技术领域technical field
本发明涉及太阳能发电领域，具体地，涉及适用于太阳能发电装置的能量优化装置。The invention relates to the field of solar power generation, in particular to an energy optimization device suitable for a solar power generation device.
背景技术Background technique
近几年中，以风能和太阳能为主的可再生能源发电系统在世界范围得到越来越多的应用。对于太阳能并网发电系统来说，除了目前占主流的集中式大功率太阳能电站外，分布式太阳能并网发电系统由于其能优化太阳能电池板的工作状态，在多数情况下可以提高系统的年发电量。分布式发电最重要的一个特征是每块太阳能电池板或者每串太阳能电池板能够工作在其各自最大功率点。目前，以太阳能微逆变器和太阳能最大功率优化器为代表的产品能够优化每块太阳能电池板的输出；以串型逆变器（string inverter）和多串型逆变器（multi-string inverter）为代表的产品能够优化每一串太阳能电池板的功率输出。现有的这些方案的一个显著特征是太阳能电池板通过一个DC/DC变换器工作在最大功率点，太阳能电池板输出的所有功率需要经过该DC/DC变换器，然后再送给负载。显然，该DC/DC变换器的功率等级需要与之连接的太阳能电池板匹配且由于太阳能电池板输出的所有能量都要经过该变换器处理，这其中产生较大的能量损失难以避免。In recent years, renewable energy power generation systems based on wind energy and solar energy have been used more and more in the world. For solar grid-connected power generation systems, in addition to the centralized high-power solar power plants that currently dominate the mainstream, distributed solar grid-connected power generation systems can improve the annual power generation of the system in most cases because they can optimize the working status of solar panels. quantity. One of the most important characteristics of distributed generation is that each solar panel or each string of solar panels can work at its respective maximum power point. At present, products represented by solar micro-inverters and solar maximum power optimizers can optimize the output of each solar panel; ) represents products that can optimize the power output of each string of solar panels. A notable feature of these existing solutions is that the solar panel works at the maximum power point through a DC/DC converter, and all the power output by the solar panel needs to pass through the DC/DC converter before being sent to the load. Obviously, the power level of the DC/DC converter needs to be matched with the solar panel connected to it, and since all the energy output by the solar panel must be processed by the converter, a large energy loss is unavoidable.
因为分布式太阳能发电比集中式发电系统更高效，适用于在复杂地理环境中工作，比如屋顶发电系统。由于房屋周围的树木等有可能造成发电系统中的某些太阳能电池板容易受到遮挡，抑或为了避免遮挡，某些太阳能电池板的安装位置会有所不同。在这种情况下，分布式太阳能发电系统由于能够对每块太阳能电池板或者每串太阳能电池板的工作状态进行优化，在实际中能够发出更多的电力。Because distributed solar power generation is more efficient than centralized power generation systems, it is suitable for working in complex geographical environments, such as rooftop power generation systems. Some solar panels in the power generation system may be easily shaded due to trees around the house, or in order to avoid shading, the installation positions of some solar panels will be different. In this case, the distributed solar power generation system can actually generate more electricity because it can optimize the working state of each solar panel or each string of solar panels.
除了太阳能微逆变器以外，目前主要的分布式太阳能发电技术方案有两种：太阳能最大功率优化器和串型/多串型太阳能逆变器。如图1所示为带有太阳能最大功率优化器的发电系统结构图。每块太阳能电池板各自带有一个基于DC/DC变换器的最大功率优化器。该DC/DC变换器通过调节自身的运行状态，比如，调节变换器内部功率开关的占空比，使得太阳能电池板的输出功率保证在最大功率点。同时，从图1可以看出，太阳能电池板产生的能量需要全部通过该DC/DC变换器处理。DC/DC变换器的输出端以串联的形式连接在一起，从而得到一个较高的串联输出电压，可以直接接负载或者连接后级的逆变器，最终把能量输送到电网。如图2所示为串型和多串型太阳能逆变器系统框图。这两种逆变器的基本特点是每串太阳能电池板通过一个DC/DC变换器，实现最大功率输出；输出的全部能量需要经过该DC/DC变换器处理。一个或多个DC/DC变换器的输出可以并联，然后接负载或者接后级的逆变器，最终把能量输送到电网。In addition to solar micro-inverters, there are currently two main distributed solar power generation technology solutions: solar maximum power optimizers and string/multi-string solar inverters. As shown in Figure 1, it is a structural diagram of a power generation system with a solar maximum power optimizer. Each solar panel has its own maximum power optimizer based on a DC/DC converter. The DC/DC converter adjusts its own operating state, for example, adjusts the duty ratio of the internal power switch of the converter, so that the output power of the solar panel is guaranteed to be at the maximum power point. At the same time, it can be seen from Figure 1 that all the energy generated by the solar panel needs to be processed by the DC/DC converter. The output ends of the DC/DC converter are connected together in series to obtain a higher series output voltage, which can be directly connected to the load or connected to the inverter of the subsequent stage, and finally the energy is delivered to the grid. Figure 2 shows the block diagram of string and multi-string solar inverter systems. The basic feature of these two inverters is that each string of solar panels passes through a DC/DC converter to achieve maximum power output; all output energy needs to be processed by the DC/DC converter. The output of one or more DC/DC converters can be connected in parallel, and then connected to the load or the inverter of the subsequent stage, and finally the energy is delivered to the grid.
