CN215580402U - Application device for multi-energy complementation of heat pump and photovoltaic or wind power energy - Google Patents
Application device for multi-energy complementation of heat pump and photovoltaic or wind power energy Download PDFInfo
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- CN215580402U CN215580402U CN202121806104.3U CN202121806104U CN215580402U CN 215580402 U CN215580402 U CN 215580402U CN 202121806104 U CN202121806104 U CN 202121806104U CN 215580402 U CN215580402 U CN 215580402U
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Abstract
The utility model provides an application device for multi-energy complementation of a heat pump and photovoltaic or wind power energy, which comprises: the three-phase rectification and voltage reducing device comprises a three-phase rectification and voltage reducing device, a three-phase variable frequency compressor driver, a direct current variable frequency fan driver, a main control board and a line controller, wherein the main control board is respectively electrically connected with the line controller, the direct current variable frequency fan driver and the three-phase variable frequency compressor driver, the three-phase rectification and voltage reducing device is electrically connected with the three-phase variable frequency compressor driver, a three-phase variable frequency drive circuit is installed in the three-phase variable frequency compressor driver, and a commercial power three-phase power supply rectification circuit is installed in the three-phase rectification and voltage reducing device. The application device for the heat pump and the photovoltaic or wind power energy multi-energy complementation is simple in structure and high in safety, and through the structural design of the three-phase variable frequency driving circuit and the commercial power three-phase power supply rectifying circuit, the multi-energy complementation automatic switching between the photovoltaic or wind power energy can be realized, and the energy utilization rate is improved.
Description
Technical Field
The utility model relates to an energy complementary application device, in particular to an application device for multi-energy complementation of a heat pump and photovoltaic or wind power energy.
Background
The traditional variable frequency heat pump unit utilizes 220V or 380V AC power supply to a main control panel and a variable frequency driving module to control the operation of a compressor and an outdoor fan, and achieves the heating or refrigerating effect through the Carnot cycle principle, but the whole energy consumption is high. With PV/T (photovoltaic/photothermal) integrated systems getting more and more attention from scholars due to their higher integrated solar energy utilization efficiency. Since the simple water-cooled PV/T cannot secure the heating water temperature, a solar heat pump system is born. The solar heat pump hot water system is divided into a direct expansion type and an indirect type. The photovoltaic solar heat pump is characterized in that a photovoltaic component is added on a solar heat collecting plate on the basis of a direct expansion type solar heat pump. However, the existing heat pump electric energy conversion and management system has a complex structure and low reliability, can not be compatible with simultaneous input and output of alternating current and direct current, and can not realize multi-energy complementary automatic switching between photovoltaic or peak power energy sources, so that the energy utilization rate is low.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the application device for the multi-energy complementation of the heat pump and the photovoltaic or wind power energy, which has the advantages of simple structure and high safety, can realize the multi-energy complementation automatic switching between the photovoltaic or peak power energy, and improves the energy utilization rate.
In order to realize the technical scheme, the utility model provides an application device for realizing the multi-energy complementation of a heat pump and photovoltaic or wind power energy, which comprises: the three-phase inverter comprises a three-phase rectifying and voltage reducing device, a three-phase inverter compressor driver, a direct-current inverter fan driver, a main control board and a line controller, wherein the main control board is respectively electrically connected with the line controller, the direct-current inverter fan driver and the three-phase inverter compressor driver, the three-phase rectifying and voltage reducing device is electrically connected with the three-phase inverter compressor driver, a three-phase inverter driving circuit is installed in the three-phase inverter compressor driver and comprises a photovoltaic inverter, diodes D11, D12, D13, D14, D15, D16, a reactor L2, capacitors C1, C2, C3 and IPM, the diodes D11 and D14, the diodes D13 and D16, the D15 and D12 are connected in series and then connected in parallel to form a three-phase bridge rectifier stack, the R, S, T phase of the photovoltaic inverter is connected with the three-phase bridge rectifier stack at a phase difference of 120 degrees, and the capacitors C1, C2, C35 and D9, C3 is connected in parallel at the rear end of the three-phase bridge rectifier stack and is connected with the IPM, and a reactor L2 is connected in series between the positive output line of the three-phase bridge rectifier stack and the positive electrode of the capacitor C1; the three-phase rectification and voltage dropping device is internally provided with a mains supply three-phase power supply rectification circuit, the mains supply three-phase power supply rectification circuit comprises diodes D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 and a reactor L1, wherein the diodes D1 and D4, D3 and D6, and D5 and D2 are connected in series and then connected in parallel to form a three-phase bridge rectification stack, the R, S, T phase of the mains supply three-phase alternating current power supply is connected with the three-phase bridge rectification stack in a 120-degree phase difference manner, the reactor L1 and the diodes D7, D8, D9 and D10 are connected in series to the positive output line of the three-phase bridge rectification stack, and the positive output end and the negative output end of the three-phase bridge rectification stack are respectively connected with the positive electrode and the negative electrode of an IPM in the three-phase variable frequency compressor driver.
