Summary of the invention
At problems of the prior art, the object of the present invention is to provide a kind of self-feeding controllable transductor.
The present invention is for solving its concrete technical problem, the technical scheme that is adopted is: the present invention is by including fuel tank, the magnetic conductive core column that is provided with in it, for it constitutes the left side of magnetic circuit, right side magnetic yoke and last, lower yoke, wherein in the magnetic conductive core column from the post surface outwards sheathed successively control winding, net side winding and the voltage that is located at the fuel tank outside, electric current, temperature sensor, light and heavy gas, the main part that pressure sensor and the terminal box that supplies each sensor signal to draw usefulness are formed, rectification and filter, checkout equipment and control unit are formed, as shown in Figure 1, wherein main part comprises net side winding and control winding.Net side winding links to each other with transmission line, one end of control winding links to each other with the input of rectification and filter, the output of rectification and filter feeds back to the other end of control winding, control unit respectively with main part in the terminal box that links to each other with each sensor signal link to each other, controllable silicon in the straightening and filtering unit links to each other, output in the checkout equipment links to each other, the input in the checkout equipment also links to each other with transmission line.
Described main part is made of net side winding and control winding, is multi winding transformer.Wherein every phase magnetic circuit be by 2-6 magnetic conductive core column and with its group be the left and right side magnetic yoke of magnetic circuit, upper and lower yoke is formed, and in the magnetic conductive core column, outwards is provided with control winding and net side winding successively from the post surface.Net side winding and control winding can be with connecting or parallel-connection structure.
The rectifier transformer primary winding links to each other with the control winding in described rectification and the filter, middle parallel filter, and rectifier transformer output is connected with Group of Silicon Controlled Rectifier again.Wherein rectifier transformer and Group of Silicon Controlled Rectifier realize rectification, and filtering realizes by capacitor and inductance, and in parallel with the rectifier transformer primary winding, and this filter is a kind of or its combination of 3 subharmonic filters, 5 subharmonic filters and high-order harmonic filtering device.
Described checkout equipment is in order to the voltage in the detection of grid, electric current, reactive power and active power.
Described control unit is in order to change by the detection of grid parameter, with gather each position voltage amount from main part, the magnitude of current, temperature signal, regulate thyristor trigger angle change DC excitation electric current in the straightening and filtering unit, that is to say: the control winding obtains the alternating current that induced potential produces by electromagnetic induction principle by net side winding, be input in rectification and the filter, control unit is according to the detected line voltage of checkout equipment, the variation of reactive power and active power, automatically control the silicon controlled trigger angle (the trigger angle excursion is 0-180 °) in rectification and the filter, thereby changed the direct current that is fed back to the control winding, promptly change the DC excitation electric current in the core of reactor, the degree of saturation of control iron core changes the magnetic permeability in the iron core, final reactance value and the capacity of realizing changing reactor.
The invention has the beneficial effects as follows: be applied to not only realize in the electric power system automatic and dynamically compensating of electric power networks reactive power, can effectively suppress system's overvoltage and secondary arc current, eliminate the generator self-excitation; Also realize real flexible transmission, suppressed power frequency and switching overvoltage, reduced line loss, thereby improved the reliability and the fail safe of operation of power networks.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the circuit theory diagrams of the specific embodiment of the invention 1;
Fig. 3 is main part iron core and a coil assembling schematic diagram in the specific embodiment of the invention 1;
Fig. 4 is the circuit theory diagrams of the specific embodiment of the invention 2;
Fig. 5 is main part iron core and a coil assembling schematic diagram in the specific embodiment of the invention 2;
Fig. 6 is the circuit theory diagrams of the specific embodiment of the invention 3;
Fig. 7 is main part iron core and a coil assembling schematic diagram in the specific embodiment of the invention 3;
Fig. 8 is the circuit theory diagrams of the specific embodiment of the invention 4;
Fig. 9 is main part iron core and a coil assembling schematic diagram in the specific embodiment of the invention 4;
Figure 10 is the circuit theory diagrams of the specific embodiment of the invention 5;
Figure 11 is main part iron core and a coil assembling schematic diagram in the specific embodiment of the invention 5;
Figure 12 is the circuit theory diagrams of the specific embodiment of the invention 6;
Figure 13 is main part iron core and a coil assembling schematic diagram in the specific embodiment of the invention 6;
Figure 14 is the circuit theory diagrams of the specific embodiment of the invention 7;
Figure 15 is the iron core and the coil assembling schematic diagram of a device body of main part in the specific embodiment of the invention 7;
Figure 16 is the iron core and the coil assembling schematic diagram of another device body of main part in the specific embodiment of the invention 7;
Figure 17 is the circuit theory diagrams of the specific embodiment of the invention 8;
Figure 18 is the iron core and the coil assembling schematic diagram of a device body of main part in the specific embodiment of the invention 8;
Figure 19 is the iron core and the coil assembling schematic diagram of another device body of main part in the specific embodiment of the invention 8;
Figure 20 is rectification and a filter electrical principle schematic diagram among Fig. 1.
