JPH11148987A - Power supply system to power supply for nuclear fusion apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the disturbance of a power supply system by normally supplying energy from a power system, and by taking in/out the energy to/from an energy-storing device when a load fluctuates. SOLUTION: In a power supply system to a power supply 2 for a nuclear fusion apparatus for supplying power to a heater power supply for generating a plasma current of the nuclear fusion device via an energy-storing device 3 from a power system 1, a coil power supply or plasma heating to create a plasma entrapment magnetic field, and maintaining the generation of the plasma current, a branch line 1a is connected to the power system 1, the power supply 2 for the nuclear fusion device and the energy-storing device 3 are connected to the branch line 1a in parallel, and a controlling device 4 is connected to the energy-storing device 3. A current-measuring device 5 for controlling I/O of the energy-storing device 3 according to the fluctuation of the current or a time change rate at the branch line 1a is provided and is connected to the controlling device 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply system for a fusion device power supply for supplying a large amount of power from an energy storage device to the fusion device power supply.

[0002]

2. Description of the Related Art The power source of a fusion device includes a power source for generating a plasma current of the fusion device, a power source for generating a plasma confinement magnetic field, a plasma heating device, and a heating device power source for maintaining and generating plasma current. Plasma current drive, control, confinement of fusion devices,
Large power is required instantaneously for heating.

When the large power is received from a general power system, the power system is disturbed. For this reason, the fusion device adopts a method of installing an energy storage device, temporarily storing power from the power system in the energy storage device, and then using it.

[0004] Referring to FIG. 11, a power supply system to a conventional power supply for a fusion device in which a conventional energy storage device is installed will be described. In FIG. 11, a branch line 1 branched from the power system 1
a, the energy storage device 3 is connected to the energy storage device 3, the fusion device power source 2 is connected to the energy storage device 3 via the fusion device power input line 2a, and the energy storage device-control device connection is connected to the energy storage device 3. The control device 4 is connected via a line 4a.

When a large amount of power is supplied to the power supply 2 for a fusion device, the power is temporarily supplied from the power system 1 to the energy storage device 3 through the branch line 1a, that is, the energy storage device input line 3a, and the energy is stored. And release it to the fusion device power supply 2 in a short time according to a command from the control device 4.

[0006]

A fusion device having a short operation time requires a small amount of electric power, and the capacity of the energy storage device 3 may be small. However, in a fusion device in which the operation time is long or continuous, the capacity required for the energy storage device 3 becomes extremely large, continuous operation becomes impossible, and its production becomes impractical. There are issues.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and it is an object of the present invention to supply power from an electric power system at all times and to supply power from an energy storage device only when a load change is likely to cause disturbance to the electric power system. Accordingly, an object of the present invention is to provide a power supply system to a power supply for a fusion device having an energy storage device with a small capacity for a fusion device in which the operation time is long or continuous.

[0008]

According to a first aspect of the present invention, power is supplied from a power system to a branch-connected energy storage device, and the energy storage device is supplied with a signal from a control device connected to the energy storage device. In a power supply system for a fusion device power supply for supplying power accumulated from the device to the fusion device power supply, a branch line is connected to the power system, and the fusion device power supply and the energy are connected to the branch line. Connect storage devices in parallel via their respective input lines,
A measuring device for measuring at least one of current, power, voltage or frequency is provided between the branch line or the branch line and the control device, and a measurement signal is transmitted between the measurement device and the control device. It is characterized by being connected by an input line.

According to a second aspect of the present invention, power is supplied from a power system to a branch-connected energy storage device, and the power stored from the energy storage device is supplied by a signal from a control device connected to the energy storage device. In a power supply system for a fusion device power supply for supplying power to a fusion device power supply, a branch line is connected to the power system, and the fusion device power supply and the energy storage device are respectively connected to the branch line. A measuring device for measuring current or power between the power supply input line for the fusion reactor or the input line and the control device is provided in parallel with each other through a wire, and a connection between the measuring device and the control device is provided. It is characterized by being connected by each measurement signal input line.

The invention corresponding to claim 3 is characterized in that, in the invention according to claim 2, a power supply output reference generator for inputting a power supply output reference generation signal is provided to the power supply for the fusion device and the control device. I do.

According to a fourth aspect of the present invention, in the third aspect of the present invention, a plasma operation scenario control device is provided between the power supply output reference generator and the control device.

According to a fifth aspect of the present invention, power is supplied from a power system to a branch-connected energy storage device, and the power stored from the energy storage device is supplied by a signal from a control device connected to the energy storage device. In a power supply system for a power supply for a fusion device, which is supplied to a power supply for a fusion device, a power supply for the fusion device, a first energy storage device, and a second energy storage device are connected to a branch line connected to the power system. Connect in parallel via each input line,
A control device is provided between the first energy storage device and the second energy storage device.

