Energy storage equalization wind power generation control system

Abstract

The application discloses an energy storage balanced wind power generation control system and belongs to the technical field of energy storage power supply. The application is provided with an energy storage adjusting structure and a speed reduction structure. The energy storage adjusting structure comprises a transformer T. Adjustable slide rheostats are arranged between each phase input end of the transformer T and each phase output end of an alternator. The resistance values of the slide rheostats are automatically adjusted, and the voltage of each phase input end of the transformer T is automatically stabilized. The speed reduction structure comprises a cabin. A rotating shaft is arranged in the cabin. A blade is fixedly connected to one end of the rotating shaft. An alternator is fixedly connected to the other end of the rotating shaft. A rotating disc is fixedly connected to the surface of the rotating shaft. A rotating disc groove is arranged in the rotating disc. A heavy block is arranged in the rotating disc groove. An arc-shaped block is arranged on the surface of the heavy block. The arc-shaped block is in abutment with the inner wall of the cabin, so that the rotating speed of the rotating shaft and the blade is slowed down, the voltage generated by the alternator is more stable, and the voltage balance when the wind power generation is integrated into a municipal power grid is improved.

Description

TECHNICAL FIELD

[0001] The application is an energy storage balanced wind power generation control system, and belongs to the technical field of energy storage power supply. BACKGROUND

[0002] The working principle of a wind power generator is to use wind to drive the rotation of blades, and the rotation of the blades drives the rotation of the rotor in an alternating current generator to generate electricity. The wind power generator outputs alternating current. Because the wind speed is unstable, the wind power generator generally outputs 13-25V varying alternating current.

[0003] Because the alternating current generated by the wind power generator needs to be boosted by a transformer before being transmitted to a remote place through high-voltage grid connection, the value after the boost by the transformer will also increase by a multiple, so the voltage value after the boost by the transformer will also vary greatly. The existing alternating current generator does not have the function of automatic voltage stabilization. Moreover, when the power generated by the wind power generator is excessive and exceeds the rated power of the transformer, the excessive power cannot be automatically stored and is wasted.

[0004] Generally, the rotation speed of the blades is controlled by the wind speed. Because the wind speed is not controlled by humans, when the wind speed increases sharply, the rotation speed of the blades will also increase, and thus the rotation speed of the alternating current generator may also rapidly increase and may exceed the maximum rotation speed of the alternating current generator. Therefore, the alternating current voltage generated by the alternating current generator will also increase, and when the wind power is connected to the municipal network, a large voltage fluctuation will be generated, and sometimes the alternating current generator may be damaged. For this reason, some technicians in the field have developed an energy storage balanced wind power generation control system to overcome the problems in the above background technology. SUMMARY

[0005] The technical problem to be solved by the application is to provide an energy storage balanced wind power generation control system to overcome the above-mentioned problems. The application is provided with an energy storage adjusting structure and a speed reduction structure. The energy storage adjusting structure can automatically stabilize the voltage values before and after the transformer and automatically store the excessive power in the battery. The speed reduction structure can automatically reduce the excessively fast rotation speed of the blades, improve the voltage balance when the wind power is connected to the municipal power grid, and reduce the waste and consumption of power.

[0006] To solve the above technical problems, the application adopts the following technical solutions:

[0007] The energy storage balanced wind power generation control system comprises an energy storage adjusting structure and a speed reduction structure. The energy storage adjusting structure comprises a transformer T, and the transformer T comprises an input coil and an output coil.

[0008] The transformer T input coil one end is connected with the normally closed point NC2 of solid state relay K2, input coil other end is connected with input common terminal N1, the common terminal COM2 of solid state relay K2 is connected with the one end of slide rheostat R1, the other end of slide rheostat R1 is connected with alternator R phase, transformer T output coil one end is connected with municipal alternating current L1 phase, output coil other end is connected with municipal alternating current common terminal N2.

[0009] Further, the alternator R phase is connected with the negative electrode of diode D3 and the positive electrode of diode D4, the positive electrode of diode D3 is connected with the positive electrode of diode D1 and ground wire, the negative electrode of diode D1 is connected with the positive electrode of diode D2 and input common terminal N1, the negative electrode of diode D4 is connected with the negative electrode of diode D2, one end of capacitor C1, one end of resistor R3, negative electrode of voltage stabilizing diode D5 and negative electrode of voltage stabilizing diode D6, the other end of capacitor C1 is connected with ground wire, the other end of resistor R3 is connected with the 3 pin of chip U1 and one end of resistor R4, the other end of resistor R4 is connected with ground wire.

