CN203849637U - Inverter for photovoltaic system - Google Patents
Inverter for photovoltaic system Download PDFInfo
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- CN203849637U CN203849637U CN201420151937.4U CN201420151937U CN203849637U CN 203849637 U CN203849637 U CN 203849637U CN 201420151937 U CN201420151937 U CN 201420151937U CN 203849637 U CN203849637 U CN 203849637U
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- inverter
- orientation
- temperature
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- inclination sensor
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- 238000001816 cooling Methods 0.000 claims description 53
- 238000012544 monitoring process Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 238000009423 ventilation Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000001419 dependent effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
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- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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
The utility model relates to an inverter (1) for a photovoltaic system. The inverter comprises an inclination sensor (14) used for determining the orientation of the inverter (1) in a space so as to set and/or monitor the thermal characteristics of the inverter (1).
Description
Technical field
The utility model relates to a kind of inverter for photovoltaic (PV) system.
Background technology
Inverter is for changing into the direct current of input side in the alternating current of outgoing side.Especially in the situation that for the inverter of PV system, the alternating current of outgoing side is suitable for being stored in an energy supply network local and/or higher level.The power component of this type of inverter, especially but be not only the semiconductor power switch using and caused dissipated power in being arranged in the inverter bridge of outgoing side, this dissipated power must derive as heat dissipation.
The derivation of heat dissipation is undertaken by one or more cooling bodies and freedom or forced convertion conventionally.Especially when free convection, but for example same when the forced convertion of being undertaken by ventilation blower, attainable heat is derived the installation site of depending on inverter.At this, this inverter generally has a preferred orientation of installing, and in this orientation, cooling power is maximum.In the situation that being difficult to imagination, the inverter using under PV system background less, that install can meet a given preferred installation orientation at home.In some cases, due to dirigibility, also may allow wittingly different installation sites when mounted.Due to these reasons, inverter is segmented according to power, make these inverters can be transformed into the danger that the worst installation site of refrigerating function be there is no to inverter overheating.Thus, generally near inverter, use needed larger cooling body while installing with preferred orientation such as this inverter of fruit.
The purpose of this utility model is, creates a kind of inverter, wherein cancelled this type of cooling system and the excessive size of cooling body especially, and there is lower power without inverter is categorized as, and not can due to install orientation cause overheated.
Utility model content
For solve this object, according to the salient point of the application's inverter, be an inclination sensor, for determining that this inverter is in the orientation in space, wherein this inclination sensor is adapted for the thermal characteristic of setting and/or monitoring this inverter.At one, according in the application's method, the orientation of this inverter is by means of the thermal characteristic that is arranged in inclination sensor in this inverter and determines and be used to set and/or monitor this inverter.By considering the inclination of actual, measured inverter, no longer need oversize inverter cooling system.In each installation orientation of this inverter, can carry out and this installation orientation working method that mate, this inverter.
Especially in a kind of favourable design of this inverter, the power of input side and/or outgoing side can depend on measured orientation and be restricted.This peak power output is by a table, characteristic curve (Kennlinie) or given in advance with parameterized form.So in the situation that be not oversize cooling system, can also install and use the maximum of this inverter in this orientation can through-put power in orientation at each.
By in a favourable design of the attainable method of this inverter, measure and monitor the temperature of this inverter inside.When this temperature surpasses a threshold value given in advance, export a rub-out signal, wherein this threshold value given in advance depends on the orientation of this inverter being recorded by this inclination sensor and determines.For carrying out the applicable inverter of this method design, there is a temperature sensor and a monitoring means.
In this way, can when temperature monitoring, consider the orientation of inverter, the temperature of the same impact expection of this orientation.In reckoning without the temperature monitoring of this impact, must be given in the desired temperature under the worst inverter orientation in cooling aspect.Yet, if inverter is worked in to cooling best, preferred orientation, adopted too high desired temperature threshold value.The application allows temperature monitoring sensitive and quick reply when forming mistake to the consideration of inverter orientation.Meanwhile, can also specify wider orientation range for the work of inverter.
In another favourable design of this inverter, this inclination sensor is adapted for, determine this inverter at least with respect to the deflection of a vertical axis, preferably also extraly with respect to a horizontal axis, the therefore deflection in a plurality of dimensions in a fixing coordinate system namely.So can consider and each possible deviation for the optimum installation of this cooling system orientation.
