 is subtracted from the separately input signal S1 to output a signal S3 (see FIG. 3C). The output signal S3 is input to the adder 14, a bias B is added to the input signal S3, and a signal S4 (see FIG. 3D) is output. The output signal S4 is input to the function unit 17, the signal S4 is converted, and the signal S5 corresponding to the inverter power supply circuit 18 is output. Then, the output signal S5 is input to the inverter power supply circuit 18 of the power converter 12, and a fluctuation output that is a high frequency component of the generated power P1 output from the wind turbine generator 2 is output as the separated power P2 by PWM control. Is done.

  On the other hand, the component obtained by removing the high frequency component from the generated power P1 of the wind power generator 2 is output from the power smoothing device 3 as the smoothed power P3.

  In this way, the generated power P1 of the wind turbine generator 2 is separated into the separated power P2 that includes a fluctuation output that is a high frequency component, and the smoothed power P3 that does not contain the fluctuation output.

  The separated power P2 separated by the power smoothing device 3 is supplied to the hydrogen production device 4, and hydrogen is produced by the supplied separated power P2. The separated power P2 supplied to the hydrogen production device 4 varies with time due to the variation in wind received by the wind power generation device 2, and the production of hydrogen can be intermittent. However, the produced hydrogen is once stored in a tank (not shown) or the like, and the stored hydrogen is provided directly or indirectly to the hydrogen user. For this reason, it can prevent that the bad effect by the time fluctuation of separation electric power P2 arises.

  On the other hand, the smoothed power P <b> 3 separated by the power smoothing device 3 is supplied to the power distribution system 30. Since the smoothed power P3 does not include a fluctuation output that is a high frequency component, for example, even a weak power distribution system 30 such as a small grid on a remote island can be interconnected.

  As described above, according to the present embodiment, the generated power P1 generated by the wind turbine generator 2 is separated into the separated power P2 including the fluctuation output that is a high frequency component and the smoothed power P3 not including the fluctuation output. The separated power P2 is supplied to the hydrogen production apparatus 4 to produce hydrogen. As a result, the separated power P2 that cannot be linked to the grid in the power distribution system 30 or the like and is discarded due to difficulty in use can be used for the production of hydrogen. In particular, the produced hydrogen can be suitably used for a fuel cell vehicle or a fuel cell that can be suitably used from a viewpoint of a traveling distance on a remote island or the like, and local production and consumption of energy can also be achieved. As a result, hydrogen can be produced using the generated power P1 of the wind power generator 2 effectively.

  In addition, according to the present embodiment, the smoothed power P3 separated from the generated power P1 of the wind power generator 2 does not include the fluctuation output, and therefore can satisfy the power acceptance standard in the distribution system 30. As a result, the smoothed power P3 separated from the generated power P1 can be supplied to the power distribution system 30 in linkage with the power distribution system 30, and the stabilization of the power distribution system 30 can be prevented from being impaired. That is, for example, in a weak power distribution system 30 such as a small-scale grid installed on a remote island, the generated power P1 of the wind power generator 2 is generally difficult to satisfy the power acceptance standard, and the power distribution system 30 Although it has been difficult to supply in a system-linked manner, the smoothed power P3 obtained by the present embodiment can be supplied to the weak power distribution system 30 in a linked manner. Anyone can easily receive from the power distribution system 30. As a result, the generated power P1 of the wind power generator 2 can be used effectively.

  Further, according to the present embodiment, a part of the generated power P1 can be supplied to the distribution system 30, so that the entire amount of the generated power P1 is used for hydrogen production as compared with the system as shown in FIG. Can be made unnecessary. Moreover, intentionally suppressing the power generation capacity of the wind power generation apparatus 2 can be made unnecessary, and the power generation capacity of the wind power generation apparatus 2 can be used effectively.