[0010] Further, the positive electrode of voltage stabilizing diode D5 is connected with one end of resistor R9 and the base of triode Q2, the other end of resistor R9 is connected with ground wire, the collector of triode Q2 is connected with power supply +24V, the emitter of triode Q2 is connected with one end of resistor R2 and the positive electrode of solid state relay K2 coil, the negative electrode of solid state relay K2 coil and the other end of resistor R2 are connected with ground wire, the negative electrode of voltage stabilizing diode D6 is connected with the positive electrode of current limiting diode D7, the positive electrode of battery DC is connected with the negative electrode of current limiting diode D7, the negative electrode of battery DC is connected with ground wire.

[0011] Further, the chip U1 is operational amplifier, the model of chip U1 is LF351, one end of resistor R7 is connected with the base of triode Q1, the other end of resistor R7 is connected with the base of triode Q1, the collector of triode Q1 is connected with power supply +24V, the emitter of triode Q1 is connected with one end of resistor R8 and the positive electrode of solid state relay K1 coil, the negative electrode of solid state relay K1 coil and the other end of resistor R8 are connected with ground wire.

[0012] Further, the 8 pin of chip U1 is connected with power supply +12V, the 4 pin of chip U1 is connected with ground wire, the 2 pin of chip U1 is connected with one end of resistor R5 and one end of resistor R6, the other end of resistor R5 is connected with power supply +24V, the other end of resistor R6 is connected with ground wire.

[0013] Further, the common terminal COM1 of solid state relay K1 is connected with power supply +24V, the normally closed point NC1 of solid state relay K1 is connected with the first hydraulic cylinder power DY1, the normally open point NO1 of solid state relay K1 is connected with the second hydraulic cylinder power DY2.

[0014] Further, the energy storage adjusting structure further comprises a cross plate, a sliding rail is arranged in the middle of the cross plate, a sliding block is arranged in the sliding rail, and the lower end of the sliding block is connected with the middle contact of the sliding rheostat R1.

[0015] Further, the cross plate is further provided with a first hydraulic cylinder and a second hydraulic cylinder at two ends, the first hydraulic cylinder is connected with one side of the sliding block, and the second hydraulic cylinder is connected with the other side of the sliding block.

[0016] Further, the speed reduction structure comprises a cabin, the cabin is cylindrical and hollow, a rotating shaft penetrates through the cabin, a blade is fixedly connected to one end of the rotating shaft, and an alternator rotor is connected to the other end of the rotating shaft.

[0017] Further, the surface of the rotating shaft is further fixedly connected with a rotating disc, the surface of the rotating disc is uniformly distributed with rotating disc grooves, a weight block and a reciprocating spring are arranged in the rotating disc grooves, an arc-shaped block is arranged on the surface of the weight block, the arc-shaped block is in an arc-shaped structure, and the weight block and the arc-shaped block are fixedly connected through a connecting rod.

[0018] Compared with the prior art, the above technical scheme has the following technical effects:

[0019] 1. In the energy storage adjusting structure, adjustable sliding rheostats are arranged between the input ends of each phase of the transformer T and the output ends of each phase of the alternator, the resistance value of the sliding rheostat is automatically adjusted, the voltage at the input end of each phase of the transformer T is automatically stabilized, the voltage value before and after the transformer T is kept stable, and the voltage balance when the wind power generation is connected to the municipal power grid is improved.

[0020] 2. The speed reduction structure is arranged, the speed reduction structure comprises a cabin, a rotating shaft is arranged in the cabin, a blade is fixedly connected to one end of the rotating shaft, an alternator is fixedly connected to the other end of the rotating shaft, a rotating disc is fixedly connected to the surface of the rotating shaft, rotating disc grooves are arranged in the rotating disc, a weight block is arranged in the rotating disc grooves, and an arc-shaped block is arranged on the surface of the weight block, when the rotating speed of the blade is too large, the weight block is subjected to a centripetal force, the arc-shaped block is abutted against the inner wall of the cabin, the rotating speed of the rotating shaft and the blade is slowed down, the voltage generated by the alternator is more stable, and the constancy of the power supply at the input end of the transformer T is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the specific embodiments or the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion and orientation.

