# 自建了一个小型光伏发电站，3块太阳能板日发电量4度

**URL:** <https://bbs.eeclub.top/t/topic/160>\
**Category:** 个人项目分享 / Personal Project Sharing\
**Tags:** Share, Solar-Energy, PhotoVoltaic-Panel\
**Created:** [2025 年11 月 3 日 09:18 UTC](https://bbs.eeclub.top/t/topic/160 "2025-11-03T09:18:52Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

作者： ![zeruns](https://bbs.eeclub.top/user_avatar/bbs.eeclub.top/zeruns/32/7_2.png) [@zeruns](https://bbs.eeclub.top/u/zeruns)\
发布日期： [2025 年11 月 3 日 09:18 UTC](https://bbs.eeclub.top/t/topic/160/1 "2025-11-03T09:18:52Z")

</div>

在家里天台自建了一个小型光伏发电站，3块太阳能板日发电量4度。

2块350瓦的单晶硅光伏板 + 1块350瓦的多晶硅光伏板，3块板并联，接 MPPT太阳能充电控制器 和 并网逆变器，接了4块12V20AH的铅酸电池做蓄能（2并2串），并网逆变器设置固定输出400瓦（[家里的网络机柜](https://blog.zeruns.com/archives/859.html)平常工作功率在400瓦左右，刚好可以抵消一下这部分用电量）。

没有做防逆流，因为如果要做防逆流就需要从天台拉线到1楼的电箱里，比较麻烦。

晴天时日发电量4度左右，多云/阴天时日发电量2度左右。

总成本大概两千多元，预计回本周期要3到4年。

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- 我的家庭网络机房/机柜，家庭网络方案分享：[https://blog.zeruns.com/archives/859.html](https://blog.zeruns.com/archives/859.html)
- Ultra7-265K 和 技嘉Z890M-AORUS-ELITE-WIFI7主板 简单开箱测评：[https://blog.zeruns.com/archives/863.html](https://blog.zeruns.com/archives/863.html)
- 开源TypeC拓展坞，4个10Gbps的USBA口+2.5G网卡+读卡器：[https://blog.zeruns.com/archives/868.html](https://blog.zeruns.com/archives/868.html)