综上所述，在实现本发明的过程中，发明人发现现有技术中至少存在的缺陷为：因为DC/DC变换器对太阳能电池板输出的全部能量进行变换，且变换效率不可能为100%，因此不可避免的会造成较大能量的损失。To sum up, in the process of realizing the present invention, the inventor found that at least the defects in the prior art are: because the DC/DC converter converts all the energy output by the solar panel, and the conversion efficiency cannot be 100%. %, so it will inevitably cause a large energy loss.
发明内容Contents of the invention
本发明的目的在于，针对上述问题，提出一种适用于太阳能发电装置的能量优化装置，以实现降低能量损失的优点。The purpose of the present invention is to propose an energy optimization device suitable for solar power generation devices to achieve the advantage of reducing energy loss in view of the above problems.
为实现上述目的，本发明采用的技术方案是：In order to achieve the above object, the technical scheme adopted in the present invention is:
一种适用于太阳能发电装置的能量优化装置，包括太阳能电池板、DC/DC变换器，所述DC/DC变换器的输入端电连接在太阳能电池板上，其输出端的阳极输出给负载或逆变器，其阴极串联在太阳能电池板的阳极上，所述DC/DC变换器和太阳能电池板形成串联电路为负载或逆变器提供电源。An energy optimization device suitable for solar power generation devices, including a solar panel and a DC/DC converter, the input end of the DC/DC converter is electrically connected to the solar panel, and the anode of the output end is output to a load or inverter The cathode of the inverter is connected in series with the anode of the solar panel, and the DC/DC converter and the solar panel form a series circuit to provide power for the load or the inverter.
根据本发明的优选实施例，其中装置中还设置有通信监控终端，所述通信监控终端和DC/DC变换器建立双向通信。According to a preferred embodiment of the present invention, the device is further provided with a communication monitoring terminal, and the communication monitoring terminal establishes two-way communication with the DC/DC converter.
另一种适用于太阳能发电装置的能量优化装置，包括N个太阳能电池板和N个DC/DC变换器，所述每个太阳能电池板单独与每个DC/DC变换器串联在一起；N个太阳能电池板和DC/DC变换器串联的电路并联在一起，组成电源电路为负载或逆变器提供电源。Another kind of energy optimization device suitable for solar power generation devices includes N solar panels and N DC/DC converters, and each of the solar panels is connected in series with each DC/DC converter; N The solar panel and the DC/DC converter series circuit are connected in parallel to form a power circuit to provide power for the load or the inverter.
根据本发明的优选实施例，装置中还设置有通信监控终端，所述通信监控终端和N个DC/DC变换器之间建立双向通信。所述N大于等于2。According to a preferred embodiment of the present invention, a communication monitoring terminal is also provided in the device, and two-way communication is established between the communication monitoring terminal and the N DC/DC converters. The N is greater than or equal to 2.
再一种适用于太阳能发电装置的能量优化装置，包括N个太阳能电池板和M个DC/DC变换器，所述每N/M个太阳能电池板上串联一个DC/DC变换器；M个由太阳能电池板和DC/DC变换器串联的电路并联在一起，组成电源电路为负载或逆变器提供电源。Another kind of energy optimization device suitable for solar power generation devices includes N solar panels and M DC/DC converters, and a DC/DC converter is connected in series on each N/M solar panels; M consists of The solar panel and the DC/DC converter series circuit are connected in parallel to form a power circuit to provide power for the load or the inverter.