1 main part among the figure, 2 rectifications and filter, 3 checkout equipments, 4 control units, 5 net side windings, 6 control windings, the two return yoke iron cores of 7 single-phase twin columns, the two return yoke iron cores of the synthetic stem stem of 8 single-phase lists, the two return yoke iron cores of 9 three-phases, six posts, the two return yoke iron cores of 10 three-phases, three synthetic stem stems, the two return yoke iron cores of 11 three-phase three-columns, H
12, H
13Two net sides of every phase winding, K
14, K
15Two control of every phase winding, H
16Every net side winding that adopts single coil structure mutually
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
The present invention is by including fuel tank, the magnetic conductive core column that is provided with in it, be the left and right side magnetic yoke and the upper and lower yoke of its formation magnetic circuit, wherein in the magnetic conductive core column from post surface outwards sheathed successively control winding, net side winding and the voltage, electric current, the temperature sensor that are located at the fuel tank outside, main part 1, rectification and the filter 2 that light and heavy gas, pressure sensor and the terminal box that supplies each sensor signal to draw usefulness are formed, checkout equipment 3 and control unit 4 are formed, as shown in Figure 1, wherein main part comprises net side winding 5 and control winding 6.Net side winding one end links to each other with transmission line, and the other end links to each other with little reactor, little reactor other end ground connection.One end of control winding links to each other with the input of rectification and filter, the output of rectification and filter 2 feeds back to the other end of control winding 6, control unit 4 respectively with main part 1 in the terminal box that links to each other with each sensor signal link to each other, controllable silicon in the straightening and filtering unit links to each other, output in the checkout equipment links to each other, the input in the checkout equipment 3 also links to each other with transmission line.
Described main part is made of net side winding and control winding, is multi winding transformer.Wherein every phase magnetic circuit be by 2-6 magnetic conductive core column and with its group be the left and right side magnetic yoke of magnetic circuit, upper and lower yoke is formed, and in the magnetic conductive core column, outwards is provided with control winding and net side winding successively from the post surface.Net side winding and control winding can be with connecting or parallel-connection structure.
The rectifier transformer primary winding links to each other with the control winding in described rectification and the filter, middle parallel filter, and rectifier transformer output is connected with the silicon controlled rectifier group again.Wherein rectifier transformer and silicon controlled rectifier group realize rectification, and filtering is realized that by capacitor and inductance in parallel with the rectifier transformer primary winding, this filter is a kind of or its combination of 3 subharmonic filters, 5 subharmonic filters and high-order harmonic filtering device.
Described checkout equipment is in order to the voltage in the detection of grid, electric current, reactive power and active power.
