CN103257661A - Preheating dehumidification method applied to photovoltaic inverter - Google Patents
Preheating dehumidification method applied to photovoltaic inverter Download PDFInfo
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- CN103257661A CN103257661A CN2013102239883A CN201310223988A CN103257661A CN 103257661 A CN103257661 A CN 103257661A CN 2013102239883 A CN2013102239883 A CN 2013102239883A CN 201310223988 A CN201310223988 A CN 201310223988A CN 103257661 A CN103257661 A CN 103257661A
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Abstract
The invention relates to a preheating dehumidification method applied to a photovoltaic inverter. The method comprises the following steps that a, input voltage of the photovoltaic inverter is detected; b, environmental conditions in a cabinet of the photovoltaic inverter are acquired when the input voltage of the photovoltaic inverter is less than a grid connection voltage set value, wherein the environmental conditions include temperature and humidity; when the cabinet of the inverter is required to be subjected to heating dehumidification according to the environmental conditions, the heating dehumidification starting time is preestimated, and the time of the photovoltaic inverter reaching grid connection voltage the day before is read; and c, the heating dehumidification on the cabinet of the photovoltaic inverter is determined according to the preestimated heating dehumidification starting time and the time of the photovoltaic inverter reaching the grid connection voltage the day before, and heating dehumidification equipment is started to conduct the heating dehumidification on the photovoltaic inverter until the environmental conditions in the cabinet of the photovoltaic inverter are matched with working requirements of the photovoltaic inverter. The method is simple and convenient to operate, wide in application scope, safe and reliable; the energy loss of the photovoltaic inverter is reduced; and the conversion efficiency is improved.
Description
Technical field
The present invention relates to a kind of heating and dehumidification method, especially a kind of dehumanization method that preheats that is applied to photovoltaic DC-to-AC converter belongs to the technical field of photovoltaic DC-to-AC converter.
Background technology
Photovoltaic DC-to-AC converter is the electrical equipment that the direct current that solar panel produces is changed into alternating current, photovoltaic DC-to-AC converter for grid type, it is more high to the sun power utilization ratio, just there is more electric energy to be transported on the electrical network, also just can produce bigger economic worth, therefore, the energy loss that reduces whole photovoltaic system is necessary.The maximal efficiency point of photovoltaic DC-to-AC converter is followed the tracks of the efficient of (Maximum Power Point Tracking) and raising photovoltaic DC-to-AC converter just in order to reduce the loss of system.
Photovoltaic DC-to-AC converter is as a kind of electrical equipment, because the requirement of safety and reliability, its operation must be under certain environmental baseline, main consideration low temperature and two kinds of environmental baselines of high humidity in the actual working environment of photovoltaic DC-to-AC converter.Particularly, when photovoltaic DC-to-AC converter is in cryogenic conditions following time, may produce adverse influence to devices such as the semiconductor devices in the photovoltaic DC-to-AC converter internal control making sheet, fan, display screens; Under the condition of high humility, the insulation characterisitic of photovoltaic DC-to-AC converter can descend, the corrosion of metal parts also can be accelerated, therefore, before the photovoltaic DC-to-AC converter start, should guarantee that it is under the suitable temperature and humidity condition, if environment temperature is crossed low or humidity is too high, need it is carried out the heating and dehumidification action, heating and dehumidification partial circuit principle schematic is as shown in Figure 1.
As shown in Figure 1, the heating and dehumidification circuit comprises a fan, well heater and from the control signal of control module, after control module sends the heating and dehumidification instruction, fan and well heater are started working, after the air-flow heater via heating that fan produces, at the inner circulating air that produces of photovoltaic DC-to-AC converter rack, play the function to its heating and dehumidification.Reach the requirement of photovoltaic DC-to-AC converter startup when temperature and humidity after, control module sends halt instruction, and the heating and dehumidification circuit quits work, and photovoltaic DC-to-AC converter dependence self-heating can be kept it and be in the suitable temperature and humidity scope.
Traditional photovoltaic DC-to-AC converter heating and dehumidification flow process as shown in Figure 2, system at first detects the input voltage of photovoltaic DC-to-AC converter, when this voltage reach be incorporated into the power networks require voltage after, system determines whether to start the heating and dehumidification program according to ambient condition, if system needs heating and dehumidification, after heating and dehumidification finished, system just began to generate electricity by way of merging two or more grid systems so, and this program can cause the loss of system capacity in the heating and dehumidification process.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of dehumanization method that preheats that is applied to photovoltaic DC-to-AC converter is provided, it is simple to operation, reduces the energy loss of photovoltaic DC-to-AC converter, improves conversion efficiency, and wide accommodation is safe and reliable.