In another favourable design of this inverter, this inclination sensor is microminiaturized parts, from the group of MEMS (micro electro mechanical system) (MEMS).A kind of inclination sensor of formation like this can be easily and without being significantly incorporated in this inverter to space requirement.Especially likely, this inclination sensor so that being installed, friendly mode is arranged on a plate of this inverter.
The theme that the favourable design of other of this inverter and improvement project are dependent claims.
Accompanying drawing explanation
To by means of three accompanying drawings, describe the utility model in detail by an embodiment below.Accompanying drawing illustrates:
Fig. 1 is a skeleton view that is arranged in the inverter at vertical wall place;
Fig. 2 is the connection block diagram of an inverter in PV system, and
Fig. 3 is a kind of for operating the process flow diagram of the method for inverter.
Embodiment
Fig. 1 shows a skeleton view that is arranged on the PV inverter 1 at vertical wall place 5.Inverter 1 has a housing 2, and on the vertical side of this housing, arranging has cooling body 3, and these cooling bodies are with vertically extending cooling fin.In the inside of inverter 1, in this figure, sightless electronic component is connected in calorifics with cooling body 3.These members, especially the power semiconductor member of this inverter 1 power delivery level, the inverter bridge of the DC of input side (direct current)/DC transformer or outgoing side for example namely, so can further be delivered to cooling body 3 by converting hot dissipated power to.During inverter 1 work, air-flow 4 is inswept and heat is derived from cooling body 3 along the cooling fin of cooling body 3.
In Fig. 1, shown an inverter, its cooling air-flow 4 that relates to is along free, the optional convection current of the cooling body 3 of these side direction arrangements.
Alternatively, it is known by one or more ventilation blowers, assisting the inverter of the air cooling of free convection.In the application's inverter, both can realize free convection and also can realize forced convertion and carry out cooling.In Fig. 1, the arrangement of cooling body 3 in the outside of inverter 1 is only also exemplary.Identical with the cooling body that is arranged in outside, in the application's inverter, can be provided with built-in cooling fin and the air-flow 4 that is conducted through this housing.Also feasible, in the application's inverter, cooling body 3 is positioned at one or more outsides arbitrarily, for example rear wall of this housing and/or antetheca.
The inverter 1 of showing in Fig. 1 is to be orientated as well as possible aspect the cooling power being provided by cooling body 3.Shown in orientation in, add that hot-air climbs cooling fin place and the side of extending at cooling fin thus moves upward.For the air climbing, when moving, the cooling fin along cooling body produced subsequently very little air resistance, therefore realized larger air-flow 4 and good cooling effect accordingly.If inverter 1 is on the contrary from its preferred orientation deflection, for example forward, backward or to side, these cooling fins are orientated and the air-flow 4 that upwards climbs can be subject to the less inswept cooling fin that hinders no longer vertically so.Equally, when air-flow 4 is inswept, the heat still less of air side is received and has derived thus less dissipated power.When one of cooling body 3 of the inverter 1 of Fig. 1 is arranged in downside, occurred this disadvantageous situation, for example its mode is, the housing of this inverter turn 90 degrees around an axis dextrorotation vertical with wall.In the situation that the application's inverter 1, this inverter can also can make heterogeneous (for example 3 phases) inverter for 1 phase inverter.
Fig. 2 illustrates parts with schematic connection box and is able to the substantive PV system reducing.In this PV system, an inverter 1 is connected with a PV generator 6 at input side and is connected with a functional network 7 at outgoing side.PV generator 6 is that the switch symbols by an independent PV battery represent in this article.It should be understood that this PV generator 6 can be by a plurality of PV module compositions, these modules and then can be formed by a plurality of PV batteries respectively.These PV modules can be serially connected in a so-called string (String).A plurality of strings can connect with being connected in parallel to each other.In addition, PV system unit relevant under the application's background and inverter 1 in Fig. 2, have only been shown.It should be understood that on the direct current of inverter 1 and/or AC can setting example for example, for example, as switching mechanism (resolution element, guard member), filtrator (a sinusoidal filtrator), network monitor device and/or the transformer do not shown.