Described control unit is in order to change by the detection of grid parameter, with gather each position voltage amount from main part 1, the magnitude of current, temperature signal, regulate thyristor trigger angle in the straightening and filtering unit, change the DC excitation electric current, that is to say: the control winding obtains induced potential by electromagnetic induction principle by net side winding, induced potential produces alternating current and is input in rectification and the filter, control unit is according to the detected line voltage of checkout equipment, the variation of reactive power and active power, automatically control the silicon controlled trigger angle (the trigger angle excursion is 0-180 °) in rectification and the filter, thereby changed the direct current that is fed back to the control winding, promptly change the DC excitation electric current in the core of reactor, the degree of saturation of control iron core changes the magnetic permeability in the iron core, final reactance value and the capacity of realizing changing reactor.
The present invention is made up of main part 1, rectification and filter 2, checkout equipment 3 and control unit 4, and as shown in Figure 1, wherein main part comprises net side winding 5 and control winding 6.
Operation principle of the present invention is as follows: net side winding and control winding generation electromagnetic induction, induced potential in the control winding produces alternating current and is input in rectification and the filter 2, control unit 4 is according to checkout equipment 3 detected line voltages, the variation of reactive power and active power, automatically control the silicon controlled trigger angle (the trigger angle excursion is 0-180 °) in rectification and the filter 2, thereby changed the direct current that is fed back to the control winding, promptly change the DC excitation electric current in the core of reactor, the degree of saturation of control iron core changes the magnetic permeability in the iron core, final reactance value and the capacity of realizing changing reactor.
Embodiment 1;
Be illustrated in figure 2 as the three-phase system that three single-phase reactors are formed, every net side winding H in mutually
12, H
13Two coils adopt parallel-connection structure, and three-phase net side winding one end links to each other with three phase line respectively, and the other end links to each other with little reactor, little reactor other end ground connection.Three single-phase control winding groups are the control winding, every winding of controlling mutually all has two coils, mutually alternate of the same name group of coil joins end to end, group is series arm, article two, branch road parallel connection, its two place and tie-point link to each other with rectification and filter feedback output end e, f point respectively, get its induced potential a, b from two coil tap ends of directly connecting mutually, from another mutually not directly the tap of top up and down of two coils of series connection get its induced potential c, d, a, b, c, d point link to each other with rectifier transformer primary winding in rectification and the filter respectively.The controllable silicon part of rectification and filter links to each other with control unit 4.Checkout equipment 3 links to each other with transmission line, and its output links to each other with control unit.Control unit links to each other with three single-phase reactor secondary singal terminal box lead-out terminals respectively, and secondary singal comprises: current signal, temperature signal, light and heavy gas, pressure relief valve protection.Its holding wire links to each other with the terminal box input terminal.The iron core of each reactor in the present embodiment adopts the two return yoke formulas of single-phase twin columns, and its iron core and coil assembly relation are as shown in Figure 3.
Embodiment 2:
Be illustrated in figure 4 as the three-phase system that three single-phase reactors are formed, every middle mutually net side winding H
12, H
13Adopt two coil cascaded structures, three-phase net side winding one end links to each other with three phase line respectively, and the other end links to each other with little reactor, little reactor other end ground connection.Three single-phase control winding groups are the control winding, every winding of controlling mutually all has two coils, mutually alternate of the same name group of coil joins end to end, group is series arm, article two, branch road parallel connection, its two place and tie-point link to each other with rectification and filter feedback output end e, f point respectively, get its induced potential a, b from two coil tap ends of directly connecting mutually, from another mutually not directly the tap of top up and down of two coils of series connection get its induced potential c, d, a, b, c, d point link to each other with rectifier transformer primary winding in rectification and the filter respectively.The controllable silicon part of rectification and filter links to each other with control unit 4.Checkout equipment 3 links to each other with transmission line, and its output links to each other with control unit.Control unit links to each other with three single-phase reactor secondary singal terminal box lead-out terminals respectively, and secondary singal comprises: current signal, temperature signal, light and heavy gas, pressure relief valve protection.Its holding wire links to each other with the terminal box input terminal.The iron core of each reactor in the present embodiment adopts the two return yoke formulas of single-phase twin columns, and its iron core and coil assembly relation are as shown in Figure 5.