[0022] Figure 1 Circuit principle of the energy storage adjusting structure of the present application Figure 1 ;

[0023] Figure 2 Circuit principle of energy storage regulating structure of the present application Figure 2 ;

[0024] Figure 3 Circuit principle of energy storage regulating structure of the present application Figure 3 ;

[0025] Figure 4 Front view sectional view of deceleration structure of the present application

[0026] Figure 5 Connection sectional view of rotating disc and rotating shaft structure in deceleration structure of the present application

[0027] Figure 2 、 Figure 4 With Figure 5 : 1 - engine room, 2 - rotating disc, 3 - heavy block, 4 - arc block, 5 - rotating shaft, 6 - reciprocating spring, 7 - first hydraulic cylinder, 8 - second hydraulic cylinder, 9 - cross plate, 10 - sliding block, 11 - alternator. DETAILED DESCRIPTION

[0028] The energy storage balancing wind power generation control system comprises an energy storage regulating structure and a deceleration structure.

[0029] As shown in Figure 1 、 Figure 2 and Figure 3 , the energy storage regulating structure comprises a transformer T, the transformer T has three phases, each phase comprises an input coil and an output coil, and only one phase is taken as an example below.

[0030] One end of the input coil of the transformer T is connected with a normally closed point NC2 of a solid-state relay K2, the other end of the input coil is connected with an input common end N1, one end of a slide rheostat R1 connected with a common end COM2 of the solid-state relay K2, the other end of the slide rheostat R1 is connected with an R phase of an alternator, one end of an output coil of the transformer T is connected with a municipal alternating current L1 phase, and the other end of the output coil is connected with a municipal alternating current common end N2.

[0031] The R phase of the alternator is connected with a negative electrode of a diode D3 and a positive electrode of a diode D4, the positive electrode of the diode D3 is connected with a positive electrode of a diode D1 and a ground wire, the negative electrode of the diode D1 is connected with a positive electrode of a diode D2 and the input common end N1, the negative electrode of the diode D4 is connected with a negative electrode of a diode D2, one end of a capacitor C1, one end of a resistor R3, a negative electrode of a voltage stabilizing diode D5 and a negative electrode of a voltage stabilizing diode D6, the other end of the capacitor C1 is connected with the ground wire, the other end of the resistor R3 is connected with a 3-pin of a chip U1 and one end of a resistor R4, and the other end of the resistor R4 is connected with the ground wire.

[0032] The positive electrode of the voltage stabilizing diode D5 is connected with one end of the resistor R9 and the base of the transistor Q2, the other end of the resistor R9 is connected with the ground wire, the collector of the transistor Q2 is connected with the power supply +24V, the emitter of the transistor Q2 is connected with one end of the resistor R2 and the positive electrode of the coil of the solid state relay K2, the negative electrode of the coil of the solid state relay K2 and the other end of the resistor R2 are connected with the ground wire, the negative electrode of the voltage stabilizing diode D6 is connected with the positive electrode of the current limiting diode D7, the negative electrode of the current limiting diode D7 is connected with the positive electrode of the battery DC, and the negative electrode of the battery DC is connected with the ground wire.

[0033] The chip U1 is an operational amplifier, the model of the chip U1 is LF351, one pin of the chip U1 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with the base of the transistor Q1, the collector of the transistor Q1 is connected with the power supply +24V, the emitter of the transistor Q1 is connected with one end of the resistor R8 and the positive electrode of the coil of the solid state relay K1, the negative electrode of the coil of the solid state relay K1 and the other end of the resistor R8 are connected with the ground wire.

[0034] The eight pin of the chip U1 is connected with the power supply +12V, the four pin of the chip U1 is connected with the ground wire, the two pin of the chip U1 is connected with one end of the resistor R5 and one end of the resistor R6, the other end of the resistor R5 is connected with the power supply +24V, and the other end of the resistor R6 is connected with the ground wire.

[0035] The common end COM1 of the solid state relay K1 is connected with the power supply +24V, the normally closed point NC1 of the solid state relay K1 is connected with the power supply DY1 of the first hydraulic cylinder, and the normally open point NO1 of the solid state relay K1 is connected with the power supply DY2 of the second hydraulic cylinder.