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**设备购买地址：**

- 单晶硅太阳能板：[https://s.click.taobao.com/8wxoRdr](https://uland.taobao.com/coupon/edetail?e=fYnslEFm%2B%2BOlhHvvyUNXZfh8CuWt5YH5OVuOuRD5gLJMmdsrkidbOWBzzpT26idJExChRNtGU6hg2QOxlT034bBYfVuc6ucViXm0IkO5BNKK9Fop8h6FlNrtMKCDMzA9OdDm46FXSDfyMW3eIAWKRa6LeGhgJY%2B%2F7NjcxRIBfQbVM%2Fe4LpP7Oq9ple94x%2FzCvMZANM8PGa%2B%2FUYQCAaOPMdWC1L4prmAloJR3BABp6VpHpGV%2B%2FJZi7mNlU8NoGyD6eYJIs7IbULH34l3KjTMlP%2BG5oSLtNGNr7wxoFfFgDwAlpmL8%2BClTPHXHr4RPsaSqLV38Us6%2FDUshQI1vQ4QVYVkT%2Burs3qO2&traceId=2131271417471247462182083e2089&union_lens=lensId%3APUB%401747124698%40213eacb4_1bd7_196c8bf3d34_44d2%40026ytBDtRhtWwfevwAvm7R0N%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_3_1747124698499114794199%3Bscm%3A1007.30148.329090.pub_search-item_4da60acd-a4cf-4b8c-b771-210ac1f24c42_)
- MPPT太阳能充电控制器：[https://s.click.taobao.com/h4nYnor](https://s.click.taobao.com/t?e=m%3D2%26s%3DSIUH6NyqsmBw4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFupH%2BKVf1VvfVFQwxCQt7Qv0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAbedy9oB%2FA4K3p5GMFGQbjaLWMw3EOEsyJN2owMjhufwDudUsQ2T%2Bdqkb8knIETugVozII1TCH15eaIGR9us0IBu4o5eEWl49%2F%2FrtLiM2QUKTbct5I6OP7kLEkqTedE399KEV1g6mN9Cwy3zu75zXt7fUF%2Fw8HsSgxgxdTc00KD8%3D&union_lens=lensId%3APUB%401747124913%4021059491_1b93_196c8c28409_2501%400230tpJWBZXFKumQ8JQuzTUK%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_1_1747124913246114794199%3Bscm%3A1007.30148.329090.pub_search-item_f50b026d-cf7e-4799-83fe-eacdc701b39e_)
- 光伏逆变器：[https://s.click.taobao.com/tvASnor](https://s.click.taobao.com/t?e=m%3D2%26s%3D8PeduCcC67Vw4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFupH%2BKVf1Vvfb5RMxQlzbTX0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMA1r6SbVmuN2PT4oGU%2FVaBs%2F1SarTXhIOTUdDn0Cj7EhMsrVKvcI5LQKY0dxHBaqGHOmXcqfcV2hX3LcWyvUGKrX%2FDxJNftTiKsRtePdBkJY0HgfVEdPB6xpGZ9wPRcXV%2BQ%2FMlsmagC3QXNlf5BQZ2W6jzZPXSPVnmxiXvDf8DaRs%3D&union_lens=lensId%3APUB%401747125064%40213d0131_1bd9_196c8c4d1a0_216c%40024s7hW24fGdbr7pXBCqI1d%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_7_1747125064163114794199%3Bscm%3A1007.30148.329090.pub_search-item_a08de652-ff7a-4ff8-9107-ed97f841ea5d_)
- 12V20AH铅酸电池：[https://s.click.taobao.com/FBURnor](https://uland.taobao.com/coupon/edetail?e=ojPEwRF93relhHvvyUNXZfh8CuWt5YH5OVuOuRD5gLJMmdsrkidbOWBzzpT26idJGAn636pmtQKeWMSpDjwTDBI8lQITilZxGp6TmI30iBT1Uv63p0bqhFuUDiyvxZS1RSHvQe2jOLZ9pbNCYX0I%2BPP%2BWUTgK%2F%2B0I%2BtaUgbudUxA%2B536asYsLWVfKa%2BhVnNDAzwxhYijrU8sypEDzt%2BnvpjB6TX2HR3QQZ4EQmt7tglMGrKQ%2B%2BbQ8NMkFDEKS7bEh0svEjoeq%2B0aQcAM%2Fbtha6iwvoz5uaxwVImp2sBLtL5b6KFd96XrxmjcIOVz7TJFCXX9wc%2FTtKO1WP1%2B%2B3EzNNssii%2F7skwC&traceId=2131271417471251732781106e2089&union_lens=lensId%3APUB%401747125150%4021077bc9_1bc4_196c8c623ad_4729%40026gqhLInosspQMbiAmo2YOO%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_1_1747125150713114794199%3Bscm%3A1007.30148.329090.pub_search-item_56f7b892-f4aa-4528-b554-a8b0af20a7b3_)
- 带MC4连接器光伏线缆：[https://s.click.taobao.com/q0RYRdr](https://s.click.taobao.com/t?e=m%3D2%26s%3DJIaQmgctoA9w4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFupH%2BKVf1Vvfkr6%2Ffi1wcpn0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMA2eLyfspRz1L9R7R4oT9ML5ESMSIvSnZOMN7NXhFCiyks7%2BkuS%2Bd71NjEElarcb1VMI5MouAnYPOZ8L0ia0LDgt1Tv3ca%2Fy1Wv1KZvH797cP%2F%2BAAA%2Bf9Z2pGZ9wPRcXV%2BQ%2FMlsmagC3SOT0IyboWpDKOG7IneSs4TxiXvDf8DaRs%3D&union_lens=lensId%3APUB%401747125200%402127f635_15e2_196c8c6e4ac_0592%4002PSasEtpiTAna3GbqCf0nf%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_18_1747125200129114794199%3Bscm%3A1007.30148.329090.pub_search-item_ec49be2a-e760-46b6-a960-abc7bda8cefa_)