Embodiment 3:
Be illustrated in figure 6 as the three-phase system that three single-phase reactors are formed, the net side winding H of every phase
16Adopt single coil structure, three-phase net side winding one end links to each other with three phase line respectively, and the other end links to each other with little reactor, little reactor other end ground connection.Three single-phase control winding groups are the control winding, every winding of controlling mutually all has two coils, mutually alternate of the same name group of coil joins end to end, group is series arm, article two, branch road parallel connection, its two place and tie-point link to each other with rectification and filter feedback output end e, f point respectively, get its induced potential a, b from two coil tap ends of directly connecting mutually, from another mutually not directly the tap of top up and down of two coils of series connection get its induced potential c, d, a, b, c, d point link to each other with rectifier transformer primary winding in rectification and the filter respectively.The controllable silicon part of rectification and filter links to each other with control unit 4.Checkout equipment 3 links to each other with transmission line, and its output links to each other with control unit.Control unit links to each other with three single-phase reactor secondary singal terminal box lead-out terminals respectively, and secondary singal comprises: current signal, temperature signal, light and heavy gas, pressure relief valve protection.Its holding wire links to each other with the terminal box input terminal.The iron core of each reactor in the present embodiment adopts the two return yoke formulas of the synthetic stem stem of single-phase list, and its iron core and coil assembly relation are as shown in Figure 7.
Embodiment 4:
Be illustrated in figure 8 as the shared iron core of three-phase and form three-phase integrated reactor, net side winding H
12, H
13Adopt parallel-connection structure, three-phase net side winding one end links to each other with three phase line respectively, and the other end links to each other with little reactor, little reactor other end ground connection.Three single-phase control winding groups are the control winding, every winding of controlling mutually all has two coils, mutually alternate of the same name group of coil joins end to end, group is series arm, article two, branch road parallel connection, its two place and tie-point link to each other with rectification and filter feedback output end e, f point respectively, get its induced potential a, b from two coil tap ends of directly connecting mutually, from another mutually not directly the tap of top up and down of two coils of series connection get its induced potential c, d, a, b, c, d point link to each other with rectifier transformer primary winding in rectification and the filter respectively.The controllable silicon part of rectification and filter links to each other with control unit 4.Checkout equipment 3 links to each other with transmission line, and its output links to each other with control unit.Control unit links to each other with three-phase reactor secondary singal terminal box lead-out terminal, and secondary singal comprises: current signal, temperature signal, light and heavy gas, pressure relief valve protection.Its holding wire links to each other with the terminal box input terminal.The iron core of the reactor main part in the present embodiment adopts the two return yoke formulas of three-phase six posts, and its iron core and coil assembly relation are as shown in Figure 9.
Embodiment 5:
Be that the shared iron core of three-phase is formed three-phase integrated reactor, net side winding H as shown in figure 10
12, H
13Adopt two coil cascaded structures, three-phase net side winding one end links to each other with three phase line respectively, and the other end links to each other with little reactor, little reactor other end ground connection.Three single-phase control winding groups are the control winding, every winding of controlling mutually all has two coils, mutually alternate of the same name group of coil joins end to end, group is series arm, article two, branch road parallel connection, its two place and tie-point link to each other with rectification and filter feedback output end e, f point respectively, get its induced potential a, b from two coil tap ends of directly connecting mutually, from another mutually not directly the tap of top up and down of two coils of series connection get its induced potential c, d, a, b, c, d point link to each other with rectifier transformer primary winding in rectification and the filter respectively.The controllable silicon part of rectification and filter links to each other with control unit 4.Checkout equipment 3 links to each other with transmission line, and its output links to each other with control unit.Control unit links to each other with reactor main body secondary singal terminal box lead-out terminal, and secondary singal comprises: current signal, temperature signal, light and heavy gas, pressure relief valve protection.Its holding wire links to each other with the terminal box input terminal.The iron core of the reactor main part in the present embodiment adopts the two return yoke formulas of three-phase six posts, and its iron core and coil assembly relation are as shown in figure 11.