Inverter 1 has a power part 10, this power part comprises at least one inverter bridge and comprises in due course a DC/DC transformer that is placed on this inverter bridge upstream, for example booster converter or fall booster converter (Tiefsetzsteller).Power part 10 can have an output transformer at this, or also can form and there is no transformer.Inverter bridge and the DC/DC transformer existing in due course have power semiconductor switch, for example MOSFET (mos field effect transistor) or IGBT (igbt) or semiconductor diode.These semiconductor power switch are converted to heat by dissipated power when its work, and these heat are discharged to surrounding air by cooling body 3 and the cooling fin thereof of the outside shown in Fig. 1 and be arranged in inverter 1.Also may there are cooling needs in the transformer or the high-frequency transmission device that exist in due course.
Inverter 1 also comprises a control device 11, and this control device is for control and the especially control of power part 10 of inverter 1.In addition, a voltage measuring apparatus 12 and a current measuring device 13 are set in the interchange output of inverter 1, its measured value is transported to control device 11 places.Other voltage measuring apparatus for example can be arranged on input side.Control device 11 by measured electric current and magnitude of voltage determine for inverter bridge and some turn-on time power semiconductor, suitable of the DC/DC transformer of power part 10 in due course.
In addition, according to the application, be provided with an inclination sensor 14, this inclination sensor is arranged on this inverter 1 inside.This can be form discretely with control device 11 or can also be incorporated in control device 11.Inclination sensor 14 can detect the deflection with respect to a vertical axis, namely the deflection in a dimension (1D).Advantageously, inclination sensor 14 can also detect the deflection with respect to a horizontal axis extraly.In the case, this sensor be a kind of multidimensional, the inclination sensor 14 of two dimension or three-dimensional (2D or 3D) namely.The measuring principle of inclination sensor 14 can be based on to the deviation of a sensor element (suitably time with a test block being fastened thereon explicitly) or crooked detection, then infers thus inclination sensor 14 and so corresponding deflection of inverter 1.Advantageously, this inclination sensor is corresponding to microminiaturized parts, and these microminiaturized parts are subordinated to the group of MEMS (micro electro mechanical system) (MEMS).In the case, inclination sensor 14 is due to large-scale production but a kind of dog-cheap parts and can for example be arranged on a plate of control device 11 under plate for inverter 1 loads the background of (Platinenbest ü ckung).To the deviation of sensor element or crooked detection, the arm of a bearing test piece for example, can condenser type, inductance type or piezoelectric type ground carries out.According to the application, this inclination sensor 14 is used under the background of the thermal management of inverter 1.
As illustrated relatively with Fig. 1, the power-performance of cooling body 3 depends on the orientation of inverter 1, especially depends on that inverter 1 is with respect to deflection or the inclination of a preferred orientation.In first design of inverter 1, the orientation of the inverter 1 being recorded by inclination sensor 14 is transferred to control device 11 or is obtained and analyzed by this control device.
For example, from the power (measurement result by voltage measuring apparatus 12 and current measuring device 13 provides) of power part 10 transmission, now will by control device 11, depend on that the orientation of measured inverter 1 limits.In addition, control device 11 compares the orientation of the inverter 1 transmitting from inclination sensor 14 and a preferred orientation given in advance.Only when these are orientated when consistent, in due course within the limits of error given in advance, control device 11 allows the same maximum given in advance can through-put power.The measured orientation departing from for the orientation with given in advance, control device 11 only allows less peak power.So realized, inverter 1 also can transmit the power of maximum possible when installing with preferred orientation in this orientation.Can advantageously stop thus the supply restriction to the less peak power of transmitting, to avoid the final overload that caused by inverter overheating.In addition, no longer require to design for disadvantageous installation site the cooling system of inverter 1, inverter 1 is in fact seldom taked this disadvantageous installation site.Therefore, but the application's inverter 1 regulated its stores power and also regulated its dissipated power that need to derive, this is by means of set inclination sensor 14, depends on its in esse orientation and carry out.Therefore can cancel desired in the situation that of conventional inverter (for cover the inverter adversely installed the spitting image of part), expensive, oversize, for the cooling system of inverter 1.The form that the power that maximum given in advance can be transmitted for example can be shown provides, and this table depends on measured orientation.Also can imagine, the peak power that can transmit by means of the orientation recording by inclination sensor 14 for example, with parameterized form, the form with funtcional relationship exists.So the power that maximum can be transmitted can be determined by measured degree of tilt by funtcional relationship in the situation that.