[0036] The energy storage adjusting structure further comprises a horizontal plate 9, a sliding rail is arranged in the middle of the horizontal plate 9, a sliding block 10 is arranged in the sliding rail, the lower end of the sliding block 10 is connected with the middle contact of the sliding resistor R1, the first hydraulic cylinder 7 and the second hydraulic cylinder 8 are further arranged at the two ends of the horizontal plate 9, the first hydraulic cylinder 7 is connected with one side of the sliding block 10, and the second hydraulic cylinder 8 is connected with the other side of the sliding block 10.

[0037] The rectifier bridge composed of diode D1 to diode D4 integrates to form a direct current voltage, which flows into the ground via resistor R3 and resistor R4, the 3-pin of chip U1 collects the voltage between resistor R3 and R4, the 2-pin of chip U1 collects the voltage between resistor R5 and R6, when the wind speed is small, the integrated direct current voltage is also small, the voltage of the 3-pin of chip U1 is smaller than the voltage of the 2-pin of chip U1, chip U1 is not conductive, that is, the 1-pin of chip U1 outputs low level, triode Q1 is not conductive, the common end COM1 of solid state relay K1 is conductive with the normally closed point NC1 of solid state relay, the power supply of the first hydraulic cylinder is turned on, the power supply of the second hydraulic cylinder is turned off, the middle contact of sliding rheostat R1 is driven to move away from the transformer T side, the resistance between the R phase of alternator and the transformer T becomes smaller, thus, the voltage distributed at the input end of transformer T becomes larger.

[0038] With the increase of wind speed, the integrated direct current voltage also increases, the voltage of the 3-pin of chip U1 gradually increases, when the voltage of the 3-pin of chip U1 is greater than the voltage of the 2-pin of chip U1, chip U1 is conductive, that is, the 1-pin of chip U1 outputs high level, triode Q1 is conductive, the common end COM1 of solid state relay K1 is conductive with the normally open point NO1 of solid state relay, the power supply of the second hydraulic cylinder is turned on, the power supply of the first hydraulic cylinder is turned off, the middle contact of sliding rheostat R1 is driven to move close to the transformer T side, the resistance between the R phase of alternator and the transformer T becomes larger, thus, the voltage distributed at the input end of transformer T becomes smaller, according to the above working principle, the voltage at the input end of transformer T can be a constant value according to the size of wind speed.

[0039] When the wind speed suddenly increases, the integrated direct current voltage also suddenly increases, the zener diode D5 and the zener diode D6 are broken down, the base of triode Q2 is electrified and conductive, the solid state relay K2 is conductive, the normally closed point NC2 of solid state relay K2 is disconnected with the common end COM2 of solid state relay K2, so that the input end of transformer T is disconnected with the R phase of alternator, to prevent the voltage at the input end of transformer T from being too large to damage the transformer T, then, the electricity of the R phase of alternator is stored in the storage battery DC through the zener diode D6 and the current limiting diode D7, to prevent the waste of electric energy.

[0040] As shown in Figure 4 and Figure 5 The speed reduction structure includes a cabin 1, the cabin 1 is cylindrical and hollow inside, a rotating shaft 5 penetrates through the cabin 1, a blade is fixedly connected to one end of the rotating shaft 5, and an alternator 11 rotor is connected to the other end of the rotating shaft 5.

[0041] The rotating shaft 5 surface is also fixed with a rotating disc 2, the rotating disc 2 surface is uniformly distributed with rotating disc grooves, the rotating disc grooves are equipped with weight blocks 3 and reciprocating springs 6, the weight block 3 surface is also equipped with arc blocks 4, the arc blocks 4 are arc structures, the weight block 3 and the arc block 4 are fixed through connecting rods.

[0042] The blades rotate with the wind, the rotating shaft 5 and the rotating disc 2 also follow the rotation, the rotating shaft 5 drives the AC generator 11 rotor to rotate to generate electricity, while the rotating disc 2 rotates, the weight block 3 is subjected to centripetal force, the weight block 3 and the arc block 4 fixed in phase move to the far centripetal end away from the rotating disc 2, that is, move towards the cabin 1 inner wall, pull the reciprocating spring 6 to deform, and abut against the cabin 1 inner wall, the friction between the arc block 4 and the cabin 1 inner wall promotes the rotating shaft 5 and the blade speed to slow down, and the reciprocating spring 6 plays a buffering role in the rotating disc groove.

