阅读说明：本技术 微型水力余压发电装置 (Miniature hydraulic residual pressure generating device ) 是由 王成亮 王广明 魏江 王凯 刘方方 杨振辉 于 2020-04-16 设计创作，主要内容包括：本发明涉及一种微型水力余压发电装置,其包括供水主管和管道式水轮机,所述供水主管的供水阀门的进水端和出水端分别通过旁路进水管、进水阀门和旁路出水管、出水阀门连接管道式水轮机的进水口和出水口,所述管道式水轮机的发电机通过自适应控制调节器接入电网。本发明能够保证在任意流量、任意落差、任意频率、任意相位、任意电压下,成功并网发电,损耗极低。(The invention relates to a micro hydraulic residual pressure power generation device which comprises a main water supply pipe and a pipeline type water turbine, wherein the water inlet end and the water outlet end of a water supply valve of the main water supply pipe are respectively connected with the water inlet and the water outlet of the pipeline type water turbine through a bypass water inlet pipe, a water inlet valve, a bypass water outlet pipe and a water outlet valve, and a generator of the pipeline type water turbine is connected into a power grid through an adaptive control regulator. The invention can ensure that the grid-connected power generation is successfully carried out under any flow, any fall, any frequency, any phase and any voltage, and the loss is extremely low.)

1. The utility model provides a miniature water conservancy residual pressure power generation facility which characterized in that: the water supply system comprises a water supply main pipe and a pipeline type water turbine, wherein the water inlet end and the water outlet end of a water supply valve of the water supply main pipe are respectively connected with the water inlet and the water outlet of the pipeline type water turbine through a bypass water inlet pipe, a water inlet valve, a bypass water outlet pipe and a water outlet valve, and a generator of the pipeline type water turbine is connected into a power grid through a self-adaptive control regulator.

2. The miniature hydraulic residual pressure power generation device according to claim 1, wherein: a three-phase bridge feedback/rectification IGBT loop is connected between the generator and the power grid, the three-phase bridge feedback/rectification IGBT loop is connected to a capacitor of the direct-current bus, and the self-adaptive control regulator is connected to the direct-current bus.

3. The miniature hydraulic residual pressure power generation device according to claim 1, wherein: the self-adaptive control regulator comprises a power panel, a main control unit connected with the power panel, a wave sending plate connected with the main control unit, a parameter regulating system and a fuzzy controller, wherein the fuzzy controller is connected with the wave sending plate, and the wave sending plate is connected with the parameter regulating system.

4. The miniature hydraulic residual pressure power generation device according to claim 3, wherein: the wave generating plate is internally provided with a sampling unit, the sampling unit samples the current and the voltage of the power grid side and samples the current and the voltage of the load motor side, and the sampling unit is connected with a fuzzy controller.

5. The miniature hydraulic residual pressure power generation device according to claim 4, wherein: the sampling unit is also connected with a direct-current voltage sampling plate, and the direct-current voltage sampling plate is connected with a direct-current bus.

6. The miniature hydraulic residual pressure power generation device according to claim 4, wherein: the sampling unit is also connected with a protection circuit in the wave-transmitting plate and is in communication connection with the main control unit.

7. The miniature hydraulic residual pressure power generation device according to claim 3, wherein: the parameter adjusting system is connected with a driving unit for driving the generator, a protection circuit is arranged in the driving unit, and the protection circuit is connected with a photoelectric coupler.

8. The miniature hydraulic residual pressure power generation device according to claim 7, wherein: the parameter adjusting system also comprises an analog quantity/digital quantity control board and an isolation synchronous detection operation circuit, wherein the analog quantity/digital quantity control board is connected with the protection circuit of the driving unit, and the analog quantity/digital quantity control board is connected with the isolation synchronous detection operation circuit.

9. The micro hydraulic residual pressure power generation device according to any one of claims 3 to 8, characterized in that: the main control unit is further connected with a communication board, and the communication board is connected with an electric state operation display screen and a power generation state operation display screen.

Technical Field

The invention relates to the technical field of hydraulic excess pressure power generation, in particular to a miniature hydraulic excess pressure power generation device.

Background

As is known, electric energy is an important secondary energy source, and is applied to various aspects of modern society, hydroelectric power generation is the cleanest energy source, China is a big power generation country, 80 percent of China is thermal power generation, and the thermal power generation burns a large amount of coal and petroleum every day and pollutes the environment. At present, the situation of energy is severe, especially the world energy crisis, the situation of electric energy relying on primary energy such as coal, petroleum and the like is at risk, and the electricity is seriously in shortage. Therefore, reasonable power utilization, electricity saving and the conversion of some waste and idle energy into electric energy have become important in energy saving and consumption reduction.

In mines and metallurgical enterprises, the water consumption is generally large. In addition, most enterprises have a large natural fall between the water source and the water using link, or the pressure of the water pipeline is too high, and the pressure reduction link wastes the redundant energy. Therefore, the existing water energy utilization link has larger energy sources to be idle and has a large recycling space.

At present, the development of large and medium-sized hydraulic resources is almost exhausted in China, as in western developed countries. Thus, micro hydraulic residual pressure power generation has been identified as one of the important ways to develop and utilize clean renewable energy in the future. Therefore, a popular route for generating electricity by using "micro hydropower" with an installed capacity of 1 to 500KW using an existing available water route has been proposed in japan, germany, and the like, and micro hydropower equipment is installed on an existing water delivery pipeline to recycle excess water pressure energy in the pipeline.