According to technical scheme provided by the invention, a kind of dehumanization method that preheats that is applied to photovoltaic DC-to-AC converter, the described dehumanization method that preheats comprises the steps:
The input voltage of a, detection photovoltaic DC-to-AC converter;
B, when the input voltage of photovoltaic DC-to-AC converter is lower than when being incorporated into the power networks voltage setting value, obtain the ambient condition in the photovoltaic DC-to-AC converter rack, described ambient condition comprises temperature and humidity; When determining that according to described ambient condition needs carry out heating and dehumidification to the inverter rack, estimate start the heating and dehumidification time and the previous day of reading photovoltaic DC-to-AC converter reach time of the voltage that is incorporated into the power networks;
C, according to estimate start the heating and dehumidification time with the previous day photovoltaic DC-to-AC converter to reach time of the voltage setting value that is incorporated into the power networks definite during to photovoltaic DC-to-AC converter rack heating and dehumidification, start heating and dehumidification equipment photovoltaic DC-to-AC converter is carried out heating and dehumidification, the job requirement of the ambient condition coupling photovoltaic DC-to-AC converter in the photovoltaic DC-to-AC converter rack.
Also comprise the steps:
D, reach when being incorporated into the power networks voltage setting value when the input voltage of photovoltaic DC-to-AC converter, obtain the ambient condition in the photovoltaic DC-to-AC converter rack, when determining that according to described ambient condition needs carry out heating and dehumidification to the inverter rack, start heating and dehumidification equipment photovoltaic DC-to-AC converter is carried out heating and dehumidification, the job requirement of the ambient condition coupling photovoltaic DC-to-AC converter in the photovoltaic DC-to-AC converter rack.
Described heating and dehumidification equipment comprises fan and well heater.
Temperature in the described photovoltaic DC-to-AC converter rack detects by temperature sensor and obtains, and the humidity in the photovoltaic DC-to-AC converter rack detects by humidity sensor and obtains.
Described estimating starts the heating and dehumidification time and determines according to the duty of temperature, humidity and the heating and dehumidification equipment of current environment state in the photovoltaic DC-to-AC converter rack.
Advantage of the present invention: before voltage setting value is incorporated into the power networks in the input voltage no show of photovoltaic DC-to-AC converter, start heat time heating time, the previous day photovoltaic DC-to-AC converter and reach the time relationship of the voltage that is incorporated into the power networks by estimating, come the photovoltaic DC-to-AC converter rack is preheated dehumidifying by starting heating and dehumidification equipment, the input voltage of guaranteeing photovoltaic DC-to-AC converter reaches when being incorporated into the power networks voltage setting value, the work of can in time being incorporated into the power networks, improve the generated energy of photovoltaic DC-to-AC converter, simple to operation, reduce the energy loss of photovoltaic DC-to-AC converter, improve conversion efficiency, wide accommodation, safe and reliable.
Description of drawings
Fig. 1 is the structural representation of heating and dehumidification equipment in the photovoltaic DC-to-AC converter rack.
Fig. 2 carries out the process flow diagram of heating and dehumidification for existing photovoltaic DC-to-AC converter.
Fig. 3 carries out the workflow diagram of heating and dehumidification for photovoltaic DC-to-AC converter of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 3: in order to improve the conversion efficiency of photovoltaic DC-to-AC converter, reduce the energy loss of photovoltaic DC-to-AC converter, the present invention comprises the steps: the dehumanization method that preheats of photovoltaic DC-to-AC converter
The input voltage of a, detection photovoltaic DC-to-AC converter;
When the input voltage of photovoltaic DC-to-AC converter is lower than when being incorporated into the power networks voltage setting value, photovoltaic DC-to-AC converter can not be incorporated into the power networks, till the input voltage that need wait until photovoltaic DC-to-AC converter reaches when being incorporated into the power networks voltage setting value.