Can propose extraly, send one of signal designation because measured degree of tilt is characterized as disadvantageous installation site, for example at this equipment from being in or by a communication interface.In this way, can directly after completing installation, again change as required installation site.Yet by this inverter, sending the in esse of this inverter of signal designation thus likely tilts unintentionally.The setter of this system or operator are notified clearly thus, this inverter can not be realized in due course the power of its maximum possible in its course of work, and this power is for example, for a specific orientation nonangular installation of this inverter (for) appointment.Situation for (for example, due to the boundary condition existing) is installed intentionally obliquely, can propose, and confirms the measured orientation of this warning message and storage inverter 1.Inverter 1 can subsequently be measured its orientation in space, for example, in the continuous service of inverter 1.For the follow-up orientation of inverter 1 in space that measured, and this orientation and the orientation situation devious previously having stored, inverter 1 can send it as signal.In this way, can be by inverter 1 change and the operator associated, that the change in the power transfer of inverter 1 maximum possible carrys out reporting system of the orientation in space.In time by the operator of following event notice system, these events adversely affect available stores power and charge thereof thus.For the situation that tilts to install unintentionally, the operation of inverter under higher transfer power can directly be revised and guaranteed to mistake.Also feasible at this, be stored in after install revising final unintentionally and the orientation of in esse inverter.
In the purposes of or additivity substituting second of inclination sensor 14, this inclination sensor is for improvement of the temperature monitoring of inverter 1 inside.For example, for (described power semiconductor switch) within protecting the parts of inverter 1, especially power part 10, one or more temperature sensors 15 can be set within inverter 1.
Temperature sensor 15 is on the one hand for identifying the excessive temperature of the coup injury of one of these parts.
Yet in addition, the mistake that temperature sensor 15 also causes for identification error or self, even if measured temperature value is still lower than directly material being caused the value of damage.For this reason, measured temperature is compared with a temperature of expecting in measurement point under corresponding running parameter.If the temperature of actual measurement surpasses the temperature of expection, this expresses possibility wrong so, for example in the cooling inverter of forced convertion, represent cooling system inefficacy ventilation blower and/or represent the obstruction of a cooling duct or shell nozzle or at least xsect reduce, it is cooling for carrying out that air-flow 4 is conducted through these shell nozzles.The temperature of expection depends on the running parameter of inverter 1 at this, especially depends on the power of transmission, for example, as determining by voltage measuring apparatus 12 and current measuring device 13.Another on the whole relevant running parameter be the environment temperature of inverter 1, this temperature is determined by a corresponding ambient temp sensor 16.
According to the application, the orientation of the inverter 1 of being measured by inclination sensor 14 is considered as a running parameter that affects desired temperature equally.Desired temperature records in advance and with the form of multidimensional table (matrix or feature line chart) or parametrization ground, deposits in control device 11 in modeling or by the measurement exemplarily adopting.Parametrization means under this paper background, deposits one and calculates specification (Rechenvorschrift), by this, calculates specification, can calculate the temperature of expection by means of measured running parameter.Then be defined for a tolerance of the deviation size of largest tolerable between measured and given in advance temperature.If surpassed this tolerance, so deviation be identified as to a wrong index and for example send signal or initiate a message.
In this way, can when temperature monitoring, consider the orientation of inverter, the temperature of the same impact expection of this orientation.In reckoning without the temperature monitoring of this impact, must be given in the desired temperature under the worst inverter orientation in cooling aspect.Yet, if inverter is worked in to cooling favourable, preferred orientation, adopted too high desired temperature threshold value.Yet these two orientations can occur in practice.In the situation that not taking explicitly into account inverter orientation, the temperature of measuring under different orientations differs and traces back to surely a wrong index, and may be only to be caused by different orientations and the associated cooling change of inverter.At tolerance given in advance, obtain in situation, consider in the following manner this point: select enough large tolerance, to can catch the difference being caused by orientation in measured temperature.Yet consequently, the wrong index of necessary being falls in range of tolerable variance and does not therefore identify and send signal.