Preferably, every two diodes in the bridge rectifier stack in the commercial power three-phase power supply rectification circuit are pulse switches in the same group, the pulse difference between the diodes in the same group is 120 degrees, and the difference between the common anode diode and the common cathode diode is 60 degrees.
Preferably, the forward voltage of each diode in the three-phase mains supply rectification circuit is 537V, and the rectified dc voltage is 537V.
Preferably, the photovoltaic inverter stably outputs AC380V when the alternating-current three-phase voltage is stable, the bridge rectifier stack of the three-phase variable-frequency driver stably outputs DC537V, and stable 537V direct current is continuously supplied to the IPM after harmonic filtering of a reactor L2 and electrolysis of a capacitor C1-C3.
Preferably, the grid-connected alternating current commercial power AC380V is rectified by a three-phase bridge rectifier stack composed of diodes D1-D6, continuously outputs 537V direct current, is subjected to harmonic filtering by a reactor L1, reduces the output voltage by 4-6V through series diodes D7-D10, finally outputs the voltage on the IPM direct current bus lower than the direct current voltage rectified by the photovoltaic inverter by 4-6V, if the alternating current voltage of the photovoltaic inverter is stable and does not reduce, the variable frequency driver preferentially uses the power supply of the photovoltaic inverter all the time, and when the output voltage of the photovoltaic inverter reduces, the IPM is driven by the direct current power supply rectified by the commercial power.
Preferably, the IPM is electrically connected to the dc inverter compressor and the dc fan.
The application device for the heat pump and photovoltaic or wind power energy source multi-energy complementation, provided by the utility model, has the beneficial effects that:
1) the heat pump and photovoltaic or wind power energy multi-energy complementary application device is simple in structure, multi-energy complementary automatic switching between photovoltaic or peak power energy can be achieved through the structural design of the three-phase frequency conversion driving circuit and the commercial power three-phase power supply rectifying circuit, if the alternating voltage of the photovoltaic inverter is stable and does not drop, the frequency conversion driver can preferentially use the power supply of the photovoltaic inverter all the time, when the output voltage of the photovoltaic inverter drops, the direct-current power supply rectified by commercial power is used as the driving power supply, and the energy utilization rate is improved.
2) The application device of the heat pump and the photovoltaic or wind power energy multi-energy complementation can convert an alternating current power supply into a direct current power supply and can be compatible with the input and the output of alternating current and direct current at the same time by the structural design of the three-phase frequency conversion driving circuit and the commercial power three-phase power supply rectifying circuit.
Drawings
Fig. 1 is a circuit diagram of the present invention.
FIG. 2 is a diagram of a hardware system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example (b): an application device for multi-energy complementation of a heat pump and photovoltaic or wind power energy.
Referring to fig. 1 and 2, an application device of a heat pump for realizing multi-energy complementation with photovoltaic or wind power energy comprises: the three-phase rectification and voltage reducing device comprises a three-phase rectification and voltage reducing device 4, a three-phase variable frequency compressor driver 3, a direct current variable frequency fan driver 5, a main control board 1 and a line controller 2, wherein the main control board 1 is respectively electrically connected with the line controller 2, the direct current variable frequency fan driver 5 and the three-phase variable frequency compressor driver 3, the three-phase rectification and voltage reducing device 4 is electrically connected with the three-phase variable frequency compressor driver 3, the three-phase variable frequency compressor driver 3 is electrically connected with the direct current variable frequency compressor, the direct current variable frequency fan driver 5 is electrically connected with the direct current fan, a temperature protection switch 6 and a temperature sensor 7 are installed on the main control board 1, and meanwhile, the main control board 1 is also respectively electrically connected with an electric heater 8, a four-way valve 9 and a water pump 10.