根据本发明的优选实施例，所述N大于M，并且所述M大于等于2。According to a preferred embodiment of the present invention, the N is greater than M, and the M is greater than or equal to 2.
另一种适用于太阳能发电装置的能量优化装置，包括L个太阳能电池板和L个DC/DC变换器，所述每个太阳能电池板单独与每个DC/DC变换器串联在一起；L个太阳能电池板和DC/DC变换器串联的电路串联在一起，组成电源电路为负载或逆变器提供电源。Another kind of energy optimization device suitable for solar power generation devices includes L solar panels and L DC/DC converters, and each solar panel is connected in series with each DC/DC converter independently; L The solar panel and the DC/DC converter are connected in series to form a power circuit to provide power for the load or the inverter.
根据本发明的优选实施例，装置中还设置有通信监控终端，所述通信监控终端和L个DC/DC变换器之间建立双向通信。所述L大于等于2。According to a preferred embodiment of the present invention, a communication monitoring terminal is also provided in the device, and two-way communication is established between the communication monitoring terminal and the L DC/DC converters. Said L is greater than or equal to 2.
本发明的技术方案通过把DC/DC变换器和太阳能电池板电池板串联在一起共同为负载或逆变器提供电源，因DC/DC变换器只处理了太阳能电池板输出的小部分能量，而输出的大部分能量直接传递到了负载，从而能量损失极小；用来实现最大功率输出控制的DC/DC变换器的功率等级也可以远小于太阳能电池板的输出功率，从而减小了变换器的尺寸，体积和制造成本。The technical scheme of the present invention provides power for the load or inverter by connecting the DC/DC converter and the solar panel in series, because the DC/DC converter only handles a small part of the energy output by the solar panel, and the Most of the output energy is directly transferred to the load, so that the energy loss is extremely small; the power level of the DC/DC converter used to achieve maximum power output control can also be much smaller than the output power of the solar panel, thereby reducing the converter's size, volume and manufacturing cost.
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
附图说明Description of drawings
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:
图1为现有的太阳能发电装置的能量优化装置的系统框图；Fig. 1 is a system block diagram of an energy optimization device of an existing solar power generation device;
图2为现有的串联多个太阳能电池板的太阳能发电装置的能量优化装置的系统框图；Fig. 2 is a system block diagram of an energy optimization device of an existing solar power generation device connected in series with a plurality of solar panels;
图3为本发明实施例一所述的太阳能发电装置的能量优化装置的结构框图；3 is a structural block diagram of an energy optimization device of a solar power generation device according to Embodiment 1 of the present invention;
图4为本发明实施例二所述的太阳能发电装置的能量优化装置的结构框图；4 is a structural block diagram of an energy optimization device for a solar power generation device according to Embodiment 2 of the present invention;
图5为本发明实施例三所述的太阳能发电装置的能量优化装置的结构框图；5 is a structural block diagram of an energy optimization device for a solar power generation device according to Embodiment 3 of the present invention;
图6为本发明实施例四所述的太阳能发电装置的能量优化装置的结构框图；6 is a structural block diagram of an energy optimization device for a solar power generation device according to Embodiment 4 of the present invention;
图7为本发明实施例五所述的太阳能发电装置的能量优化装置具体应用的结构框图；Fig. 7 is a structural block diagram of the specific application of the energy optimization device of the solar power generation device described in Embodiment 5 of the present invention;
图8为本发明实施例六所述的太阳能发电装置的能量优化装置具体应用的结构框图；Fig. 8 is a structural block diagram of the specific application of the energy optimization device of the solar power generation device described in Embodiment 6 of the present invention;
图9为本发明实施例七所述的太阳能发电装置的能量优化装置具体应用的结构框图；Fig. 9 is a structural block diagram of the specific application of the energy optimization device of the solar power generation device described in Embodiment 7 of the present invention;
图10为本发明实施例八所述的太阳能发电装置的能量优化装置的结构框图。Fig. 10 is a structural block diagram of the energy optimization device of the solar power generation device according to the eighth embodiment of the present invention.