The application can consider the orientation of inverter 1 by means of inclination sensor 14, for corresponding desired temperature (these temperature for be also to depend on degree of tilt according to the application's inverter) can arrange one less of sending the tolerance of signal.Realized thus when temperature monitoring the correspondingly sensitiveer identification to mistake.
If measure one, surpass the temperature that desired temperature is greater than this tolerance given in advance, can propose so, control device 11 reduces the power being transmitted by inverter 1.Alternatively or extraly, can propose, information or caution signal show by way of caution at inverter 1 place for the temperature of the measurement of identifying and the deviation of desired temperature.Can propose, for example, at an output interface of inverter 1, export this alert message at a communication interface place, to be transferred to a for example central monitoring device place simultaneously.
In shown inverter 1, inclination sensor 14 is analyzed in control device 11 inside.For this reason, a part for control device forms a monitoring means.Alternatively, naturally feasible, this monitoring means forms a separated unit, and this unit is connected and is connected by signal conductor or communication with control device 11.In the case, monitoring means can also be embodied as and can reequip.
As shown in FIG. 2, inclination sensor 14 is arranged in the housing 2 of inverter 1.Can imagine in theory, inclination sensor 14 is embodied as separated unit, and by this unit, the orientation to inverter 1 in space is only determined once, for example, when the installation first of inverter 1.Therefore inclination sensor 14 is only connected with inverter 1 provisionally and is not the ingredient of permanent, the integration of inverter 1.Because inverter 1 in many cases only single install, so this once definite orientation can be assumed to immutable and as constant control parameter, be stored in the control device 11 of inverter 1 so that its thermal characteristic is set and/or to be monitored.Yet, by this type of inverter, cannot, to follow-up change in orientation of carrying out, for example, at the continuous operation of inverter, detect and therefore can not send signal.On the other hand, current obtainable inclination sensor 14 is due to its large-scale production as MEMS (micro electro mechanical system) (MEMS) parts but relatively inexpensive.Even therefore they as the ingredient of the integration of inverter 1 also only caused inverter 1 insignificant, be at least that tolerable cost increases.
Fig. 3 illustrates a kind of for operating the application's method of inverter with process flow diagram form.The inverter that the method for example can be shown in Fig. 2 is implemented.The reference symbol of using is below exemplarily with reference to the embodiment of Fig. 2.
In first step S1, operate this inverter 1, wherein in step S2, by means of inclination sensor 14, record the orientation (degree of tilt) of inverter 1.At one, subsequently determine whether in step S3 and have temperature measuring data extraly, for example, by one or more temperature sensors 15, take.Whether exist temperature measuring data can depend on the design feature of inverter 1.
When not there is not temperature measuring data, the method is branched off into a step S4, wherein depends on the power that the degree of tilt recording in step S2 is determined and regulated a maximum to transmit.Power in order to determine that this maximum can be transmitted is used provided data in a step S5, table or the funtcional relationship for example described relatively with Fig. 2.
If judge and have temperature measuring data in step S3, the method is branched off into a step S6 so on the contrary.
In this step S6, the information based on providing in step S5, recording equally a maximum that depends on degree of tilt can through-put power.In addition, depend on degree of tilt and depend in due course other parameters, for example whether same previous described external temperature and the power of actual transmissions, check by the temperature data of temperature sensor measurement consistent with the desired temperature providing in a step S7.
If judge and not mate, so can the threshold value of through-put power except the maximum of the degree of tilt based on measured, also determine a threshold value other temperature based on measured, can through-put power for maximum.In inverter 1, by less Threshold in these two threshold values that record (depend on degree of tilt and depend on temperature), be then that maximum can through-put power.
Subsequently, not only from step S4, go out to return from step S6, in a step S8, the duty of the inverter of new settings 1 sent to signal, for example at this inverter 1 from being in or by a communication interface.For in step S6 measured and unmatched situation detected between desired temperature for relevant parameter, therefore can also send to the operator of this PV system a warning message.So this can impel the cooling system inspection of inverter 1 or get rid of possible inefficacy or pollution.Therefore can cause once again in time the normal work of inverter 1.The method of showing is that (standard) implemented continuously, and its mode is for by shown step repeatedly, cyclically implement in due course.
