混合型光伏+储能系统， 即光伏组件发出来的直流电，通过控制器，存储到蓄电池组中， 电网也可以通过双向 DC-AC变流器向蓄电池充电。 能量的汇集点是在直流蓄电池端。 白天光伏发电首先供给负载，其次通过 MPPT控制器来给蓄电池充电，储能系统连接在电网上，多余的电量可以并网；晚上电池放电供给负载，不足部分由电网补充；电网停电时，光伏发电和锂电池仅供电给离网负载，并网端负载无法使用。 当负载功率大于光伏发电功率时，电网和光伏可以同时向负载供电。 因为光伏发电和负载用电都不是稳定的，要依赖蓄电池平衡系统能量。另外，该系统也支持用户自行设置充电及放电时间来满足用户用电需求。

     混合逆变器集成了离并网功能，提高了充电效率。 并网逆变器出于安全考虑，会在停电期间自动关闭太阳能电池板系统的电源。而混合逆变器能让用户同时拥有离网和并网功能，因此即使在停电期间也可以使用电力。混合逆变器简化了能源监控，可以通过逆变器面板或连接的智能设备检查性能和能源生产等重要数据。如果系统有两个逆变器，则必须分别监控它们。 DC 耦合降低了 AC-DC 转换的损耗。电池充电效率约为 95-99%，而交流耦合则为 90%。

     混合逆变器经济、紧凑、安装简单。 安装带有直流耦合电池的新混合逆变器可能比将交流耦合电池改装到现有系统更便宜，因为控制器比并网逆变器要便宜一些，切换开关比配电柜也要便宜一些，直流耦合方案还可以做成控制逆变一体机，设备成本和安装成本都可以节省。尤其是对中小功率的离网系统来说，直流耦合系统极具成本效益。 混逆模块化程度高，新增组件和控制器很简便，可以使用成本相对较低的直流太阳能控制器轻松添加额外的组件。且混合逆变器旨在随时集成存储，可以更轻松地添加电池组。混逆系统较为紧凑，使用高压电池，电缆尺寸更小，损耗更低。

Hybrid photovoltaic + energy storage system, that is, the direct current emitted by photovoltaic modules is stored in the battery bank through the controller, and the power grid can also charge the battery through the two-way DC-AC converter. The gathering point of energy is at the DC battery end. During the day, the photovoltaic power generation first supplies the load, and then charges the battery through the MPPT controller. The energy storage system is connected to the power grid, and the excess power can be connected to the grid. At night, the battery discharge supplies the load, and the insufficient part is supplemented by the grid; In the case of power failure, photovoltaic power generation and lithium batteries are only supplied to off-grid loads, and grid-connected loads cannot be used. When the load power is greater than the PV power, the grid and PV can supply power to the load at the same time. Because photovoltaic power generation and load electricity consumption are not stable, to rely on battery balance system energy. In addition, the system also supports users to set charging and discharging time to meet the demand of users.

The hybrid inverter integrates the function of off-grid connection to improve the charging efficiency. For safety reasons, grid-connected inverters automatically shut down the power to the solar panel system during power outages. Hybrid inverters allow users to have both off-grid and grid-connected functions, so they can use power even during power outages. Hybrid inverters simplify energy monitoring by checking important data such as performance and energy production via the inverter panel or connected smart devices. If the system has two inverters, you must monitor them separately. DC coupling reduces the loss of AC-DC conversion. Battery charging efficiency is about 95-99%, while AC coupling is 90%.

Hybrid inverter is economical, compact and easy to install. Installed with a battery of new hybrid inverter dc coupling than will be cheaper exchange coupling battery adapted to existing systems, because the controller is cheaper than grid inverter, switch is cheaper than distribution ark also, dc coupling scheme can also be made and control inverter machine equipment can save cost and installation cost. Especially for small and medium power off-grid systems, DC coupling systems are cost-effective. The high degree of hybrid modularity makes it easy to add additional components and controllers, making it easy to add additional components using a relatively low cost DC solar controller. And hybrid inverters are designed to integrate storage at any time, making it easier to add battery packs. The hybrid system is compact, uses high-voltage batteries, and has a smaller cable size and lower loss.