Embodiment 6:
Be that the shared iron core of three-phase is formed three-phase integrated reactor, net side winding H as shown in figure 12
16Adopt single coil structure, three-phase net side winding one end links to each other with three phase line respectively, and the other end links to each other with little reactor, little reactor other end ground connection.Three single-phase control winding groups are the control winding, every winding of controlling mutually all has two coils, mutually alternate of the same name group of coil joins end to end, group is series arm, article two, branch road parallel connection, its two place and tie-point link to each other with rectification and filter feedback output end e, f point respectively, get its induced potential a, b from two coil tap ends of directly connecting mutually, from another mutually not directly the tap of top up and down of two coils of series connection get its induced potential c, d, a, b, c, d point link to each other with rectifier transformer primary winding in rectification and the filter respectively.The controllable silicon part of rectification and filter links to each other with control unit 4.Checkout equipment 3 links to each other with transmission line, and its output links to each other with control unit.Control unit links to each other with reactor main body secondary singal terminal box lead-out terminal, and secondary singal comprises: current signal, temperature signal, light and heavy gas, pressure relief valve protection.Its holding wire links to each other with the terminal box input terminal.The iron core of the reactor main part in the present embodiment adopts the two return yoke formulas of three-phase three synthetic stem stems, and its iron core and coil assembly relation are as shown in figure 13.
Embodiment 7:
Be that two three-phase device bodies are formed three-phase integrated reactor, net side winding H as shown in figure 14
12, H
13Adopt parallel-connection structure, three-phase net side winding one end links to each other with three phase line respectively, and the other end links to each other with little reactor, little reactor other end ground connection.Three single-phase control winding groups are the control winding, every winding of controlling mutually all has two coils, mutually alternate of the same name group of coil joins end to end, group is series arm, article two, branch road parallel connection, its two place and tie-point link to each other with rectification and filter feedback output end e, f point respectively, get its induced potential a, b from two coil tap ends of directly connecting mutually, from another mutually not directly the tap of top up and down of two coils of series connection get its induced potential c, d, a, b, c, d point link to each other with rectifier transformer primary winding in rectification and the filter respectively.The controllable silicon part of rectification and filter links to each other with control unit 4.Checkout equipment 3 links to each other with transmission line, and its output links to each other with control unit.Control unit links to each other with reactor main body secondary singal terminal box lead-out terminal, and secondary singal comprises: current signal, temperature signal, light and heavy gas, pressure relief valve protection.Its holding wire links to each other with the terminal box input terminal.Two iron cores of the reactor main part in the present embodiment all adopt the two return yoke formulas of three-phase three-column, and its iron core and coil assembly relation are shown in Figure 15,16.
Embodiment 8:
Be that two three-phase device bodies are formed three-phase integrated reactor, net side winding H as shown in figure 17
12, H
13Adopt two coil cascaded structures, three-phase net side winding one end links to each other with three phase line respectively, and the other end links to each other with little reactor, little reactor other end ground connection.Three single-phase control winding groups are the control winding, every winding of controlling mutually all has two coils, mutually alternate of the same name group of coil joins end to end, group is series arm, article two, branch road parallel connection, its two place and tie-point link to each other with rectification and filter feedback output end e, f point respectively, get its induced potential a, b from two coil tap ends of directly connecting mutually, from another mutually not directly the tap of top up and down of two coils of series connection get its induced potential c, d, a, b, c, d point link to each other with rectifier transformer primary winding in rectification and the filter respectively.The controllable silicon part of rectification and filter links to each other with control unit 4.Checkout equipment 3 links to each other with transmission line, and its output links to each other with control unit.Control unit links to each other with reactor main body secondary singal terminal box lead-out terminal, and secondary singal comprises: current signal, temperature signal, light and heavy gas, pressure relief valve protection.Its holding wire links to each other with the terminal box input terminal.Two iron cores of the reactor main part in the present embodiment all adopt the two return yoke formulas of three-phase three-column, and its iron core and coil assembly relation are shown in Figure 18,19.