Most hydroelectric equipment of hydroelectric generating set manufacturers are directly purchased on the market for excess pressure power generation and energy conservation, the reason is that the use scene, water diversion and drainage mode, power generation requirement, operation management and the like of a hydropower station are different from the requirements of factory production and energy conservation, the hydropower station equipment is directly applied to industrial backwater energy conservation, the requirements are not matched and coordinated with factory production, the hydropower station equipment is also a place with a great amount of water pressure, water head and flow and huge power generation potential, although the hydroelectric generating set is installed, the generated energy is far away from the expected generated energy, and the hydroelectric generating set can only be abandoned and stopped in some cases. Most of the devices can not meet the safety or technical requirements of the system and are forced to be dismantled.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the miniature hydraulic excess pressure power generation device which can ensure that the power can be successfully combined with the grid for power generation under any flow, any fall, any frequency, any phase and any voltage and has extremely low loss.

The technical scheme adopted by the invention for solving the technical problems is as follows: the miniature hydraulic residual pressure power generation device comprises a water supply main pipe and a pipeline type water turbine, wherein the water inlet end and the water outlet end of a water supply valve of the water supply main pipe are respectively connected with the water inlet and the water outlet of the pipeline type water turbine through a bypass water inlet pipe, a water inlet valve, a bypass water outlet pipe and a water outlet valve, and a power generator of the pipeline type water turbine is connected into a power grid through a self-adaptive control regulator.

In a preferred embodiment of the micro hydraulic residual voltage power generation device provided by the invention, a three-phase bridge feedback/rectification IGBT loop is connected between the generator and the power grid, the three-phase bridge feedback/rectification IGBT loop is connected to a capacitor of the direct current bus, and the adaptive control regulator is connected to the direct current bus.

In a preferred embodiment of the micro hydraulic excess pressure power generation device provided by the invention, the adaptive control regulator comprises a power panel, a main control unit connected with the power panel, a wave generating plate connected with the main control unit, a parameter adjusting system and a fuzzy controller, wherein the fuzzy controller is connected with the wave generating plate, and the wave generating plate is connected with the parameter adjusting system.

In a preferred embodiment of the micro hydraulic residual pressure power generation device provided by the invention, a sampling unit is arranged in the wave generating plate, the sampling unit is used for sampling current and voltage on a power grid side and sampling current and voltage on a load motor side, and the sampling unit is connected with a fuzzy controller.

In a preferred embodiment of the micro hydraulic residual pressure power generation device provided by the invention, the sampling unit is further connected with a direct current voltage sampling plate, and the direct current voltage sampling plate is connected with a direct current bus.

In a preferred embodiment of the micro hydraulic residual pressure power generation device provided by the invention, the sampling unit is further connected with a protection circuit in the wave generating plate and is in communication connection with the main control unit.

In a preferred embodiment of the micro hydraulic residual pressure power generation device provided by the invention, the parameter adjusting system is connected with a driving unit for driving the generator, a protection circuit is arranged in the driving unit, and the protection circuit is connected with a photoelectric coupler.

In a preferred embodiment of the micro hydraulic residual pressure power generation device provided by the invention, the parameter adjusting system further comprises an analog quantity/digital quantity control board and an isolation synchronous detection operation circuit, the analog quantity/digital quantity control board is connected with the protection circuit of the driving unit, and the analog quantity/digital quantity control board is connected with the isolation synchronous detection operation circuit.

In a preferred embodiment of the micro hydraulic residual pressure power generation device provided by the invention, the main control unit is further connected with a communication board, and the communication board is connected with the electric state operation display screen and the power generation state operation display screen.

Compared with the prior art, the miniature hydraulic residual pressure power generation device provided by the invention has the beneficial effects that:

according to the invention, the residual pressure generator set is designed into a bypass structure connected in parallel with the water supply main pipe, water supply can be regulated and controlled according to system requirements, and the problem of potential safety hazard to a circulating water system when a water turbine fails in a mode of directly designing and installing the generator set to replace a pressure reducing valve at a pressure reducing section with overhigh pressure of a water pipeline is solved;

the water turbine is controlled by the self-adaptive control regulator, the advanced water turbine control technology and the unique power generation control technology are adopted, the power generation capacity can be automatically adjusted according to water pressure and water flow, the successful grid-connected power generation can be ensured under any flow, any fall, any frequency, any phase and any voltage, and the loss is extremely low;

and thirdly, the self-adaptive control regulator can also monitor parameters such as voltage, current, frequency, power, generated energy and the like in real time, can automatically run in a grid-connected mode, has a perfect control protection function and realizes unattended operation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural diagram of a micro hydraulic residual pressure power generation device provided by the invention;

fig. 2 is a wiring diagram of the hydraulic generator connected to the power grid;

FIG. 3 is an access circuit diagram of a three-phase bridge feedback/rectifying IGBT loop;

FIG. 4 is a wiring and schematic diagram of the adaptive control regulator;

FIG. 5 is a wiring diagram of the sampling unit;

fig. 6 is a wiring diagram of the communication board;

FIG. 7 is a digital quantity board wiring diagram of an analog quantity/digital quantity control board;

fig. 8 is an analog quantity board wiring diagram of the analog quantity/digital quantity control board.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.