CN201623501U - Photovoltaic feedback inverter control system - Google Patents
Photovoltaic feedback inverter control system Download PDFInfo
- Publication number
- CN201623501U CN201623501U CN2010201358675U CN201020135867U CN201623501U CN 201623501 U CN201623501 U CN 201623501U CN 2010201358675 U CN2010201358675 U CN 2010201358675U CN 201020135867 U CN201020135867 U CN 201020135867U CN 201623501 U CN201623501 U CN 201623501U
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- dsp
- photovoltaic
- chip microcomputer
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- control system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
A photovoltaic feedback inverter control system includes a DSP and two controllers of a singlechip, the DSP is connected with a photovoltaic panel. The DSP is connected with a power circuit and an electric network, to control a main power circuit to perform one or more action(s) of turning off power elements, switching off the electric network, discharging bus-bar voltage and cutting off the photovoltaic panel; the singlechip is connected with the DSP, wherein the DSP is connected with a network to control a human-computer interface to perform one or more action(s) of turning off power elements, switching off the electric network, discharging bus-bar voltage and cutting off the photovoltaic panel; the DSP is communicated with the singlechip in series or in parallel; the singlechip is provided with two electric power systems, wherein one electric power system is an energy storage type electric power system.
Description
Technical field
The utility model relates to the solar power generation application, relates in particular to a kind of photovoltaic parallel inverter control system.
Background technology
In today that energy crisis constantly highlights, the utilization of new forms of energy has been caused the extensive concern of countries in the world, solar energy is with its green non-pollution, renewable, and the adaptable characteristics in region become in numerous new forms of energy comparatively desirable a kind of.
The system that solar energy will be converted into electric energy used in everyday is commonly referred to as photovoltaic generating system, generally comprises parts such as photovoltaic battery panel, inverter.For the inverter of grid type, reliability is most important, if inverter breaks down, and can not break away from the permanent damage that may cause great power outage even might cause grid equipment from electrical network immediately.
The reliable electrical network that breaks away from during for the assurance fault, the many assurances of paying attention on circuit design of general inverter can reliably be excised electrical network during the assurance fault, as adopting overcurrent protector, fuse etc.This scheme generally can only just begin action after overcurrent takes place, protect not prompt enough.Also have inverter to adopt the polylith controller, the main loop of power circuit of control is monitored operating state for one, adds the controller of lastblock man-machine interface, the more cost that increased of this scheme controller.
Summary of the invention
The utility model provides a kind of low cost, and high reliability can break away from the photovoltaic parallel inverter control system of electrical network immediately.
The purpose of this utility model is achieved through the following technical solutions:
A kind of photovoltaic parallel inverter control system, comprise DSP and single-chip microcomputer two block controllers, described DSP is connected with photovoltaic panel, wherein DSP is connected with electrical network with power circuit, control main loop of power circuit, implement the switch-off power device, cut off electrical network, the busbar voltage of releasing, cut off one or more actions in the photovoltaic panel, described single-chip microcomputer is connected with DSP, wherein single-chip microcomputer is connected with network, be used for the control of man-machine interface, implement the switch-off power device, cut off electrical network, the busbar voltage of releasing, cut off one or more actions in the photovoltaic panel.
Adopt the serial or parallel communication between described DSP and the single-chip microcomputer.
Described single-chip microcomputer has two cover electric power systems, and wherein a cover is the energy storage type electric power system.
The photovoltaic parallel inverter control system that the utility model has high reliability with lower cost realization.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of photovoltaic parallel inverter control system, comprise DSP and single-chip microcomputer two block controllers, described DSP is connected with photovoltaic panel, wherein DSP is connected with electrical network with power circuit, control main loop of power circuit, implement the switch-off power device, cut off electrical network, the busbar voltage of releasing, cut off one or more actions in the photovoltaic panel, described single-chip microcomputer is connected with DSP, wherein single-chip microcomputer is connected with network, be used for the control of man-machine interface, implement the switch-off power device, cut off electrical network, the busbar voltage of releasing, cut off one or more actions in the photovoltaic panel; Adopt the serial or parallel communication between described DSP and the single-chip microcomputer; Described single-chip microcomputer has two cover electric power systems, and wherein a cover is the energy storage type electric power system.
High-speed controller of the present utility model adopts TI company 32 bit DSPs at a high speed; be responsible for the control of main loop of power circuit; comprise the detection of various control signals and the modulation signal of power device; and the function of double a part of monitor network communication, simultaneously each key parameters (as line voltage, grid-connected current, mains frequency etc.) is monitored and moved (as turn-offing all power devices, release busbar voltage, cut-out electrical network, cut-out photovoltaic cell etc.) at each malfunction enforcement protection.The low speed controller adopts 51 series monolithics; the control at chief leading cadre's machine interface; the communication of monitor network is monitored each key parameters (as line voltage, grid-connected current, mains frequency etc.) simultaneously and is moved (as turn-offing all power devices, release busbar voltage, cut-out electrical network, cut-out photovoltaic cell etc.) at each malfunction enforcement protection.Adopt serial ports RS232 communication between high-speed controller and the low speed controller, adopt the response mode exchange message, problem takes place in the either party, and the opposing party just implements the protection action.Simultaneously for to guarantee that power failure causes the situation that two block controllers all can't be worked, for super capacitor of single-chip microcomputer configuration, to guarantee system's reliability service.
Claims (3)
1. photovoltaic parallel inverter control system, comprise DSP and single-chip microcomputer two block controllers, it is characterized in that: described DSP is connected with photovoltaic panel, wherein DSP is connected with electrical network with power circuit, control main loop of power circuit, implement the switch-off power device, cut off electrical network, the busbar voltage of releasing, cut off one or more actions in the photovoltaic panel, described single-chip microcomputer is connected with DSP, wherein single-chip microcomputer is connected with network, be used for the control of man-machine interface, implement the switch-off power device, cut off electrical network, the busbar voltage of releasing, cut off one or more actions in the photovoltaic panel.
2. photovoltaic parallel inverter control system according to claim 1 is characterized in that: adopt the serial or parallel communication between described DSP and the single-chip microcomputer.
3. photovoltaic parallel inverter control system according to claim 1 and 2 is characterized in that: described single-chip microcomputer has two cover electric power systems, and wherein a cover is the energy storage type electric power system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201358675U CN201623501U (en) | 2010-03-19 | 2010-03-19 | Photovoltaic feedback inverter control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201358675U CN201623501U (en) | 2010-03-19 | 2010-03-19 | Photovoltaic feedback inverter control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201623501U true CN201623501U (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201358675U Expired - Fee Related CN201623501U (en) | 2010-03-19 | 2010-03-19 | Photovoltaic feedback inverter control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201623501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222935A (en) * | 2011-06-15 | 2011-10-19 | 中国电力科学研究院 | Grid-connected full digital monitoring system for controllable high-temperature superconducting magnetic energy storage (SMES) system |
-
2010
- 2010-03-19 CN CN2010201358675U patent/CN201623501U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222935A (en) * | 2011-06-15 | 2011-10-19 | 中国电力科学研究院 | Grid-connected full digital monitoring system for controllable high-temperature superconducting magnetic energy storage (SMES) system |
| CN102222935B (en) * | 2011-06-15 | 2014-03-12 | 中国电力科学研究院 | Grid-connected full digital monitoring system for controllable high-temperature superconducting magnetic energy storage (SMES) system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |