CN202550291U - Contactor module and photovoltaic grid connection inversion device - Google Patents
Contactor module and photovoltaic grid connection inversion device Download PDFInfo
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- 229910052802 copper Inorganic materials 0.000 claims abstract description 74
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 description 6
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
Description
技术领域 technical field
本实用新型属于光伏发电技术领域,具体涉及一种接触器模块以及使用该接触器模块的光伏并网逆变装置。The utility model belongs to the technical field of photovoltaic power generation, and in particular relates to a contactor module and a photovoltaic grid-connected inverter device using the contactor module.
背景技术 Background technique
太阳能以其安全可靠、无噪声、无污染、不受地域制约、故障率低、维护简便等优点广泛应用于社会生活的各个领域,特别是应用于光伏并网电站系统。Solar energy is widely used in various fields of social life, especially in photovoltaic grid-connected power station systems, due to its advantages of safety and reliability, no noise, no pollution, no geographical constraints, low failure rate, and easy maintenance.
大功率光伏并网逆变器是光伏电站的核心设备。其包括并网逆变器、交流接触器等多种器件。在光伏并网逆变装置中,并网逆变器的输入端与光伏阵列的输出端相连接,光伏阵列中产生的直流电在并网逆变器中或者进一步经过升压变压器转换成符合电网要求的交流电,交流电通过与并网逆变器输出端连接的交流接触器直接接入电网。High-power photovoltaic grid-connected inverter is the core equipment of photovoltaic power station. It includes grid-connected inverters, AC contactors and other devices. In the photovoltaic grid-connected inverter device, the input end of the grid-connected inverter is connected to the output end of the photovoltaic array, and the direct current generated in the photovoltaic array is converted into a grid-connected inverter or further through a step-up transformer to meet the requirements of the grid. The AC power is directly connected to the grid through the AC contactor connected to the output end of the grid-connected inverter.
目前,在光伏并网逆变装置中,输出交流电的交流接触器一般采用具有三路接触开关的交流接触器,即该交流接触器分别具有三路进线端和三路出线端。使用上述结构的交流接触器的进线端子和出线端子接线较为简单,无需提前对进线端子或出线端子先进行组合;但是,该交流接触器同时也存在各支路的均流特性较差的缺点,可能导致某个支路中的逆变器件因电流过大而损坏,而且交流接触器的重量相对较重,导致其安装和后期维护均较困难;此外,由于大功率并网逆变系统对于接触器的耐压和每支路的过电流等级要求都比较高,所以接触器的选型和其他配合器件的采购相对较难、成本也较高。从而,相应的导致大功率光伏并网逆变装置的体积和重量都相对较大,导致逆变装置的搬运、安装及逆变装置机房的建设均较困难,所以,如何尽量减少并网逆变装置的体积和重量,同时降低逆变装置的成本成为亟待解决的问题。At present, in photovoltaic grid-connected inverter devices, the AC contactor for outputting AC power generally adopts an AC contactor with three-way contact switches, that is, the AC contactor has three input terminals and three output terminals respectively. The wiring of the incoming and outgoing terminals of the AC contactor using the above structure is relatively simple, and there is no need to combine the incoming or outgoing terminals in advance; however, the AC contactor also has the disadvantage of poor current sharing characteristics of each branch. The disadvantage is that the inverter device in a certain branch may be damaged due to excessive current, and the weight of the AC contactor is relatively heavy, which makes its installation and subsequent maintenance difficult; in addition, due to the high-power grid-connected inverter system The requirements for the withstand voltage of the contactor and the overcurrent level of each branch are relatively high, so the selection of the contactor and the procurement of other matching components are relatively difficult and costly. As a result, the volume and weight of the high-power photovoltaic grid-connected inverter are relatively large, which makes it difficult to carry and install the inverter and build the inverter machine room. Therefore, how to minimize the grid-connected inverter The size and weight of the device, while reducing the cost of the inverter device has become an urgent problem to be solved.
实用新型内容 Utility model content
本实用新型所要解决的技术问题是针对现有技术所存在的上述不足,提供一种接触器模块以及光伏并网逆变装置,该接触器模块能够有效提高各支路的均流性,重量轻,且成本较低。The technical problem to be solved by the utility model is to provide a contactor module and a photovoltaic grid-connected inverter device for the above-mentioned deficiencies in the prior art. , and the cost is lower.
解决本实用新型技术问题所采用的技术方案是该接触器模块包括固定板和设于所述固定板上的接触器,其中,所述接触器采用多组,且接触器的组数为三的整数倍,所述多组接触器并排安装在固定板上,每组接触器中,所述单个接触器的进线端通过进线铜排引出形成进线端子,其出线端通过出线铜排引出形成出线端子。The technical solution adopted to solve the technical problem of the utility model is that the contactor module includes a fixed plate and a contactor arranged on the fixed plate, wherein the contactor adopts multiple groups, and the number of groups of contactors is three Integer multiples, the multiple groups of contactors are installed side by side on the fixed plate. In each group of contactors, the incoming wire end of the single contactor is drawn out through the incoming wire copper bar to form an incoming wire terminal, and its outgoing wire end is drawn out through the outgoing wire copper bar. Form the outgoing terminal.
优选的是,每组接触器中,单个接触器中包括有多个进线端和多个出线端,所述多个进线端各通过一个进线铜排引出而形成多个进线端子;所述多个出线端通过一个出线铜排并联引出而共同形成一个共同的出线端子,即所述多个进线端各与一个进线铜排连接,所述多个出线端分别与同一个出线铜排连接在一起。通过这种连接方式,可以有效提高电路各支路的均流特性。Preferably, in each group of contactors, a single contactor includes multiple incoming wire ends and multiple outgoing wire ends, and each of the multiple incoming wire ends is led out through an incoming wire copper bar to form multiple incoming wire terminals; The plurality of outlet terminals are led out in parallel through an outlet copper bar to form a common outlet terminal, that is, each of the plurality of inlet terminals is connected to an inlet copper bar, and the plurality of outlet terminals are respectively connected to the same outlet terminal. The copper bars are connected together. Through this connection mode, the current sharing characteristics of each branch of the circuit can be effectively improved.
进一步优选的是,所述每组接触器中包括有一个接触器,该接触器包括三个进线端和三个出线端,与所述每个进线端所连接的进线铜排的形状为条状,所述出线铜排的形状为“山”字型,所述“山”字型出线铜排的一端包括有三个分支,所述三个分支分别与接触器的三个出线端连接。这样,可使得所述该组接触器中该接触器的三个出线端通过一个“山”字型出线铜排并联连接在一起,每一个“山”字型出线铜排构成该接触器模块的一个出线端子。Further preferably, each group of contactors includes a contactor, the contactor includes three incoming wire ends and three outgoing wire ends, and the shape of the incoming copper bar connected to each incoming wire end is The shape of the outgoing copper bar is a "mountain" shape, and one end of the "mountain"-shaped outgoing copper bar includes three branches, and the three branches are respectively connected to the three outgoing terminals of the contactor . In this way, the three outlet ends of the contactor in the group of contactors can be connected in parallel through a "mountain"-shaped outlet copper bar, and each "mountain"-shaped outlet copper bar constitutes the contactor module. One outgoing terminal.
或者,所述每组接触器中包括有两个或多个接触器,其中每个接触器包括三个进线端和三个出线端,与所述每个进线端所连接的进线铜排的形状为条状,所述出线铜排的形状为耙型,该耙型出线铜排的一端包括有多个分支,所述多个分支与每组接触器中两个或多个接触器中的各个出线端分别连接。这样,可使得该组接触器中的两个或多个接触器的所有出线端通过耙型出线铜排并联连接在一起,每一个耙型出线铜排构成接触器模块的一个出线端子。由于该接触器模块中的连接铜排能够从接触器中充分露出,从而能够方便与其他器件的连接。Alternatively, each group of contactors includes two or more contactors, wherein each contactor includes three incoming wire ends and three outgoing wire ends, and the incoming wire copper connected to each incoming wire end The shape of the row is a strip, and the shape of the outgoing copper bar is a rake shape. One end of the rake-shaped outgoing copper bar includes a plurality of branches, and the plurality of branches are connected to two or more contactors in each group of contactors. The outlets in each terminal are connected separately. In this way, all outlet ends of two or more contactors in the group of contactors can be connected in parallel through rake-shaped outlet copper bars, and each rake-shaped outlet copper bar constitutes an outlet terminal of the contactor module. Since the connecting copper bars in the contactor module can be fully exposed from the contactor, the connection with other devices can be facilitated.
优选的是,所述出线铜排上设有均流孔,所述出线铜排上的均流孔设置在“山”字型或耙型出线铜排的中部与所述分支对应的位置,其形状为长条形,且其长度方向与所述分支的排列方向相同。Preferably, the outlet copper bar is provided with a flow equalization hole, and the flow equalization hole on the outlet copper bar is set at a position corresponding to the branch in the middle of the "mountain"-shaped or rake-shaped outlet copper bar, which The shape is strip-shaped, and its length direction is the same as the arrangement direction of the branches.
优选的是,该接触器模块中还包括有支撑板,所述各个接触器固设在所述支撑板上,所述支撑板设置在所述固定板上。在接触器与固定板之间设置支撑板可以增大各个接触器上的连接铜排(进线铜排或出线铜排)与固定板之间的安全距离,提供接触器模块的安全性。Preferably, the contactor module further includes a supporting plate, the contactors are fixed on the supporting plate, and the supporting plate is arranged on the fixing plate. Arranging a support plate between the contactor and the fixing plate can increase the safety distance between the connecting copper bars (incoming copper bars or outgoing line copper bars) on each contactor and the fixing plate, thereby improving the safety of the contactor module.
优选所述支撑板为方形,支撑板的长度大于或等于多个接触器的总宽度,所述多个接触器分别通过螺栓或螺钉固定在支撑板上。Preferably, the support plate is square, and the length of the support plate is greater than or equal to the total width of the plurality of contactors, and the plurality of contactors are respectively fixed on the support plate by bolts or screws.
进一步优选的是,所述支撑板采用覆铝锌板制成,所述支撑板的厚度大于或等于2.5mm。Further preferably, the support plate is made of aluminum-zinc clad plate, and the thickness of the support plate is greater than or equal to 2.5 mm.
优选的是,所述固定板采用覆铝锌板制成,所述固定板的厚度大于或等于2.5mm。Preferably, the fixing plate is made of aluminum-zinc clad plate, and the thickness of the fixing plate is greater than or equal to 2.5mm.
一种光伏并网逆变装置,包括接触器模块,所述接触器模块采用上述接触器模块。A photovoltaic grid-connected inverter device includes a contactor module, and the contactor module adopts the above-mentioned contactor module.
优选的是,所述装置还包括有柜体,所述接触器模块安装在所述柜体的内壁上。Preferably, the device further includes a cabinet, and the contactor module is installed on an inner wall of the cabinet.
本实用新型通过采用成本较低的多个接触器并联连接即可得到满足较高过电流要求的接触器模块,该接触器模块成本较低,电路均流性较好。The utility model can obtain a contactor module satisfying higher overcurrent requirements by adopting a plurality of lower-cost contactors connected in parallel. The contactor module has lower cost and better circuit current equalization.
本实用新型接触器模块的有益效果如下:The beneficial effects of the utility model contactor module are as follows:
1.由于接触器模块由多个独立的接触器并联连接形成,且接触器模块的进线端和出线端均采用充分露出的进线铜排和出线铜排引出,连接方式简单易行,而且便于接触器模块的搬运、安装和后期维护,同时也方便接触器模块与其他器件的连接;1. Since the contactor module is formed by parallel connection of multiple independent contactors, and the incoming and outgoing terminals of the contactor module are led out by fully exposed incoming and outgoing copper bars, the connection method is simple and easy, and It is convenient for the handling, installation and post-maintenance of the contactor module, and it is also convenient for the connection between the contactor module and other devices;
2.由于接触器模块采用多个独立的接触器并联连接形成,所以对独立的接触器的电气参数(主要是过电流参数)要求不高,使得该接触器模块通过采用成本较低容量较小的独立接触器即可满足较高过电流的要求,从而使得接触器模块的成本大大降低;2. Since the contactor module is formed by connecting multiple independent contactors in parallel, the requirements for the electrical parameters (mainly overcurrent parameters) of the independent contactors are not high, making the contactor module lower in cost and smaller in capacity The independent contactor can meet the requirements of higher overcurrent, so that the cost of the contactor module is greatly reduced;
3.接触器模块中各接触器的进线端和出线端采用进线铜排和出线铜排引出,有效地提高了各支路的均流特性;3. The incoming and outgoing wires of each contactor in the contactor module are led out by incoming and outgoing copper bars, which effectively improves the current sharing characteristics of each branch;
4.使用该接触器模块后,使得在大功率光伏并网逆变装置中,要达到同样的电气参数,其中所使用的接触器模块可以由多个独立的接触器并联形成,该多个独立的接触器体积(为原接触器的一半)、重量(比如5kg)可较现有的接触器的体积和重量(比如20kg)大大减小。4. After using the contactor module, it is necessary to achieve the same electrical parameters in the high-power photovoltaic grid-connected inverter device. The contactor module used can be formed by parallel connection of multiple independent contactors. The volume (half of the original contactor) and weight (such as 5kg) of the new contactor can be greatly reduced compared with the volume and weight of the existing contactor (such as 20kg).