B, when the input voltage of photovoltaic DC-to-AC converter is lower than when being incorporated into the power networks voltage setting value, obtain the ambient condition in the photovoltaic DC-to-AC converter rack, described ambient condition comprises temperature and humidity; When determining that according to described ambient condition needs carry out heating and dehumidification to the inverter rack, estimate start the heating and dehumidification time and the previous day of reading photovoltaic DC-to-AC converter reach time of the voltage that is incorporated into the power networks;
In the existing heating and dehumidification method, after reaching the voltage setting value that is incorporated into the power networks, the input voltage of photovoltaic DC-to-AC converter again the ambient condition in the photovoltaic DC-to-AC converter rack is detected judgement, temperature in the described ambient condition can obtain by the temperature sensor detection that is arranged in the photovoltaic DC-to-AC converter rack, and the humidity in the ambient condition can obtain by the humidity sensor detection that is arranged in the photovoltaic DC-to-AC converter rack; When the ambient condition that detects photovoltaic DC-to-AC converter can not satisfy the job requirement of photovoltaic DC-to-AC converter, need carry out heating and dehumidification to photovoltaic DC-to-AC converter.The temperature of described heating and dehumidification is different and different according to the setting of the photovoltaic DC-to-AC converter of different operating environment.When determining to carry out heating and dehumidification to the inverter rack by ambient condition, in the embodiment of the invention, before not reaching the voltage setting value that is incorporated into the power networks, the input voltage of photovoltaic DC-to-AC converter just carries out heating and dehumidification, when the input voltage of photovoltaic DC-to-AC converter reaches when being incorporated into the power networks voltage setting value, can make the photovoltaic DC-to-AC converter work of being incorporated into the power networks immediately, thereby can reduce the energy loss of photovoltaic DC-to-AC converter effectively, improve the conversion efficiency of photovoltaic DC-to-AC converter.In the embodiment of the invention, described estimating starts the heating and dehumidification time by the work efficiency decision of the temperature value in the current environment state, humidity value and heating and dehumidification equipment, namely estimates the time that obtains heating and dehumidification according to the work efficiency of the temperature value in the current environment state, humidity value and heating and dehumidification equipment.Controller by photovoltaic DC-to-AC converter can read the previous day photovoltaic DC-to-AC converter and reach time of the voltage that is incorporated into the power networks, and the time that reaches the voltage setting value that is incorporated into the power networks with last daylight volt inverter is used as photovoltaic DC-to-AC converter under the work at present state and realizes time of being incorporated into the power networks.In the embodiment of the invention, that the photovoltaic DC-to-AC converter input the previous day voltage setting value that is incorporated into the power networks is convenient and swift effectively as a basis of time.
C, according to estimate start the heating and dehumidification time with the previous day photovoltaic DC-to-AC converter to reach time of the voltage that is incorporated into the power networks definite during to photovoltaic DC-to-AC converter rack heating and dehumidification, start heating and dehumidification equipment photovoltaic DC-to-AC converter is carried out heating and dehumidification, the job requirement of the ambient condition coupling photovoltaic DC-to-AC converter in the photovoltaic DC-to-AC converter rack.
In the embodiment of the invention, start the heating and dehumidification time and refer to current time with the time relationship that the previous day, photovoltaic DC-to-AC converter reached the voltage that is incorporated into the power networks, estimate the time that startup heating and dehumidification time and the previous day, photovoltaic DC-to-AC converter reached the voltage that is incorporated into the power networks and determine whether starting heating and dehumidification equipment according to estimating; Particularly, current time, estimate and start the heating and dehumidification time when the previous day, photovoltaic DC-to-AC converter reached the time of the voltage that is incorporated into the power networks, need with current time with estimate the accumulated value that starts the heating and dehumidification time and equal the time point that the previous day, photovoltaic DC-to-AC converter reached the voltage that is incorporated into the power networks and start heating and dehumidification equipment; If current time, estimate and start the heating and dehumidification time when the previous day, photovoltaic DC-to-AC converter reached the time of the voltage that is incorporated into the power networks, should start heating and dehumidification equipment immediately, in order to realize as soon as possible the photovoltaic DC-to-AC converter rack is carried out heating and dehumidification.Described heating and dehumidification equipment comprises fan and the well heater that is installed in the photovoltaic DC-to-AC converter rack, and certain described heating and dehumidification equipment can also adopt other required heat forms.In the embodiment of the invention, the job requirement of the ambient condition coupling photovoltaic DC-to-AC converter in the described photovoltaic DC-to-AC converter rack refers to that environment such as the interior temperature of photovoltaic DC-to-AC converter rack, humidity satisfy the job requirement of photovoltaic DC-to-AC converter.