具体实施方式Detailed ways
以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
实施例一：Embodiment one:
如图3所示，一种适用于太阳能发电装置的能量优化装置，包括太阳能电池板、DC/DC变换器， DC/DC变换器的输入端连接在太阳能电池板上，其输出端的阳极输出给负载或逆变器，其阴极串联在太阳能电池板的阳极上， DC/DC变换器和太阳能电池板形成串联电路为负载或逆变器提供电源。另外装置中还设置有通信监控终端，通信监控终端和DC/DC变换器建立双向通信。DC/DC变换器的输入仍然为太阳能电池板；但是它的输出没有直接接负载或逆变器，而是与太阳能电池板的输出电压串联相加，共同为负载供电。假设太阳能电池板的电压为VPV，DC/DC变换器的输出电压为VDC/DC，负载或逆变器端的电压为VOUT，那么以下关系式（1）成立： (1) ， As shown in Figure 3, an energy optimization device suitable for solar power generation devices includes a solar panel and a DC/DC converter. The input end of the DC/DC converter is connected to the solar panel, and the anode of the output terminal is output to The cathode of the load or inverter is connected in series with the anode of the solar panel, and the DC/DC converter and the solar panel form a series circuit to provide power for the load or inverter. In addition, the device is also provided with a communication monitoring terminal, and the communication monitoring terminal establishes two-way communication with the DC/DC converter. The input of the DC/DC converter is still the solar panel; but its output is not directly connected to the load or the inverter, but is added in series with the output voltage of the solar panel to jointly supply power to the load. Assuming that the voltage of the solar panel is VPV , the output voltage of the DC/DC converter is VDC/DC , and the voltage at the load or inverter is VOUT , then the following relationship (1) holds true: (1) ,
假设流进负载或逆变器的直流电流为IOUT，且系统中能量的转换传输效率为100%，那么以下关于发电系统的功率表达式成立： （2） ， Assuming that the DC current flowing into the load or inverter is IOUT , and the conversion and transmission efficiency of energy in the system is 100%, then the following power expression for the power generation system holds true: (2) ,
对于该DC/DC变换器，它处理的功率为： （3） 。 For this DC/DC converter, the power it handles is: (3).
所以，该DC/DC变换器处理的功率与其输出的电压有关：其输出的电压越低，处理的功率越小。对于分布式发电场合，其输出电压一般只占VOUT电压的小部分。由于其只处理了一小部分功率，从根本上降低了能量转换过程中的损耗。所以，该DC/DC变换器的功率等级可以设计的比发电系统的功率等级小很多，它的尺寸，重量以及制造成本都得到极大的降低。图3中所示的该DC/DC变换器可以为任意的DC/DC变换器，唯一需要满足的要求是该DC/DC变换器允许其输出的（-）端与输入的（+）端相连，也就是允许该变换器的输出与太阳能电池板的输出串联，共同为负载或后级逆变器供电。Therefore, the power processed by the DC/DC converter is related to its output voltage: the lower the output voltage, the smaller the processed power. For distributed power generation occasions, its output voltage generally only accounts for a small part of the VOUT voltage. Because it only handles a small part of the power, the loss in the energy conversion process is fundamentally reduced. Therefore, the power level of the DC/DC converter can be designed to be much smaller than that of the power generation system, and its size, weight and manufacturing cost are greatly reduced. The DC/DC converter shown in Figure 3 can be any DC/DC converter, the only requirement that needs to be met is that the DC/DC converter allows its output (-) terminal to be connected to the input (+) terminal , which is to allow the output of the converter to be connected in series with the output of the solar panel to jointly supply power to the load or the rear inverter.
实施例二：Embodiment two:
图4为基于图3所示结构的一个扩展。多个图3所示的太阳能电池板和DC/DC变换器单元可以并联，然后给负载或逆变器供电。FIG. 4 is an extension based on the structure shown in FIG. 3 . Multiple solar panels and DC/DC converter units as shown in Figure 3 can be connected in parallel to supply power to loads or inverters.
一种适用于太阳能发电装置的能量优化装置，包括N个太阳能电池板和N个DC/DC变换器，每个太阳能电池板单独与每个DC/DC变换器串联在一起；N个太阳能电池板和DC/DC变换器串联的电路并联在一起，组成电源电路为负载或逆变器提供电源。An energy optimization device suitable for solar power generation devices, including N solar panels and N DC/DC converters, each solar panel is connected in series with each DC/DC converter; N solar panels The circuits connected in series with the DC/DC converter are connected in parallel to form a power circuit to provide power for the load or the inverter.