  Furthermore, the hydrogen production system 1 according to the present embodiment does not require the land condition that it is a climatic area with a lot of clear sky or the land condition that a vast site can be secured as compared with the system shown in FIG. Can do. For this reason, the conditions of an installation place can be eased and versatility can be improved. For example, when the hydrogen production system 1 according to the present embodiment is installed on a remote island, it is convenient for the wind power generator 2 because there is a sea around the remote island and the wind condition is suitable. Further, since the separated electric power P2 is used for the production of hydrogen, it is not necessary to use it for the heat itself (for example, hot water) with little demand, and further, it can be discharged from the cooling tower to the atmosphere. It can be unnecessary. For this reason, the generated power P1 of the wind power generator 2 can be effectively used by effectively using the separated power P2 for the production of hydrogen.

  In the above-described embodiment, an example in which the power smoothing device 3 has a high-pass filter function has been described. However, the present invention is not limited to this as long as the high frequency component can be removed to such an extent that it can be connected to a weak power distribution system 30 such as a small-scale grid. Also good. Moreover, in this Embodiment mentioned above, the example in which the electric power smoothing apparatus 3 has a bias addition function was demonstrated. However, the present invention is not limited to this as long as the negative electrode component lower than the reference potential can be transferred to the positive electrode component, and another means may be used. Furthermore, the power smoothing device 3 is not limited to the above-described configuration as long as the generated power P1 of the wind power generator 2 can be separated into the separated power P2 and the smoothed power P3.

  Moreover, in this Embodiment mentioned above, the example in which the smoothing electric power P3 isolate | separated by the electric power smoothing apparatus 3 is supplied to the power distribution system 30 was demonstrated. However, the smoothed power P3 may be supplied to an arbitrary load facility instead of the distribution system 30 for use.

(Second Embodiment)
Next, a hydrogen production system according to the second embodiment of the present invention will be described with reference to FIG.

  In the second embodiment shown in FIG. 4, switching for switching between a state in which the wind turbine generator is connected to the power smoothing device and a state in which the wind turbine generator is connected to the wind turbine generator by bypassing the power smoother. The main difference is that the device is further provided, and other configurations are substantially the same as those of the first embodiment shown in FIGS. In FIG. 4, the same parts as those of the first embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 4, in the present embodiment, a switcher 20 is provided between the wind power generator 2 and the power smoothing device 3. The switch 20 is configured to switch between a state in which the wind power generator 2 is connected to the power smoothing device 3 and a state in which the wind power generator 2 is connected to the hydrogen production device 4 by bypassing the power smoothing device 3. Has been.

  For example, in a state where the switch 20 connects the wind power generator 2 to the power smoothing device 3, the entire amount of the generated power P <b> 1 is supplied to the power smoothing device 3. In this case, similarly to the first embodiment shown in FIGS. 1 to 3, the generated power P1 is separated into the separated power P2 and the smoothed power P3, and the separated power P2 is supplied to the hydrogen production apparatus 4. Then, the smoothed power P3 is supplied to the power distribution system 30.

  On the other hand, in a state where the switch 20 connects the wind power generator 2 to the hydrogen production device 4 by bypassing the power smoothing device 3, the generated power P1 is not supplied to the power smoothing device 3, It is supplied to the hydrogen production apparatus 4. In this case, the entire amount of the generated power P1 is supplied to the hydrogen production device 4, and the production amount of hydrogen can be increased.

  In FIG. 4, the switcher 20 is shown outside the frame indicating the power smoothing device 3. The switcher 20 shown in FIG. 4 does not indicate that it is provided at the illustrated position as a hardware configuration, but indicates a functional position that affects the generated power P1. Therefore, the fact that the switch 20 is provided between the wind power generator 2 and the power smoothing device 3 means that the switch 20 is functionally located between the wind power generator 2 and the power smoothing device 3. This means that the hardware configuration may be provided outside the power smoothing device 3 or may be provided inside the power smoothing device 3. Further, the switching device is not limited to the configuration shown in FIG. 4. For example, although not shown, the power smoothing device 3 is bypassed from the supply path of the generated power P1 from the wind power generation device 2 to the power smoothing device 3. The path for doing so may be provided on the downstream side of the branch point at which the path branches. In addition, a switch (not shown) is added to the supply path of the separated power P2 from the power smoothing apparatus 3 to the hydrogen production apparatus 4 upstream of the junction where the path for bypassing the power smoothing apparatus 3 joins. May be provided.