Reference list
1 inverter
2 housings
3 cooling bodies with cooling fin
4 air-flows
5 walls
6 photovoltaic generators
7 energy supply networks
10 power parts
11 control device
12 voltage measuring apparatus
13 current measuring devices
14 inclination sensors
15 temperature sensors
16 ambient temp sensors
Claims (13)
1. the inverter for photovoltaic system (1), is characterized in that, an inclination sensor (14) for determine this inverter (1) in the orientation in space to set and/or monitor the thermal characteristic of this inverter (1).
2. inverter according to claim 1 (1), wherein this inclination sensor (14) is adapted for, and determines that this inverter (1) is with respect to the deflection of a vertical axis.
3. inverter according to claim 2 (1), wherein this inclination sensor (14) can determine that this inverter (1) is with respect to the deflection of a horizontal axis extraly.
4. inverter according to claim 1 (1), wherein this inclination sensor (14) is corresponding to microminiaturized parts, and these microminiaturized parts are subordinated to the group of MEMS (micro electro mechanical system) (MEMS).
5. according to the inverter one of claim 1 to 4 Suo Shu (1), wherein the power of input side and/or outgoing side depends on measured orientation and is restricted.
6. inverter according to claim 5 (1), a peak power output that depends on this orientation of this inverter (1) wherein given in advance.
7. inverter according to claim 6 (1), wherein this peak power output is by a table, characteristic curve or given in advance with parameterized form.
8. according to the inverter one of claim 1 to 4 Suo Shu (1), this inverter has at least one temperature sensor (15) and a monitoring means, this monitoring means is adapted for monitoring and exports a rub-out signal by the definite temperature of this temperature sensor (15) and when surpassing a temperature threshold given in advance, and wherein this threshold value given in advance depends on the orientation of this inverter (1) being recorded by this inclination sensor (14).
9. inverter according to claim 8 (1), what wherein this threshold value given in advance also depended on this inverter (1) inputs or outputs power and/or environment temperature.
10. inverter according to claim 8 (1), wherein a tolerance given in advance, wherein only has and when the deviation between one of measured temperature and the threshold value given in advance of a subordinate is greater than this tolerance, just exports this rub-out signal.
11. inverters according to claim 8 (1), wherein this monitoring means is incorporated in a control device (11) of this inverter.
12. according to the inverter one of claim 1 to 4 Suo Shu (1), and wherein this inverter (1) is adapted for and sends signal designation and the deviation for the optimum orientation of the cooling characteristics of this inverter (1).
13. according to the inverter one of claim 1 to 4 Suo Shu (1), is adapted for orientation in space of this inverter (1) that storage once determines, for subsequently carrying out other measurement to determine that this inverter (1) is in the orientation in space and for sending this inverter (1) that signal designation determined by follow-up measurement in the deviation of orientation orientation in space with respect to stored this inverter (1) in space.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202014100379.7 | 2014-01-29 | ||
| DE202014100379.7U DE202014100379U1 (en) | 2014-01-29 | 2014-01-29 | Inverters, in particular for photovoltaic installations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849637U true CN203849637U (en) | 2014-09-24 |
Family
ID=50235834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420151937.4U Expired - Lifetime CN203849637U (en) | 2014-01-29 | 2014-03-31 | Inverter for photovoltaic system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203849637U (en) |
| DE (1) | DE202014100379U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073481A (en) * | 2016-04-29 | 2018-12-21 | 罗伯特·博世有限公司 | Switch element with temperature monitoring and the method for temperature monitoring |
-
2014
- 2014-01-29 DE DE202014100379.7U patent/DE202014100379U1/en not_active Expired - Lifetime
- 2014-03-31 CN CN201420151937.4U patent/CN203849637U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073481A (en) * | 2016-04-29 | 2018-12-21 | 罗伯特·博世有限公司 | Switch element with temperature monitoring and the method for temperature monitoring |
| CN109073481B (en) * | 2016-04-29 | 2021-01-22 | 罗伯特·博世有限公司 | Switching element with temperature monitoring and method for temperature monitoring |
| US10948360B2 (en) | 2016-04-29 | 2021-03-16 | Robert Bosch Gmbh | Switching element having temperature monitoring and method for temperature monitoring |
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| Publication number | Publication date |
|---|---|
| DE202014100379U1 (en) | 2014-02-18 |
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