其中，装置中还设置有通信监控终端，所述通信监控终端和N个DC/DC变换器之间建立双向通信。所述N大于等于2。Wherein, the device is also provided with a communication monitoring terminal, and two-way communication is established between the communication monitoring terminal and the N DC/DC converters. The N is greater than or equal to 2.
实施例三：Embodiment three:
如图5所示，一种适用于太阳能发电装置的能量优化装置，包括N个太阳能电池板和M个DC/DC变换器，每N/M个太阳能电池板上串联一个DC/DC变换器；M个由太阳能电池板和DC/DC变换器串联的电路并联在一起，组成电源电路为负载或逆变器提供电源。其中，N大于M，并且所述M大于等于2。另外装置中还设置有通信监控终端，所述通信监控终端和N个DC/DC变换器之间建立双向通信。As shown in Figure 5, an energy optimization device suitable for solar power generation devices includes N solar panels and M DC/DC converters, and a DC/DC converter is connected in series on each N/M solar panels; M circuits connected in series by solar panels and DC/DC converters are connected in parallel to form a power circuit to provide power for loads or inverters. Wherein, N is greater than M, and M is greater than or equal to 2. In addition, a communication monitoring terminal is also provided in the device, and two-way communication is established between the communication monitoring terminal and the N DC/DC converters.
图5给出了本发明提出的分布式太阳能发电系统的另外一种结构。与图3结构相比，不同之处在于发电装置中多块太阳能电池板串联之后与DC/DC变换器连接。图5的结构适用于功率较大场合，也就是目前串型和多串型分布式发电系统的应用场合。多串太阳能电池板与各自的DC/DC变换器的输出串联后，再并联在一起，共同为负载或后级的逆变器供电。每串太阳能电池板的电压可以与其他串的电压不同，每个DC/DC变换器的输出电压以及处理的功率也可以不同。在实际当中，每串太阳能电池板的电压和DC/DC变换器工作状态受到各自的最大功率跟踪器的控制，保证每串的太阳能电池板输出在最大功率。对于该结构，以下电压关系式成立： （4） 。 Fig. 5 shows another structure of the distributed solar power generation system proposed by the present invention. Compared with the structure in Figure 3, the difference lies in that multiple solar panels in the power generation device are connected in series with a DC/DC converter. The structure shown in Fig. 5 is applicable to occasions with large power, that is, the application occasions of the current string type and multi-string type distributed power generation systems. Multiple strings of solar panels are connected in series with the output of their respective DC/DC converters, and then connected in parallel to jointly supply power to the load or the subsequent inverter. The voltage of each string of solar panels can be different from the voltage of other strings, and the output voltage of each DC/DC converter and the power processed can also be different. In practice, the voltage of each string of solar panels and the working state of the DC/DC converter are controlled by their respective maximum power trackers to ensure that the output of each string of solar panels is at maximum power. For this structure, the following voltage relationship holds: (4).
实施例四：Embodiment four:
如图6所示，一种适用于太阳能发电装置的能量优化装置，包括L个太阳能电池板和L个DC/DC变换器，每个太阳能电池板单独与每个DC/DC变换器串联在一起；L个太阳能电池板和DC/DC变换器串联的电路串联在一起，组成电源电路为负载或逆变器提供电源。As shown in Figure 6, an energy optimization device suitable for solar power generation devices includes L solar panels and L DC/DC converters, and each solar panel is connected in series with each DC/DC converter ; L solar panels and DC/DC converters are connected in series to form a power circuit to provide power for loads or inverters.
其中，装置中还设置有通信监控终端，通信监控终端和L个DC/DC变换器之间建立双向通信。所述L大于等于2。Wherein, the device is also provided with a communication monitoring terminal, and two-way communication is established between the communication monitoring terminal and the L DC/DC converters. Said L is greater than or equal to 2.