Also comprise the steps:
D, reach when being incorporated into the power networks voltage setting value when the input voltage of photovoltaic DC-to-AC converter, obtain the ambient condition in the photovoltaic DC-to-AC converter rack, when determining that according to described ambient condition needs carry out heating and dehumidification to the inverter rack, start heating and dehumidification equipment photovoltaic DC-to-AC converter is carried out heating and dehumidification, the job requirement of the ambient condition coupling photovoltaic DC-to-AC converter in the photovoltaic DC-to-AC converter rack.
Usually, do not reach when being incorporated into the power networks voltage at the input voltage of photovoltaic DC-to-AC converter, by the process of heating and dehumidification in advance, can satisfy input voltage when photovoltaic DC-to-AC converter and reach working environment requirement when being incorporated into the power networks voltage setting value.In order to ensure the reliability of photovoltaic DC-to-AC converter work, reach when being incorporated into the power networks voltage setting value at the input voltage of photovoltaic DC-to-AC converter, can also detect the ambient condition in the photovoltaic DC-to-AC converter rack further, improve job stability and the reliability of photovoltaic DC-to-AC converter.
The present invention is before voltage setting value is incorporated into the power networks in the input voltage no show of photovoltaic DC-to-AC converter, start heat time heating time, the previous day photovoltaic DC-to-AC converter and reach the time relationship of the voltage that is incorporated into the power networks by estimating, come the photovoltaic DC-to-AC converter rack is preheated dehumidifying by starting heating and dehumidification equipment, the input voltage of guaranteeing photovoltaic DC-to-AC converter reaches and is incorporated into the power networks when requiring, the work of can in time being incorporated into the power networks, improve the generated energy of photovoltaic DC-to-AC converter, simple to operation, reduce the energy loss of photovoltaic DC-to-AC converter, improve conversion efficiency, wide accommodation, safe and reliable.
Claims (5)
1. the dehumanization method that preheats that is applied to photovoltaic DC-to-AC converter is characterized in that, the described dehumanization method that preheats comprises the steps:
(a), detect the input voltage of photovoltaic DC-to-AC converter;
(b), when the input voltage of photovoltaic DC-to-AC converter is lower than when being incorporated into the power networks voltage setting value, obtain the ambient condition in the photovoltaic DC-to-AC converter rack, described ambient condition comprises temperature and humidity; When determining that according to described ambient condition needs carry out heating and dehumidification to the inverter rack, estimate start the heating and dehumidification time and the previous day of reading photovoltaic DC-to-AC converter reach time of the voltage setting value that is incorporated into the power networks;
(c), according to estimate start the heating and dehumidification time with the previous day photovoltaic DC-to-AC converter to reach time of the voltage setting value that is incorporated into the power networks definite during to photovoltaic DC-to-AC converter rack heating and dehumidification, start heating and dehumidification equipment photovoltaic DC-to-AC converter is carried out heating and dehumidification, the job requirement of the ambient condition coupling photovoltaic DC-to-AC converter in the photovoltaic DC-to-AC converter rack.
2. the dehumanization method that preheats that is applied to photovoltaic DC-to-AC converter according to claim 1 is characterized in that, also comprises the steps:
(d), reach when being incorporated into the power networks voltage setting value when the input voltage of photovoltaic DC-to-AC converter, obtain the ambient condition in the photovoltaic DC-to-AC converter rack, when determining that according to described ambient condition needs carry out heating and dehumidification to the inverter rack, start heating and dehumidification equipment photovoltaic DC-to-AC converter is carried out heating and dehumidification, the job requirement of the ambient condition coupling photovoltaic DC-to-AC converter in the photovoltaic DC-to-AC converter rack.
3. the dehumanization method that preheats that is applied to photovoltaic DC-to-AC converter according to claim 1 and 2, it is characterized in that: described heating and dehumidification equipment comprises fan and well heater.
4. the dehumanization method that preheats that is applied to photovoltaic DC-to-AC converter according to claim 1 is characterized in that: the temperature in the described photovoltaic DC-to-AC converter rack detects by temperature sensor and obtains, and the humidity in the photovoltaic DC-to-AC converter rack detects by humidity sensor and obtains.