The invention corresponding to claim 6 is the invention according to claim 5, wherein a plurality of control devices are connected in series between the first energy storage device and the second energy storage device. I do.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a power supply device for a power supply for a fusion device according to the present invention will be described with reference to FIG. In FIG. 1, a branch line 1a is connected to a power system 1,
A fusion device power input line 2a and an energy storage device input line 3a are connected in parallel to the branch line 1a, a fusion device power source 2 is connected to the fusion device power input line 2a, and an energy storage device input line. The energy storage device 3 is connected to 3a. The energy storage device 3 and the control device 4 are connected by an energy storage device-control device connection line 4a. A current measuring device 5 is provided on the branch line 1a, and the current measuring device 5 and the control device 4 are connected by a current signal input line 5a.

In this embodiment, as is apparent from FIG. 1, the energy storage device 3 includes a power system 1, a power source 2 for a fusion device.
Also, the connection means of the energy storage device 3 is different from the conventional example, and the point that the current measuring device 5 is provided is also different from the conventional example.

According to the present embodiment, the power system 1
From the energy storage device 3 to the fusion device power supply 2 when the current value detected by the current measurement device 5 or the time change rate of the current exceeds a set value. The input / output of the energy storage device 3 is controlled by the control device 4 so that the energy is supplied.

Therefore, since the flow of power from the power system 1 can be limited, disturbance of the power system 1 can be minimized, and rapid fluctuation of power from the power system 1 can be suppressed. it can.

Next, a second embodiment according to the present invention will be described with reference to FIG. This embodiment is different from the first embodiment shown in FIG. 1 in that a power measuring device 6 is provided instead of the current measuring device 5, and the power measuring device 6 is connected to a control device via a power signal input line 6a. 4 has been connected. The other parts are the same as those in FIG. 1, and the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description of the overlapping parts will be omitted.

The power measuring device 6 controls the input and output of the energy storage device 3 between the power system 1 and the power source 2 for the fusion device and the energy storage device 3 according to the power fluctuation or the rate of time change. When the power value or the time rate of change of the power exceeds the set value, the energy storage device 3 is controlled to supply power to the fusion device power source 2. For this reason, it is possible to limit the flow of electric power from the electric power system 1, and it is possible to minimize disturbance in the electric power supply system.

Next, a third embodiment according to the present invention will be described with reference to FIG. This embodiment is different from the first embodiment shown in FIG. 1 in that a voltage measuring device 7 is provided instead of the current measuring device 5, and the voltage measuring device 7 is connected to a control device via a voltage signal input line 7a. 4 has been connected. The other parts are the same as those in FIG. 1, and the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description of the overlapping parts will be omitted.

The voltage measuring device 7 controls the input and output of the energy storage device 3 between the power system 1 and the power supply 2 for the fusion device and the energy storage device 3 in accordance with the voltage fluctuation or the rate of time change. When the voltage value or the time rate of change of the voltage exceeds the set value, control is performed so that power is supplied from the energy storage device 3 to the fusion device power supply 2. For this reason, it is possible to limit the flow of electric power from the electric power system 1, thereby suppressing disturbance of the electric power supply system.

Next, a fourth embodiment according to the present invention will be described with reference to FIG. This embodiment differs from the first embodiment shown in FIG. 1 in that a frequency measuring device 8 is provided instead of the current measuring device 5. The other parts are the same as those in FIG. 1, and the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description of the overlapping parts will be omitted.

The frequency measuring device 8 controls the input and output of the energy storage device 3 between the power system 1 and the power source for the fusion device and the energy storage device 3 in accordance with the frequency fluctuation or the time change rate. When the frequency or the time rate of change of the frequency exceeds the set value, control is performed so that power is supplied from the energy storage device 3 to the power supply. For this reason, the flow of power from the power system 1 can be limited, and disturbance of the power supply system can be minimized.

Next, a fifth embodiment according to the present invention will be described with reference to FIG. This embodiment is different from the first embodiment shown in FIG. 1 in that a current measuring device 5 is provided between a power source 2 for a fusion device, a power system 1 and an energy storage device 3, and the current measuring device 5 is That is, it is connected to the control device 4 by the signal input line 5a. The other parts are the same as those in FIG. 1, and the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description of the overlapping parts will be omitted.

When the current value or the current rate of change due to the load fluctuation of the fusion device power supply 2 exceeds the set value, the power is supplied from the energy storage device 3 to the fusion device power supply 2. Is done. For this reason, it is possible to limit the flow of electric power from the electric power system 1 and suppress disturbance of the electric power supply system.