附图说明 Description of drawings
图1为本实用新型实施例1中接触器模块的结构示意图;Fig. 1 is a schematic structural diagram of a contactor module in Embodiment 1 of the utility model;
图2为图1中接触器模块的立体结构图;Fig. 2 is a three-dimensional structural diagram of the contactor module in Fig. 1;
图3为本实用新型实施例2中接触器模块的结构示意图。Fig. 3 is a schematic structural diagram of the contactor module in
图中:1-第一接触器;2-第二接触器;3-第三接触器;4-支撑板;5-固定板;6-进线端;7-进线端口;8-进线铜排;9-出线端;10-出线端口;11-出线铜排;12-均流孔。In the figure: 1-first contactor; 2-second contactor; 3-third contactor; 4-support plate; 5-fixing plate; 6-incoming line end; 7-incoming line port; Copper bar; 9-outlet end; 10-outlet port; 11-outlet copper bar; 12-flow equalizing hole.
具体实施方式 Detailed ways
为使本领域技术人员更好地理解本实用新型的技术方案,下面结合附图和具体实施方式对本实用新型接触器模块和光伏并网逆变装置作进一步详细描述。In order to enable those skilled in the art to better understand the technical solution of the utility model, the contactor module and the photovoltaic grid-connected inverter device of the utility model will be further described in detail below in conjunction with the drawings and specific embodiments.
一种接触器模块,包括固定板和设于所述固定板上的接触器,所述接触器采用多组,所述接触器的组数为三的整数倍,所述多组接触器并排安装在固定板上,每组接触器中,所述单个接触器的进线端通过进线铜排引出形成进线端子,其出线端通过出线铜排引出形成出线端子。A contactor module, comprising a fixed plate and contactors arranged on the fixed plate, the contactors adopt multiple groups, the number of groups of the contactors is an integer multiple of three, and the multiple groups of contactors are installed side by side On the fixed plate, in each group of contactors, the incoming wire end of the single contactor is drawn out through the incoming wire copper bar to form an incoming wire terminal, and its outgoing wire end is drawn out through the outgoing wire copper bar to form an outgoing wire terminal.
实施例1:Example 1:
如图1、2所示,本实施例中,该接触器模块包括固定板5、支撑板4以及接触器。As shown in FIGS. 1 and 2 , in this embodiment, the contactor module includes a fixing plate 5 , a supporting
本实施例中,所述接触器采用三组。所述每组接触器包括一个接触器,即本实施例中共包括有三个接触器,即第一接触器1、第二接触器2和第三接触器3,所述三个接触器通过并联连接方式连接。所述三个接触器的型号相同,均采用三路接触开关的交流接触器,即该交流接触器分别具有三路进线端和三路出线端,每个接触器分别具有三个进线端6和三个出线端9。In this embodiment, three groups of contactors are used. Each group of contactors includes one contactor, that is, there are three contactors in this embodiment, namely the first contactor 1, the
所述每个接触器中三个进线端6分别通过三个进线铜排8引出而形成三个进线端子,所述三个出线端9通过一个出线铜排11并联后引出而形成一个共同的出线端子。The three
本实施例中,与所述每个进线端6所连接的单个进线铜排8的形状为条状,所述进线铜排8上设有进线端口7,通过所述进线端口7可与逆变器的输出端连接。图1、2中,进线铜排8上从上至下依次(按图中排列顺序)设置有电缆接线孔、绝缘柱安装孔、数据采集孔,以方便接线与电流/电压数据测量。In this embodiment, the shape of a single
本实施例中,所述出线铜排11的形状为“山”字型,所述“山”字型出线铜排的一端包括有三个分支,所述三个分支分别与单个接触器的三个出线端9连接。这样,可使得单个接触器中的三个出线端9通过一个“山”字型出线铜排并联连接在一起,每一个“山”字型出线铜排构成该接触器模块的一个出线端子,从而使三个接触器形成三个出线端子。即第一接触器1的三个出线端用“山”字型铜排进行连接形成接触器模块的第一个出线端子,第二接触器2的三个出线端子用“山”字型铜排进行连接形成接触器模块的第二个出线端子,第三接触器3的三个出线端子用“山”字型铜排进行连接形成接触器模块的第三个出线端子,该三个出线端子作为该接触器模块的交流输出端连接接至断路器后并入电网。其中,出线铜排11上还设有长条形的均流孔12,以分散电流的流向。具体的,出线铜排11上的均流孔12设置在“山”字型出线铜排的中部与所述三个分支对应的位置,该均流孔12的长度方向与所述三个分支的排列方向相同。In this embodiment, the shape of the