  As described above, according to the present embodiment, the operation for supplying the generated power P <b> 1 generated by the wind power generator 2 to the power smoothing device 3 and the supply to the hydrogen production device 4 without supplying the power smoothing device 3. Can be selectively performed. When the entire amount of generated power P1 is supplied to the hydrogen production apparatus 4, the production amount of hydrogen can be increased. By adjusting these two types of operation time, the amount of hydrogen produced can be adjusted in units of, for example, one day or one week, and the amount of hydrogen produced can be adjusted according to the driver's intention. . That is, the hydrogen production system 1 according to the present embodiment can adjust the hydrogen production amount according to the driver's intention, and can realize the driver's intention to adjust the hydrogen production amount to a desired amount. it can.

(Third embodiment)
Next, a hydrogen production system according to the third embodiment of the present invention will be described with reference to FIG.

  The third embodiment shown in FIG. 5 is mainly different in that it further includes a switch controller that controls the switch based on whether or not the power of the distribution system is surplus. This is substantially the same as the second embodiment shown in FIG. In FIG. 5, the same parts as those of the second embodiment shown in FIG.

  As shown in FIG. 5, the hydrogen production system 1 according to the present embodiment further includes a switch controller 21 that controls the switch 20 based on whether or not the power of the distribution system 30 is surplus. The switch control unit 21 controls the switch 20 to connect the wind power generator 2 to the power smoothing device 3 when the power of the distribution system 30 is not excessive. As a result, the entire amount of the generated power P <b> 1 is supplied to the power smoothing device 3. On the other hand, when the power of the distribution system 30 is surplus, the switch controller 21 controls the switch 20 so that the wind power generator 2 bypasses the power smoothing device 3 and is connected to the hydrogen production device 4. . Thereby, the total amount of the generated power P1 is supplied to the hydrogen production apparatus 4, and the production amount of hydrogen can be increased.

  The switch control unit 21 obtains information on whether or not the power of the distribution system 30 is surplus from, for example, a company that supervises the distribution system 30 (for example, an electric power company), and switches based on the obtained information. 20 can be configured to control. Or the switch control part 21 acquires the information of the maximum power supply amount provided by the company which supervises the power distribution system 30 and the power consumption amount used at that time, for example, and based on these information, the switch of the power distribution system 30 You may comprise so that the switch 20 may be controlled by determining whether electric power is surplus. In this case, it is preferable to previously determine the basis for determining whether or not the power of the distribution system 30 is surplus.

  Moreover, you may comprise the switch control part 21 so that it may judge whether the electric power of the distribution system 30 is surplus according to time, and it controls the switch 20. In this case, it is preferable to preliminarily determine a time for determining whether or not the power is surplus, that is, a boundary between whether or not the power is surplus. For example, since the power of the distribution system 30 tends to be excessive at night, it is preferable to set a boundary time between daytime and nighttime. Thereby, in the daytime, the entire amount of the generated power P1 of the wind power generator 2 is supplied to the power smoothing device 3, and the hydrogen production device 4 can produce hydrogen using the separated power P2, and at night, The total amount of the generated power P1 is supplied to the hydrogen production device 4, and the hydrogen production device 4 can produce hydrogen using the total amount of the generated power P1.

  As described above, according to the present embodiment, when the power of the distribution system 30 is not excessive, the smoothed power P3 separated from the generated power P1 of the wind turbine generator 2 can be supplied to the distribution system 30. Thereby, it can contribute to the increase in the electric power of the distribution system 30, and the generated electric power P1 of the wind power generator 2 can be used effectively. On the other hand, when the power of the distribution system 30 is surplus, the generated power P <b> 1 of the wind power generator 2 can be supplied to the hydrogen production device 4 without being supplied to the power smoothing device 3. This makes it unnecessary to intentionally suppress the power generation capability of the wind power generator 2 even when the power of the power distribution system 30 is surplus, and is not discarded as surplus power. The power generation capacity can be used effectively.

(Fourth embodiment)
Next, a hydrogen production system according to the fourth embodiment of the present invention will be described with reference to FIG.