Next, a sixth embodiment according to the present invention will be described with reference to FIG. This embodiment is different from the fifth embodiment shown in FIG. 5 in that a power measuring device 6 is used instead of the current measuring device 5, and the power measuring device 6 is controlled by a power signal input line 6a. 4 has been connected. Other parts are the same as those in FIGS. 1 and 5, and the same parts as those in FIGS. 1 and 5 are denoted by the same reference numerals, and the description of the overlapping parts will be omitted.

According to the present embodiment, when the power value or the time rate of change of the power of the fusion device power supply due to the load fluctuation exceeds the set value, the power is supplied from the energy storage device 3 to the fusion device power supply 2. Is supplied. For this reason, the flow of power from the power system 1 can be limited, and disturbance of the power supply system can be minimized.

Next, a seventh embodiment according to the present invention will be described with reference to FIG. In this embodiment, a power supply 2 for a fusion device is used.
And the power supply output reference generator 9 is connected to the power supply output reference generation signal input line 9a which is output to the control device 4, respectively. That is, the branch line 1a is connected to the power system 1, and the fusion device power supply 2 and the energy storage device 3 are connected to the branch line 1a in parallel by the respective input lines 2a and 3a. The energy storage device 3 and the control device 4 are connected by an energy storage device-control device connection line 4a.
A power output reference generator 9 is connected to the power supply 2 for the fusion device and the control device 4.

In the present embodiment and the first embodiment, the output reference signal from the power output reference generator 9 is simultaneously output to the fusion device power supply 2 and the control device 4 of the energy storage device 3. Are different in that

When the output standard exceeds the set value, the power is limited so that power is supplied from the energy storage device 3 to the fusion device power supply 2. For this reason, the inflow of power from the power system 1 can be limited, and disturbance of the power system 1 can be minimized.

Next, an eighth embodiment according to the present invention will be described with reference to FIG. This embodiment is different from the seventh embodiment in that a plasma operation scenario control device 10 is provided between a power supply output reference generator 9 and a control device 4, and the plasma operation scenario control device 10 is connected to a power supply output reference generation signal input. Line 9
a and the plasma operation scenario control device 10 are connected to the power supply output reference generator 9 and the control device 4 by the power supply output reference generation signal input line 9a and the plasma operation scenario signal input line 10a. Other parts are the same as those in FIG.
The same parts as those described above are denoted by the same reference numerals and the description of the overlapping parts will be omitted.

In the present embodiment and the first embodiment, a plasma operation scenario control device 10 for controlling the input / output of the energy storage device 3 according to the plasma operation scenario.
Is different. Therefore, control is performed so that power is supplied from the energy storage device 3 to the power source 2 for the fusion device in accordance with the plasma operation scenario. For this reason, the flow of power from the power system 1 can be limited, and disturbance of the power supply system can be minimized.

Next, a ninth embodiment of the present invention will be described with reference to FIG. In this embodiment, a branch line 1a is connected to the power system 1.
Is connected to the power supply 2 for the fusion device
Energy storage device 3 and the second energy storage device 12 are connected in parallel by respective signal input lines 2a, 3a, 12a, and a first energy storage device 3 and a second energy storage device 12 are connected between the first energy storage device 3 and the second energy storage device 12. The first control device 11 is connected to the first control device 11 by respective connection lines 4a, 11a.
The energy storage device 3 and the second energy storage device 12 are connected.

This embodiment is different from the first embodiment shown in FIG. 1 in that a first control device 11 for controlling the two energy storage devices 3 and 12 in the same manner is provided. ,
Two energy storage devices 3, 12 from the first control device 11
However, the power is limited so that an equal amount of electric power is supplied to the fusion device power supply 2. For this reason, the flow of power from the power system 1 can be limited, and disturbance of the power supply system can be minimized.

Next, a tenth embodiment according to the present invention will be described with reference to FIG. This embodiment is different from the ninth embodiment in that the second control device 13 and the third control device 14 are connected between the first energy storage device 3 and the second energy storage device 12, respectively. That is, they are connected in series by the lines 4a, 13a and 14a.

This embodiment is different from the first embodiment shown in FIG. 1 in that a second control device 13 and a third control device 14 for sequentially controlling two energy storage devices 3 and 12 are provided. The point provided is different.

According to the present embodiment, first, the second controller 13 controls the first energy storage device 3 so that power is supplied to the power source 2 for the fusion device. When the energy stored in 3 is exhausted, control is performed so that electric power is sequentially supplied from the third control device 14 to the second energy storage device 12. For this reason, the flow of power from the power system 1 can be limited, and disturbance of the power supply system can be minimized.

