家庭储能项目简明方案
Simple scheme for home energy storage project
5KW-光储一体机
5KW- Integrated light storage machine
一. 系统拓扑 System Topology
储能作为一个新兴的市场，为中国的逆变器厂商和电池厂商带来了拓展新业务、改变原有业务行业地位的转型机
会。自 2018 年以来，快速发展的中国储能市场正在创造与日俱增的设备采购需求和项目开发机会。紧跟这一市场趋
势，锦鸿万创也积极开发新的储能产品应用于储能市场，包括交流耦合逆变器、单相储能逆变器和三相储能逆变器。本文
重点介绍了单相储能逆变器 5kW 户用储能系统方案设计。
As an emerging market, energy storage has brought transformation opportunities for
Chinese inverter manufacturers and battery manufacturers to expand new business and
change the status of the original business industry. Since 2018, the rapidly growing
energy storage market in China is creating increasing equipment procurement needs and
project development opportunities. Following this market trend, Jinhong wanchuang is
also actively developing new energy storage products for the energy storage market,
including AC coupled inverters, single-phase energy storage inverters and three-phase
energy storage inverters. Below mainly introduces the design of single-phase energy
storage inverter 5kW household energy storage system.
二. 户用储能系统介绍 Introduction of household energy storage system
三. 户用储能系统结构包括：光伏组件、储能电池、储能逆变器、并网及计量设备、公共电网、家庭负载及重要负载等。PV 能量优先满足重
要负载用电，其次给电池充电，最后流向家庭负载，多余再流向电网。
The structure of household energy storage system includes: photovoltaic module,
energy storage battery, energy storage inverter, grid-connected and metering
equipment, public power grid, household load and important load, etc. PV energy is
used first to meet the needs of important loads, then to charge the batteries, and
finally to household loads, and then to the grid.
四. 工作原理 Operating principle
五. （1）上午，光照充足 PV 能量先供给负载，家庭负载最大程度消耗光伏发电量，剩余电量将由蓄电池储存；光照不足，电池补充电能给
负载。
In the morning, sufficient PV energy will be provided to the load first, and the
household load will consume the photovoltaic power generation to the maximum
extent, and the remaining power will be stored by the battery. The light is
insufficient, and the battery replenishes the load with electricity.
六. （2）下午，在满足家庭负载消耗及蓄电池充满后，剩余电量将馈送到电网。
In the afternoon, after meeting the household load consumption and full battery,
the remaining power will be fed to the grid.
（2）下午，在满足家庭负载消耗及蓄电池充满后，剩余电量将馈送到电网。
产品性能 Product Performance
1. 智能高效 Intelligent and efficient
• 存储余电、提高光伏发电自用率
Storage of surplus electricity, improve photovoltaic power generation self-use rate
• 双向储能设计、PV、市电可给电池充电
Two-way energy storage design, PV, municipal electricity can charge the battery
• 可灵活配置铅酸电池和锂电池
Flexible lead-acid battery and lithium battery
• 充电控制和逆变一体化设计
Charging control and inverter integration design
• 同时兼容离网和并网模式
Compatible with both off - grid and connected mode
2. 操作灵活 Flexible Operation
操作灵活 Flexible Operation
• Wi-Fi/以太网/GPRS/RS485 多种通讯模式可选
Wi-Fi/Ethernet /GPRS/RS485 communication modes are optional
• 峰谷时间段可设置，自动削峰填谷
Peak and valley time period can be set to automatically, Automatic peak cutting and
valley filling
• 通过电脑和手机实现本地/远程控制
Local/remote control via computer and mobile phone
• 电容式感应按键操作及 LCD 显示，人机交互更加便利稳定
Capacitive induction button operation and LCD display ,human-computer interaction is
more convenient and stable
3. 安全可靠 Security and Reliable
• IP65 高防护等级，适合户外安装
IP65 high protection grade, suitable for outdoor installation
• 3 段/2 段充电控制，保证电池寿命
3 /2 stage charge control ,to ensure battery life
• 自然散热，降低单点故障率
Natural heat dissipation, reduce single point failure rate
技术参数
Technical Parameters
系统配置
System Configuration
（1）组件
Component
选取 300Wp 晶硅组件 18 块，9 块/串*2 并联接入 1 台 5kW 并离网一体机逆变器（单相），逆变器输
出 220V 电压，50Hz 的正弦波交流电，通过并网计量箱与电网实现并网。
Select 18 blocks of 300Wp silicon components, 9 blocks/series *2 parallel access to 1
5kW parallel off-grid all-in-one inverter (single phase), The inverter outputs 220V voltage,
50Hz sinusoidal alternating current, The grid connection is realized through the
connected metering box and the power grid.
（2）电池 Battery
根据下表分析得出家庭一天常用的总负载为：10.064KW，电池选用规格为：12V、200Ah 的蓄电
池 12pcs，采用 4 串 3 并的方式通过直流 DC 开关接入 5KW 并离网一体机逆变器，电池总容量：
28.8KWh,考虑蓄电池的放电深度(DOD=70%)，电池转化效率 94%，实际可使用的容量为：
18.95KWh，可维持家庭用电 1.9 天。
According to the following table, the common daily load of a family is:10.064KW, The
battery selection specification is: 12pcs 12V、200Ah battery, use 4 series 3 parallel way
through DC DC switch access to 5KW parallel off - grid integrated machine inverter,
Total battery capacity: 28.8KWh, Consider the discharge depth of the
battery(DOD=70%)
Battery conversion efficiency is 94%,The actual usable capacity is: 18.95KWh,
household electricity can maintain 1.9 days
家庭负载分析表 Household load analysis table
备注：①、空调日耗电量与环境温度、设定温度有关；
②、冰箱日耗电量与储存食物的多少、箱内控制温度的高低、开门次数多少、时间长短而变化。
Remark: ① Daily power consumption of air conditioner is related to ambient
temperature and set temperature
② Daily electricity consumption of the refrigerator varies with the amount of food
stored, the temperature controlled in the refrigerator, the number of times the refrigerator
opens, and the length of time varies.
（3）逆变器 Inverter
单台功率 5KW 并离网一体机逆变器 5KW。
Single power 5KW parallel off-grid all-in-one inverter
主要设备材料表 Material list of main equipment
报价单清单 List of quotations