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## 照片

3块太阳能板：

 ![](https://s3.eeclub.top/original/1X/0c89817823c56925b92da8da40c9fc27e37be535.webp)

MPPT控制器和光伏逆变器：

 ![](https://s3.eeclub.top/original/1X/a9edd253b28c3854c44ae2b96229d2ef1a869b5c.webp)

MPPT控制器的APP截图如下，3块板并联的最高功率707瓦左右：

 ![](https://s3.eeclub.top/original/1X/e7953d35a570c0dde8cffca1a85d4bfa7f3a04e7.jpeg)

光伏逆变器的网页管理页面截图：

 ![](https://s3.eeclub.top/original/1X/4a92174ba2e56d986e4c4ccc4b19f63d4eb65c46.jpeg)

逆变器交流输出的电线上我自己额外接了个电流互感器，统计数据如下图：

 ![](https://s3.eeclub.top/original/1X/3ae09e5090fa13ebaa6f88916764e2b747ef42fe.jpeg)

家里总用电功率的波形图，可以看到B相的用电功率在白天时明显下降：

- 做了个三相电量采集器开源出来，可以方便监测家里用电情况： [https://blog.zeruns.com/archives/771.html](https://blog.zeruns.com/archives/771.html)

 ![](https://s3.eeclub.top/original/1X/277898bfeaa9fa373889daea04495750b1ed9224.jpeg)

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2025.6.9 补充更新，现在3块板都接了MPPT光伏优化器，并将连接方式从并联改成串联，现在晴天日发电量5度左右！

> **MPPT光伏优化器** 是安装在光伏组件端的电力电子设备，核心功能是通过最大功率点跟踪（MPPT）技术，让每个组件独立工作于最佳功率点。其作用主要包括：
> 
> 1. **提升系统发电量** ：解决组件遮挡、衰减差异等问题，避免组串内“短板效应”，较传统方案可提升5%-30%发电量。
> 2. **优化系统设计** ：支持组件差异化配置，灵活适配复杂安装环境（如屋顶朝向、倾角不一），降低设计限制。
> 3. **增强系统可靠性** ：单点故障不影响其他组件，减少串联电路风险，延长系统寿命。
> 4. **智能监控与维护** ：实时监测单个组件状态，快速定位故障，简化运维。  
> 适用于分布式光伏系统、老旧电站改造等场景，通过分布式优化替代传统集中式管理，提升光伏系统的效率与经济性。

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2025.11.3 补充更新，多加了一块350W的单晶硅光伏板串联进去，电池由铅酸电池换成磷酸铁锂（闲鱼上买的成品电池组，含保护板，700元1.2度电容量），原先的铅酸电池寿命以及大幅下降的，铅酸电池循环寿命太短了，还是得磷酸铁锂才行。

 ![](https://s3.eeclub.top/original/1X/215d774116a8770806987f1b7e67a064e7cfdc11.webp)

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## 推荐阅读

- **高性价比和便宜的VPS/云服务器推荐:** [https://blog.zeruns.com/archives/383.html](https://blog.zeruns.com/archives/383.html)
- 我的世界开服教程：[https://blog.zeruns.com/tag/mc/](https://blog.zeruns.com/tag/mc/)
- DeepSeek-R1私有化部署教程 Ollama+OpenWebUI ：[https://blog.zeruns.com/archives/853.html](https://blog.zeruns.com/archives/853.html)
- Flarum论坛网站搭建教程，零基础搭建论坛社区网站，Flarum主题和插件安装教程：[https://blog.zeruns.com/archives/866.html](https://blog.zeruns.com/archives/866.html)
- 爱快 IK-Q3000 WiFi6无线路由器 简单开箱评测和拆解：[https://blog.zeruns.com/archives/860.html](https://blog.zeruns.com/archives/860.html)
- 雨云 RCA云应用(基于K8s) 搭建PHP网站的教程：[https://blog.zeruns.com/archives/869.html](https://blog.zeruns.com/archives/869.html)

English Version of the Article: [https://blog.zeruns.top/archives/55.html](https://blog.zeruns.top/archives/55.html)