由电路基础知识可知,在电路中流入电流一定的情况下,当接触器的进线端较少时,分配到每一支路上的电流会相应较大,导致各支路电流之间出现较大差异;而并联接触器的进线端越多,分配到每一支路上的电流就会相应越小,使得各支路电流之间的差异相对较小,所以相比之下,接触器的进线端越多对于各支路的均流效果越好。另外,出线铜排11上还开有均流孔12,因此,本实施例中接触器模块中进线铜排和出线铜排的连接方式,有效地提高了各支路的均流特性。并且,在上述这种连接方式下,可以使接触器模块中的连接铜排(包括进线铜排和出线铜排)充分露出,以方便接触器模块的安装以及接触器模块与光伏并网逆变装置中的其他器件的连接。It can be seen from the basic knowledge of the circuit that when the current flowing into the circuit is constant, when there are fewer incoming terminals of the contactor, the current distributed to each branch will be correspondingly larger, resulting in a larger current between each branch. The difference; while the more incoming terminals of the parallel contactor, the smaller the current distributed to each branch, making the difference between the currents of each branch relatively small, so in comparison, the contactor's incoming The more wire ends, the better the current sharing effect of each branch. In addition, there are
所述三个接触器并排安装在支撑板4上。其中,所述支撑板4为方形,支撑板4的长度大于或等于上述三个接触器的总宽度,所述支撑板4的高度大于或等于单个接触器的高度,所述支撑板4与所述接触器的背面采用螺栓或螺钉固定在一起。其中,为保证支撑强度,支撑板4采用覆铝锌板制成,支撑板的厚度大于或等于2.5mm。所述支撑板4设置在固定板5上。The three contactors are installed side by side on the
在上述这种安装方式下,由于接触器模块的进线端子和出线端子相对于单个的接触器而言仍设置在接触器的正面,因此当将所述接触器模块安装在光伏并网逆变装置的柜体中后,能使进线端子和出线端子充分露出,从而方便接触器模块的安装以及与光伏并网逆变装置中的其他器件的连接。In the above-mentioned installation method, since the incoming and outgoing terminals of the contactor module are still arranged on the front of the contactor compared to a single contactor, when the contactor module is installed After being placed in the cabinet of the device, the incoming and outgoing terminals can be fully exposed, so as to facilitate the installation of the contactor module and the connection with other devices in the photovoltaic grid-connected inverter device.
一种采用本实施例中接触器模块的光伏并网逆变装置,包括柜体,所述接触器模块通过固定板5安装在光伏并网逆变装置的柜体内壁上。所述固定板5的高度和长度均分别大于支撑板4的高度和长度,支撑板4与固定板5通过螺栓或螺钉固定连接在一起,固定板5通过螺栓或螺钉固定在逆变装置的柜体内壁上。其中,固定板5采用覆铝锌板制成,所述固定板5的厚度大于或等于2.5mm。在这种安装方式下,支撑板4可以增大接触器模块上的进线铜排和出线铜排与固定板5之间的电气间隙(即安全距离),提高接触器模块的安全性。A photovoltaic grid-connected inverter device using the contactor module in this embodiment includes a cabinet body, and the contactor module is installed on the inner wall of the cabinet of the photovoltaic grid-connected inverter device through a fixing plate 5 . The height and length of the fixing plate 5 are respectively greater than the height and length of the supporting
设单个接触器的输出电流为I单,则在本实施例中,接触器模块的输出电流I组=3*I单,接触器模块相应的过电流承受能力也为单个接触器的3倍。Assuming that the output current of a single contactor is I unit , then in this embodiment, the output current I group of the contactor module=3*I unit , and the corresponding overcurrent withstand capacity of the contactor module is also 3 times that of a single contactor.