  In the fourth embodiment shown in FIG. 6, the power smoothing device is mainly different in that it has a function of adjusting the amount of added bias, and other configurations are the same as those shown in FIGS. This is substantially the same as the first embodiment. In FIG. 6, the same parts as those of the first embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, in the present embodiment, the power smoothing device 3 further has a function of adjusting the additional amount of the bias B. That is, the power smoothing device 3 inputs the bias B for the adder 14 to add to the signal S3 to the adder 14 and adjusts the added amount of the bias B (the value of the bias B) to be input. An adjustment unit 22 is provided. In order to enable power conversion by the inverter power supply circuit 18 of the power conversion unit 12, the bias addition amount adjustment unit 22 sets the addition amount of the bias B from the addition amount in which the negative electrode component lower than the reference potential shifts to the positive electrode component. It is preferable not to change the addition amount to a small amount. Note that the additional amount of the bias B may be a constant value or calculated based on a value set according to a predetermined rule or the like, for example, one or more past generated electric power P1 such as one minute before. It may be a value.

  For example, when the additional amount of the bias B is increased by the bias additional amount adjusting unit 22, the signal value of the signal S4 (see FIG. 3D) can be increased, and the inverter power supply circuit 18 of the power smoothing device 3 The output separated power P2 can be increased. As a result, the amount of hydrogen produced in the hydrogen production apparatus 4 can be increased. In this case, since the separated power P2 increases, the smoothed power P3 supplied to the distribution system 30 decreases. By the way, in the first embodiment, when it is desired to produce more hydrogen than the production amount of hydrogen determined by a high frequency component due to wind fluctuation, which is a natural phenomenon, and a preset bias B, in the first embodiment, one day or one week. Although it is possible to adjust the total amount of hydrogen produced by a unit such as a hit, when it is desired to immediately increase the amount of hydrogen produced, the bias addition amount adjusting unit 22 increases the addition amount of the bias B. The production amount of hydrogen can be increased rapidly.

  Thus, according to the present embodiment, the amount of bias B added can be adjusted, so that the amount of hydrogen produced can be easily and finely adjusted in time. Therefore, the amount of hydrogen produced can be adjusted according to the driver's intention, and the driver's intention to quickly adjust the amount of hydrogen produced to a desired amount can be realized.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof. Moreover, as a matter of course, these embodiments can be partially combined as appropriate within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Hydrogen production system 2 Wind power generator 3 Electric power smoothing apparatus 4 Hydrogen production apparatus 20 Switching device 21 Switching device control part 30 Distribution system P1 Generated electric power P2 Separation electric power P3 Smoothing electric power

Claims (8)

A wind power generator,
A power smoothing device that separates generated power generated by the wind turbine generator into separated power and smoothed power including a fluctuation output that is a frequency component higher than a predetermined frequency; and
A hydrogen production system, comprising: a hydrogen production device that produces hydrogen using the separated power separated by the power smoothing device. The power smoothing device is linked to a power distribution system,
2. The hydrogen production system according to claim 1, wherein the smoothed power separated by the power smoothing device is supplied to a distribution system. A switch provided between the wind power generator and the power smoothing device;
The switch switches between a state in which the wind turbine generator is connected to the power smoothing device and a state in which the wind turbine generator is connected to the hydrogen production device by bypassing the power smoother. The hydrogen production system according to claim 2. Further comprising a switch controller for controlling the switch;
The switch control unit connects the wind power generator to the power smoothing device when the power of the distribution system is not surplus, and the wind power generator is connected to the power smoothing when the power of the power distribution system is surplus. The hydrogen production system according to claim 3, wherein the switch is controlled so as to bypass the gasification apparatus and connect to the hydrogen production apparatus.   The hydrogen production system according to any one of claims 1 to 4, wherein the power smoothing device has a high-pass filter function.   The hydrogen production system according to claim 1, wherein the power smoothing device has a bias addition function.   The hydrogen production system according to claim 6, wherein the power smoothing device has a function of adjusting an additional amount of bias.   The hydrogen production system according to any one of claims 1 to 7, wherein the hydrogen production apparatus electrolyzes water to generate hydrogen.

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