图6所示为本发明提出的第3种分布式太阳能发电结构框图，在图6中，每一个太阳能电池板都带有一个独立的DC/DC变换器，该太阳能电池板的输出仍然与该DC/DC变换器的输出串联。每一个太阳能电池板和它的DC/DC变换器可以看做一个发电单元，其输出电压为VOUT1。多个这样的发电单元在图6中串联，然后连接到负载或后级的逆变器。在该结构中，每个发电单元的太阳能电池板输出电压和功率可能各不相同；每个发电单元中的DC/DC变换器都带有自己的最大功率跟踪控制器，控制该DC/DC变换器的工作状态，从而调节这个单元中太阳能电池板的输出电压和功率，最终使得太阳能电池板的输出功率最大。对于该结构，以下电压关系式成立： （5） Fig. 6 shows the structural block diagram of the 3rd kind of distributed solar power generation that the present invention proposes, and in Fig. 6, each solar cell panel all has an independent DC/DC converter, and the output of this solar cell panel is still connected with the The output of the DC/DC converter is connected in series. Each solar panel and its DC/DC converter can be regarded as a power generation unit, and its output voltage is VOUT1 . A plurality of such generating units are connected in series in FIG. 6 and then connected to a load or a subsequent inverter. In this structure, the solar panel output voltage and power of each power generation unit may be different; the DC/DC converter in each power generation unit has its own maximum power tracking controller, which controls the DC/DC conversion The working state of the inverter, thereby adjusting the output voltage and power of the solar panel in this unit, and finally making the output power of the solar panel the maximum. For this structure, the following voltage relationship holds: (5)
实施例五：Embodiment five:
图7为基于图6的一个扩展：多串图6所示的发电结构并联后，共同给负载或后级的逆变器供电。图7为基于本专利提出的这几种结构框图的一个概括框图。本专利提出的各种结构可以在一个系统中混合使用，同时存在。而且后级的DC/AC逆变器也可以相互之间并联，共同为电网供电。Fig. 7 is an extension based on Fig. 6: after multiple strings of the power generation structure shown in Fig. 6 are connected in parallel, they jointly supply power to the load or the inverter of the subsequent stage. Fig. 7 is a generalized block diagram of these several structural block diagrams proposed based on this patent. The various structures proposed in this patent can be mixed and used in one system and exist at the same time. Moreover, the DC/AC inverters in the latter stage can also be connected in parallel with each other to jointly supply power to the grid.
实施例六：Embodiment six:
如图8所示，将图3至图7所示的各种结构串联或/和并联在一起，组成混合电源，为负载或逆变器提供电源。As shown in Figure 8, the various structures shown in Figure 3 to Figure 7 are connected in series or/and in parallel to form a hybrid power supply to provide power for loads or inverters.
实施例七：Embodiment seven:
如图9所示，在系统中加入一个监控终端，采集并监测分布式发电系统中每个发电单位的运行情况，实时记录系统的发电量并在系统出现故障的情况下，快速定位故障单元。系统中每个结构单元的发电量以及工作状态数据可以通过有线数据通信或者无线数据通信传输到监控终端。As shown in Figure 9, a monitoring terminal is added to the system to collect and monitor the operation of each power generation unit in the distributed power generation system, record the power generation of the system in real time, and quickly locate the faulty unit in the event of a system failure. The power generation and working status data of each structural unit in the system can be transmitted to the monitoring terminal through wired data communication or wireless data communication.
实施例八：Embodiment eight:
如图10所示，在图3的基础上在DC/DC变换器和太阳能电池板形成串联电路后面加设一个DC/DC变换器为负载或逆变器提供电源。As shown in Figure 10, on the basis of Figure 3, a DC/DC converter is added after the DC/DC converter and the solar panel form a series circuit to provide power for the load or the inverter.
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016619.2ACN102545709B (en) | 2012-01-19 | 2012-01-19 | Energy optimizing device suitable for solar power generation device |
| PCT/CN2012/086689WO2013107234A1 (en) | 2012-01-19 | 2012-12-14 | Energy optimization device for solar power generation device |
| Application Number | Priority Date | Filing Date | Title |
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| CN201210016619.2ACN102545709B (en) | 2012-01-19 | 2012-01-19 | Energy optimizing device suitable for solar power generation device |
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| CN201210016619.2AExpired - Fee RelatedCN102545709B (en) | 2012-01-19 | 2012-01-19 | Energy optimizing device suitable for solar power generation device |
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| WO (1) | WO2013107234A1 (en) |
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| CN202444443U (en)* | 2012-01-19 | 2012-09-19 | 无锡联动太阳能科技有限公司 | Energy optimization apparatus suitable for solar generating apparatus |
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| CN202004692U (en)* | 2010-12-30 | 2011-10-05 | 保定天威集团有限公司 | Photovoltaic power optimizer |
| CN202444443U (en)* | 2012-01-19 | 2012-09-19 | 无锡联动太阳能科技有限公司 | Energy optimization apparatus suitable for solar generating apparatus |
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