实施例2:Example 2:
如图2所示,本实施例中,接触器仍然采用三组,本实施例与实施例1的区别在于:第一,每组接触器包括两个交流接触器,即本实施例中接触器模块总共包括六个接触器,所述六个接触器并排安装在支撑板4上;第二,每组接触器中出线铜排11的形状为耙型。As shown in Figure 2, in this embodiment, three groups of contactors are still used. The difference between this embodiment and Embodiment 1 is: first, each group of contactors includes two AC contactors, that is, the contactors in this embodiment The module includes a total of six contactors, and the six contactors are installed side by side on the
该耙型出线铜排的一端包括有六个分支,所述六个分支与每组接触器中的两个接触器中的各个出线端分别连接。每组接触器中所述相邻两个接触器中的六个出线端通过所述耙型出线铜排(可以视为多个“山”字型铜排的连接)并联连接在一起。One end of the rake-shaped outlet copper bar includes six branches, and the six branches are respectively connected to each outlet end of two contactors in each group of contactors. The six outlet ends of the two adjacent contactors in each group of contactors are connected together in parallel through the rake-shaped outlet copper bars (which can be regarded as the connection of multiple "mountain"-shaped copper bars).
因此,该接触器模块中的十八个进线端6分别通过十八个条形铜排连接引出形成十八个进线端子,所形成的进线端子与逆变器的输出端连接;该接触器模块中每组接触器中的六个出线端9采用耙型出线铜排并联形成三个出线端子,该三个出线端子作为接触器模块的交流输出端连接接至断路器后并入电网。Therefore, the eighteen
本实施例中,接触器模块中的进线铜排和出线铜排采用上述连接方式,使得各支路的均流特性优于实施例1中各支路的均流特性。In this embodiment, the above-mentioned connection method is adopted for the incoming and outgoing copper bars in the contactor module, so that the current sharing characteristics of each branch are better than those of each branch in Embodiment 1.
设单个接触器的输出电流为I单,则在本实施例中,接触器模块的输出电流I组=6*I单,接触器模块相应的过电流承受能力也为单个接触器的6倍。Assuming that the output current of a single contactor is I unit, then in this embodiment, the output current I group of the contactor module=6*I unit , and the corresponding overcurrent withstand capacity of the contactor module is also 6 times that of a single contactor.
本实施例中用于支撑所述接触器模块的支撑板4和用于固定所述接触器模块的固定板5与所述接触器模块的尺寸相适,其具体尺寸可类比实施例1中支撑板4和固定板5与实施例1中的接触器模块的尺寸关系进行设置;本实施例中接触器模块的其他结构以及使用都与实施例1相同,这里不再赘述。The
这里应该理解的是,所述接触器模块中接触器的个数并不限定于实施例1中的三个或实施例2中的六个,在实际应用中可以根据单个接触器的成本与容量以及光伏并网逆变装置中逆变器交流输出端的过电流要求进行设计,当接触器模块中的接触器个数为三的N(N为自然数)倍时,耙型出线铜排中的分支为3*N个。It should be understood here that the number of contactors in the contactor module is not limited to three in Embodiment 1 or six in
可以理解的是,以上实施方式仅仅是为了说明本实用新型的原理而采用的示例性实施方式,然而本实用新型并不局限于此。对于本领域内的普通技术人员而言,在不脱离本实用新型的精神和实质的情况下,可以做出各种变型和改进,这些变型和改进也视为本实用新型的保护范围。It can be understood that, the above embodiments are only exemplary embodiments adopted to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these variations and improvements are also regarded as the protection scope of the present utility model.
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CN104319209A (en) * | 2014-10-27 | 2015-01-28 | 江苏省电力公司洪泽县供电公司 | High-safety single column fully insulated line connector |
CN108574418A (en) * | 2018-04-26 | 2018-09-25 | 中车青岛四方车辆研究所有限公司 | Draw inverter |
US11456688B2 (en) | 2020-11-30 | 2022-09-27 | General Electric Renovables Espana, S.L. | Systems and methods for operating a power generating asset |
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CN104319209A (en) * | 2014-10-27 | 2015-01-28 | 江苏省电力公司洪泽县供电公司 | High-safety single column fully insulated line connector |
CN108574418A (en) * | 2018-04-26 | 2018-09-25 | 中车青岛四方车辆研究所有限公司 | Draw inverter |
US11456688B2 (en) | 2020-11-30 | 2022-09-27 | General Electric Renovables Espana, S.L. | Systems and methods for operating a power generating asset |
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