[0043] The description of the present application is given for example and description, and is not exhaustive or limits the present application to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the present application, and to enable those skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A control system for balancing energy storage and wind power generation, characterized by: It comprises an energy storage adjusting structure and a deceleration structure; the energy storage adjusting structure comprises a transformer T, which comprises an input coil and an output coil; One end of the input coil of the transformer T is connected with a normally closed point NC2 of a solid-state relay K2, the other end of the input coil is connected with an input common terminal N1, one end of a slide rheostat R1 is connected with a common terminal COM2 of the solid-state relay K2, the other end of the slide rheostat R1 is connected with an R-phase of an alternator, one end of an output coil of the transformer T is connected with an L1-phase of a municipal alternating current, and the other end of the output coil is connected with a municipal alternating current common terminal N2; The R-phase of the alternator is connected with a negative electrode of a diode D3 and a positive electrode of a diode D4, the positive electrode of the diode D3 is connected with a positive electrode of a diode D1 and a ground wire, the negative electrode of the diode D1 is connected with a positive electrode of a diode D2 and the input common terminal N1, the negative electrode of the diode D4 is connected with a negative electrode of the diode D2, one end of a capacitor C1, one end of a resistor R3, a negative electrode of a voltage stabilizing diode D5 and a negative electrode of a voltage stabilizing diode D6, the other end of the capacitor C1 is connected with the ground wire, the other end of the resistor R3 is connected with a 3-pin of a chip U1 and one end of a resistor R4, the other end of the resistor R4 is connected with the ground wire. The chip U1 is an operational amplifier, the model of the chip U1 is LF351, one end of a resistor R7 is connected with a 1-pin of the chip U1, the other end of the resistor R7 is connected with a base of a triode Q1, a collector of the triode Q1 is connected with a power supply +24V, an emitter of the triode Q1 is connected with one end of a resistor R8 and a positive electrode of a coil of a solid-state relay K1, a negative electrode of the coil of the solid-state relay K1 and the other end of the resistor R8 are connected with the ground wire. An 8-pin of the chip U1 is connected with a power supply +12V, a 4-pin of the chip U1 is connected with the ground wire, one end of a resistor R5 and one end of a resistor R6 are connected with a 2-pin of the chip U1, the other end of the resistor R5 is connected with the power supply +24V, and the other end of the resistor R6 is connected with the ground wire. A common terminal COM1 of the solid-state relay K1 is connected with the power supply +24V, a normally closed point NC1 of the solid-state relay K1 is connected with a first hydraulic cylinder power supply DY1, and a normally open point NO1 of the solid-state relay K1 is connected with a second hydraulic cylinder power supply DY2. The energy storage adjusting structure further comprises a horizontal plate (9), a slide rail is arranged in the middle of the horizontal plate (9), a sliding block (10) is arranged in the slide rail, and a lower end of the sliding block (10) is connected with a middle contact of the slide rheostat R1. First and second hydraulic cylinders (7) and (8) are further arranged at two ends of the horizontal plate (9), the first hydraulic cylinder (7) is connected with one side of the sliding block (10), and the second hydraulic cylinder (8) is connected with the other side of the sliding block (10).

2. The energy storage equalization wind power generation control system of claim 1, wherein: A positive electrode of a voltage stabilizing diode D5 is connected with one end of a resistor R9 and a base of a triode Q2, the other end of the resistor R9 is connected with the ground wire, a collector of the triode Q2 is connected with the power supply +24V, an emitter of the triode Q2 is connected with one end of a resistor R2 and a positive electrode of a coil of a solid-state relay K2, a negative electrode of the coil of the solid-state relay K2 and the other end of the resistor R2 are connected with the ground wire, a negative electrode of a current-limiting diode D7 is connected with a positive electrode of a battery pack DC, and a negative electrode of the battery pack DC is connected with the ground wire.

3. The energy storage equalization wind power generation control system of claim 1, wherein: The deceleration structure comprises a cabin (1), the cabin (1) is cylindrical and internally hollow, a rotating shaft (5) is through in the cabin (1), the rotating shaft (5) is fixedly connected with a blade at one end, and the rotating shaft (5) is connected with an alternator (11) rotor at the other end.

4. The energy storage equalization wind power generation control system of claim 3, wherein: The rotating shaft (5) is further fixedly connected with a rotating disc (2), the rotating disc (2) is uniformly distributed with rotating disc grooves, the rotating disc grooves are provided with weight blocks (3) and reciprocating springs (6), the weight blocks (3) are further provided with arc blocks (4), the arc blocks (4) are arc-shaped structures, and the weight blocks (3) and the arc blocks (4) are fixedly connected through connecting rods.

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