5. the dehumanization method that preheats that is applied to photovoltaic DC-to-AC converter according to claim 1 is characterized in that: described estimating starts the heating and dehumidification time and determines according to the duty of temperature, humidity and the heating and dehumidification equipment of current environment state in the photovoltaic DC-to-AC converter rack.
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| CN201310223988.3A CN103257661B (en) | 2013-06-06 | 2013-06-06 | Preheating dehumidification method applied to photovoltaic inverter |
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| CN201310223988.3A CN103257661B (en) | 2013-06-06 | 2013-06-06 | Preheating dehumidification method applied to photovoltaic inverter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140166635A1 (en) * | 2011-06-17 | 2014-06-19 | Sma Solar Technology Ag | Inverter with monitoring of the moisture state and method for operating an inverter |
| CN106014953A (en) * | 2016-07-25 | 2016-10-12 | 浙江天赐新能源科技有限公司 | Photovoltaic pump controller with automatic preheating function and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202006008792U1 (en) * | 2006-06-01 | 2007-10-04 | Diehl Ako Stiftung & Co. Kg | Solar inverters |
| CN102468776A (en) * | 2010-10-29 | 2012-05-23 | 永济新时速电机电器有限责任公司 | Inverter used in low temperature environment and photovoltaic system |
| CN202453756U (en) * | 2012-03-02 | 2012-09-26 | 江苏宏宝电子有限公司 | Photovoltaic grid-connected inverter inside heating system |
| CN202586370U (en) * | 2012-04-10 | 2012-12-05 | 广东明阳龙源电力电子有限公司 | Photovoltaic grid-connected inverter control system |
| CN202937479U (en) * | 2012-12-05 | 2013-05-15 | 广东志成冠军集团有限公司 | Outdoor automatic air supply system |
-
2013
- 2013-06-06 CN CN201310223988.3A patent/CN103257661B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202006008792U1 (en) * | 2006-06-01 | 2007-10-04 | Diehl Ako Stiftung & Co. Kg | Solar inverters |
| CN102468776A (en) * | 2010-10-29 | 2012-05-23 | 永济新时速电机电器有限责任公司 | Inverter used in low temperature environment and photovoltaic system |
| CN202453756U (en) * | 2012-03-02 | 2012-09-26 | 江苏宏宝电子有限公司 | Photovoltaic grid-connected inverter inside heating system |
| CN202586370U (en) * | 2012-04-10 | 2012-12-05 | 广东明阳龙源电力电子有限公司 | Photovoltaic grid-connected inverter control system |
| CN202937479U (en) * | 2012-12-05 | 2013-05-15 | 广东志成冠军集团有限公司 | Outdoor automatic air supply system |
Non-Patent Citations (1)
| Title |
|---|
| 郑颉;: "光伏发电逆变系统的设计与实现", 《中国优秀硕士学位论文全文数据库电子期刊》, 1 March 2011 (2011-03-01) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140166635A1 (en) * | 2011-06-17 | 2014-06-19 | Sma Solar Technology Ag | Inverter with monitoring of the moisture state and method for operating an inverter |
| US9351342B2 (en) * | 2011-06-17 | 2016-05-24 | Sma Solar Technology Ag | Inverter with monitoring of the moisture state and method for operating an inverter |
| CN106014953A (en) * | 2016-07-25 | 2016-10-12 | 浙江天赐新能源科技有限公司 | Photovoltaic pump controller with automatic preheating function and control method |
| CN106014953B (en) * | 2016-07-25 | 2017-11-10 | 浙江天赐新能源科技有限公司 | The photovoltaic water pump controller and control method of automatic preheating |
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Address after: 214174 Jiangsu Province Economic Development Zone, Huishan wind power science and Technology Industrial Park, wind energy road, No. 1 standard factory building Patentee after: SINENG ELECTRIC Co.,Ltd. Address before: 214174 Jiangsu Province Economic Development Zone, Huishan wind power science and Technology Industrial Park, wind energy road, No. 1 standard factory building Patentee before: Top energy Electric Co.,Ltd. |
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Address after: 214174 Jiangsu Province Economic Development Zone, Huishan wind power science and Technology Industrial Park, wind energy road, No. 1 standard factory building Patentee after: Top energy Electric Co.,Ltd. Address before: 214174 No. 1 standard building, wind power road, Huishan Economic Development Zone, Huishan District, Jiangsu, Wuxi Patentee before: WUXI SINENG NEW ENERGY CO.,LTD. |