[0038]

According to the present invention, power is supplied from the power system at all times, and power is supplied from the energy storage device only at the time of a load change that is likely to cause disturbance to the system, so that the operation time can be extended or reduced. In addition, it is possible to provide a power supply system for the fusion device which is operated continuously and has a small capacity for the fusion device current.

[Brief description of the drawings]

FIG. 1 is a system diagram showing a first embodiment of a power supply system to a power supply for a fusion device according to the present invention.

FIG. 2 is a system diagram showing a second embodiment of a power supply system to a power supply for a fusion device according to the present invention.

FIG. 3 is a system diagram showing a third embodiment of a power supply system for a power supply for a fusion device according to the present invention.

FIG. 4 is a system diagram showing a fourth embodiment of a power supply system to a power supply for a fusion device according to the present invention.

FIG. 5 is a system diagram showing a fifth embodiment of a power supply system to a power supply for a fusion device according to the present invention.

FIG. 6 is a system diagram showing a sixth embodiment of a power supply system to a power supply for a fusion device according to the present invention.

FIG. 7 is a system diagram showing a seventh embodiment of a power supply system to a power supply for a fusion device according to the present invention.

FIG. 8 is a system diagram showing an eighth embodiment of a power supply system to a power supply for a fusion device according to the present invention.

FIG. 9 is a system diagram showing a ninth embodiment of a power supply system to a power supply for a fusion device according to the present invention.

FIG. 10 is a system diagram showing a tenth embodiment of a power supply system for a power supply for a fusion device according to the present invention.

FIG. 11 is a system diagram for explaining a conventional power supply system for a fusion device power supply.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Power system, 1a ... Branch line, 2 ... Power supply, 2a ... Power supply input line for fusion devices, 3 ... Energy storage device (first),
3a: Energy storage device input line (first), 4: Control device, 4a: Connection line between energy storage device and control device, 5
... current measuring device, 5a ... current signal input line, 6 ... power measuring device, 6a ... power signal input line, 7 ... voltage measuring device, 7a
... voltage signal input line, 8 ... frequency measuring device, 8a ... frequency signal input line, 9 ... power supply output reference generator, 9a ... power supply output reference generation signal input line, 10 ... plasma operation scenario control device, 10a ... plasma operation scenario Signal input line, 11 ... 1st
Control device, 11a... Connection line between the second control device and the second energy storage device, 12... Second energy storage device, 12
a ... second energy storage device input line, 13 ... second control device, 13a ... third control device-fourth control device connection line, 14 ... third control device, 14a ... fourth control Apparatus-second
Connection line between energy devices.

Claims (6)

[Claims] 1. An electric power system supplies power to a branch-connected energy storage device, and supplies power stored from the energy storage device to a power supply for a fusion device by a signal from a control device connected to the energy storage device. In a power supply system for a fusion device power supply, a branch line is connected to the power system, and the fusion device power supply and the energy storage device are connected in parallel to the branch line via respective input lines. A measuring device for measuring at least one of current, power, voltage or frequency between the branch line or the branch line and the control device; A power supply system for a power supply for a fusion device, wherein the power supply system is connected by a signal input line. 2. An electric power system supplies power to a branch-connected energy storage device, and supplies the power stored from the energy storage device to a power supply for a fusion device according to a signal from a control device connected to the energy storage device. In a power supply system for a fusion device power supply, a branch line is connected to the power system, and the fusion device power supply and the energy storage device are connected in parallel to the branch line via respective input lines. A measuring device for measuring current or power is provided between the fusion reactor power supply input line or the input line and the control device, and a measurement signal input line is provided between the measuring device and the control device. A power supply system for a power supply for a fusion device, characterized by being connected. 3. A power supply system for a fusion device power supply, comprising: a power supply reference generator for inputting a power output reference generation signal to the fusion device power supply and the control device. 4. The power supply system for a fusion device power supply according to claim 3, wherein a plasma operation scenario control device is provided between the power supply output reference generator and the control device. 5. An electric power system supplies power to a branch-connected energy storage device, and supplies power stored from the energy storage device to a power supply for a fusion device by a signal from a control device connected to the energy storage device. In the power supply system for the fusion device power supply, a branch line is connected to the power system, and the branch device power supply and the first power supply are connected to the branch line.
Energy storage device and a second energy storage device are connected in parallel via respective input lines, and a control device is provided between the first energy storage device and the second energy storage device. Characteristic power supply system for fusion device power supply. 6. The fusion device power supply according to claim 5, wherein a plurality of control devices are connected in series between said first energy storage device and said second energy storage device. Power supply system.