Referring to fig. 1, a three-phase inverter drive circuit is installed in the three-phase inverter compressor driver 3, and the three-phase inverter drive circuit includes a photovoltaic inverter, diodes D11, D12, D13, D14, D15, D16, a reactor L2, capacitors C1, C2, C3 and IPM, wherein the diodes D11 and D14, D13 and D16, and D15 and D12 are connected in series and then connected in parallel to form a three-phase bridge rectifier stack, R, S, T phases of a three-phase ac power source of the photovoltaic inverter are connected with the three-phase bridge rectifier stack with a phase difference of 120 degrees, the capacitors C1, C2 and C3 are connected in parallel to the rear end of the three-phase bridge rectifier stack and connected with the IPM, the IPM is electrically connected with the dc inverter compressor and the dc fan, and the L2 is connected in series between an anode output line of the three-phase bridge rectifier stack and an anode of the capacitor C1; during actual work, the photovoltaic inverter stably outputs AC380V when alternating current three-phase voltage is stable, a bridge rectifier stack of the three-phase variable frequency driver stably outputs DC537V, and stable 537V direct current is continuously supplied to the IPM after harmonic filtering of a reactor L2 and electrolysis of a capacitor C1-C3.
The three-phase rectifying and voltage reducing device is internally provided with a commercial power three-phase power supply rectifying circuit, the commercial power three-phase power supply rectifying circuit comprises diodes D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 and a reactor L1, wherein diodes D1 and D4, D3 and D6, and D5 and D2 are connected in series and then connected in parallel to form a three-phase bridge rectifying stack, R, S, T phases of the commercial power three-phase alternating current power supply are connected with the three-phase bridge rectifying stack at a phase difference of 120 degrees, the reactor L1 and the diodes D7, D8, D9 and D10 are connected in series on an anode output line of the three-phase bridge rectifying stack, an anode output end and a cathode output end of the three-phase bridge rectifying stack are respectively connected with an anode and a cathode of an IPM in the three-phase variable frequency compressor, each two diodes in the bridge rectifying stack in the commercial power supply rectifying circuit are pulse switches in the same group, the same group are 120 degrees, and the difference between the anode and the cathode of 60 degrees is 60 degrees, the forward voltage of each diode is 537V, and the rectified direct current voltage is 537V.
During actual work, after grid-connected alternating current commercial power AC380V is rectified by a three-phase bridge rectifier stack composed of diodes D1-D6, 537V direct current is continuously output, after harmonic filtering is performed by a reactor L1, output voltage is reduced by 4-6V through series diodes D7-D10, finally voltage output to an IPM direct current bus is 4-6V lower than direct current voltage rectified by a photovoltaic inverter, if alternating current voltage of the photovoltaic inverter is stable and does not drop, a variable frequency driver can preferentially use power of the photovoltaic inverter all the time, when the output voltage of the photovoltaic inverter drops, the IPM is driven by the direct current power rectified by the commercial power, a direct current variable frequency compressor and a direct current fan are further driven, and energy utilization rate is improved.
The heat pump and photovoltaic or wind power energy multi-energy complementary application device is simple in structure, multi-energy complementary automatic switching between photovoltaic or peak power energy can be achieved through the structural design of the three-phase frequency conversion driving circuit and the commercial power three-phase power supply rectifying circuit, if the alternating voltage of the photovoltaic inverter is stable and does not drop, the frequency conversion driver can preferentially use the power supply of the photovoltaic inverter all the time, when the output voltage of the photovoltaic inverter drops, the direct-current power supply rectified by commercial power is used as the driving power supply, and the energy utilization rate is improved. In addition, through the structural design to three-phase variable frequency drive circuit and commercial power three-phase power supply rectifier circuit, can realize changing alternating current power supply into DC power supply, input and output when can compatible interchange and direct current.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (6)
1. An application device of heat pump and photovoltaic or wind power energy source with multi-energy complementation, comprising: the three-phase inverter comprises a three-phase rectifying and voltage reducing device, a three-phase variable frequency compressor driver, a direct current variable frequency fan driver, a main control board and a line controller, wherein the main control board is respectively electrically connected with the line controller, the direct current variable frequency fan driver and the three-phase variable frequency compressor driver, and the three-phase rectifying and voltage reducing device is electrically connected with the three-phase variable frequency compressor driver C2 and C3 are connected in parallel at the rear end of the three-phase bridge rectifier stack and are connected with the IPM, and a reactor L2 is connected in series between the positive output line of the three-phase bridge rectifier stack and the positive electrode of the capacitor C1; the three-phase rectification and voltage dropping device is internally provided with a mains supply three-phase power supply rectification circuit, the mains supply three-phase power supply rectification circuit comprises diodes D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 and a reactor L1, wherein the diodes D1 and D4, D3 and D6, and D5 and D2 are connected in series and then connected in parallel to form a three-phase bridge rectification stack, the R, S, T phase of the mains supply three-phase alternating current power supply is connected with the three-phase bridge rectification stack in a 120-degree phase difference manner, the reactor L1 and the diodes D7, D8, D9 and D10 are connected in series to the positive output line of the three-phase bridge rectification stack, and the positive output end and the negative output end of the three-phase bridge rectification stack are respectively connected with the positive electrode and the negative electrode of an IPM in the three-phase variable frequency compressor driver.
2. The device for the multi-energy complementary application of a heat pump to photovoltaic or wind-power energy sources according to claim 1, characterized in that: every two diodes in a bridge rectifier stack in the commercial power three-phase power supply rectification circuit are pulse switches in the same group, the pulse mutual difference between the diodes in the same group is 120 degrees, and the difference between a common anode diode and a common cathode diode is 60 degrees.
3. The device for the multi-energy complementary application of a heat pump to photovoltaic or wind-electric energy according to claim 2, characterized in that: the forward voltage of each diode in the commercial power three-phase power supply rectification circuit is 537V, and the rectified direct-current voltage is 537V.
4. The device for the multi-energy complementary application of a heat pump to photovoltaic or wind-power energy sources according to claim 1, characterized in that: when the alternating current three-phase voltage of the photovoltaic inverter is stable, AC380V is stably output, a bridge rectifier stack of the three-phase variable frequency driver stably outputs DC537V, and stable 537V direct current is continuously supplied to the IPM after harmonic filtering of a reactor L2 and electrolysis of a capacitor C1-C3.
5. The device for the multi-energy complementary application of a heat pump to photovoltaic or wind-power energy sources according to claim 1, characterized in that: the grid-connected alternating current commercial power AC380V is rectified by a three-phase bridge rectifier stack consisting of diodes D1-D6, continuously outputs 537V direct current, is subjected to harmonic filtering by a reactor L1, reduces the output voltage by 4-6V through series diodes D7-D10, finally outputs the voltage to the IPM direct current bus lower than the direct current voltage rectified by the photovoltaic inverter by 4-6V, if the alternating current voltage of the photovoltaic inverter is stable and does not drop, the variable frequency driver preferentially uses the power supply of the photovoltaic inverter all the time, and when the output voltage of the photovoltaic inverter drops, the IPM is driven by the direct current power supply rectified by the commercial power.
6. The device for the multi-energy complementary application of a heat pump to photovoltaic or wind-power energy sources according to claim 1, characterized in that: the IPM is electrically connected with the direct current variable frequency compressor and the direct current fan.
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| CN202121806104.3U CN215580402U (en) | 2021-08-04 | 2021-08-04 | Application device for multi-energy complementation of heat pump and photovoltaic or wind power energy |
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| CN202121806104.3U CN215580402U (en) | 2021-08-04 | 2021-08-04 | Application device for multi-energy complementation of heat pump and photovoltaic or wind power energy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113422389A (en) * | 2021-08-04 | 2021-09-21 | 广州哈思新能源科技有限公司 | Application device for multi-energy complementation of heat pump and photovoltaic or wind power energy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113422389A (en) * | 2021-08-04 | 2021-09-21 | 广州哈思新能源科技有限公司 | Application device for multi-energy complementation of heat pump and photovoltaic or wind power energy |
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