Gmde Ghess 5.0_6.0kwh User guide

–GHESS 5.0_6.0KWH

GMDE 3-Phase Solar Battery Hybrid Storage System

Installation and Application Guide

Version 1.0

CONTENT

1. Unpacking and Packaging list ........................................................................................................3

2. System Overview...........................................................................................................................3

System Overview Diagram ................................................................................................3

System Specification..........................................................................................................4

2.1 Main System Components ..................................................................................................5

2.2 Internal Topology Illustration ..............................................................................................6

2.3 Output Connectors Illustration ...........................................................................................7

3. Installation.....................................................................................................................................7

3.1 Install the inverter ...............................................................................................................7

3.2 Install the battery packs ......................................................................................................8

3.3 External Line Connection ..................................................................................................11

4. System Operation........................................................................................................................13

4.1 System Start-Up.................................................................................................................13

4.2 System Interface................................................................................................................13

4.2.1 Main Operation Modes ..........................................................................................13

4.2.2 Operation Interface................................................................................................14

4.2.2 Change Operation Modes ......................................................................................15

4.3 System Turn-off .................................................................................................................17

5. Trouble Shooting .........................................................................................................................18

5.1 Fault Messages and Action List .........................................................................................18

5.2 Fault Acknowledgement....................................................................................................20

5.3 Technical Service ...............................................................................................................20

1. Unpacking and Packaging list

Before installation, please unpack the system packages and check if all the system components

are available according to list below. Or should any components listed below are damaged during

transport, please contact your seller or the supplier GMDE.

Packaging List

System Component

Hybrid Inverter Powervortex 305KTL

1 PCS

GMDE 19”System Cabinet (with EMS unit, On/Off-grid switching box,

Battery Control Box 150V integrated, energy meter included )

1 PCS

Battery Module M15020

2 PCS

Document

User Manual

1 PCS

Table 1 Packaging List

2. System Overview

This manual describes the installation and operation of the GHESS series solar battery hybrid

energy storage system (HESS). The GHESS series hybrid energy storage system is designed and

developed by GMDE Technology Ltd. and can be widely used in residential applications. In which,

the GHESS 5.0_6.0kWh refers to a solar battery hybrid system with 5.0kW nominal AC output

power and 6.0kWh lithium-ion battery capacity. As the battery module adopted in this system is

150V20Ah cell, this system is battery capacity extendable with each step 3kWh (150V20Ah).

System Overview Diagram

Figure 1 is an overview diagram when installing the GHESS system and connecting it with Grid

and Load.

Figure 1 System Overview Diagram

System Specification

Table 2 is the brief spec of the GHESS 5.0_6.0kWh solar battery hybrid energy storage system.

MODEL

GHESS 5.0_6.0kWh

System parameters

Nominal/useable capacity[kWh]

6.0/4.80@80%DoD

Installation

All-in-one cabinet

Warranty [year]

5 years standard, battery 10 years extendable

PV side input

Max. input power [kW]

5.0

MPPT voltage range[V]

280-800

MPPT tracker

Battery side input

Operating voltage range[V]

150@[120, 500]

Max. charging power[kW]

4.0

Max. charging current [A]

Charging/discharging efficiency

96.5%/96.5%

AC output-on grid

Max. output power[kW]

5.0

Output voltage range[V]

3N~400, 324-436, 437-460(<10min.)

Certification

VDE-AR-N4105, IEC62109

AC output-off grid (Optional)

Rated voltage & frequency [V/Hz]

400±2%,50±2%

Output power [kW]

Rated power 2.5, instantaneous power 5.0

Power factor

[-0.7, +0.7]

Battery packs

The lithium iron phosphate battery pack

Nominal capacity [kWh]

6.0

Public Grid

Utility Meter

(Existed)

Meter

Load

Emergency

Load

PVMeter

AC GRID AC LOAD

Module/unit

150V/20Ah lithium-ion module*2 modules in parallel

Life cycle

80% DOD for 3000 life cycles

Visual interface

EMS

7 inch color touch screen

Interface communication

RS485/RS232/USB/Ethernet/Wifi

Table 2 GHESS 5.0_6.0kWh system specification

2.1 Main System Components

Viewing from outside, you’ll see the system is consisted of the main parts below:

Figure 2 Main System Components

Illustration:

Energy Management System(EMS) unit

System Circuit Breakers(AC GRID/ Emergency Load/PV/BAT)

Battery Control Box 150V

Battery Modules 150V20Ah

Hybrid Inverter 5kW

System Cabinet

Output Connectors

Table 3 System components list

2.2 Internal Topology Illustration

Figure 3 is the internal electrical topology of the system. The main functional components

contained in this system are:

Figure 3 Internal system topology

Component

Function

Hybrid inverter

To transfer the DC current generated by PV panel into AC current

and to charge/discharge the battery packs

On/off-grid Auto-switching

box

To switch the system from grid-tied to off-grid operation mode

when grid failure happens

Energy Management System

To monitor and control the system operation

Battery packs (including

Battery Control Box)

To store the energy generated by PV panels or from the public

grid

Energy meter

AC data collection and transportation

Table 4 Main function components

PowerVortex 305

Hybrid Inverter

GMDE On/Off Grid Auto-

Switching Box

Energy Management

System

BAT+

BAT- PV+

PV-

RS485CAN

COM

RS485

PV Meter

AC GRID AC LOAD

+ - L1 L2 L3 N L1 L2 L3 N PE PE

PIN8

PIN7

2.3 Output Connectors Illustration

Viewing from the back side of the cabinet, at the bottom of the cabinet, you can find the output

connectors, as shown in Figure 4.

Figure 4 Output connectors

3. Installation

The system is very easy to install. Insert the battery modules and hybrid inverter into the system

cabinet according to the following steps in Section 3.2 Install the battery packs and Section 3.1

Install the inverter; finish the output line connection according to Section 3.3 External Line

Connection; check and then the system installation is done.

3.1 Install the inverter

Please follow these steps to install the inverter into the system cabinet:

1) Align with wall bracket, move Powervortex 305KTL hybrid inverter in horizontal direction to

proper position;

2) Make the hook on wall bracket insert into the hole on the back of Powervortex 305KTL hybrid

inverter;

3) Slowly lower the hybrid inverter , ensure the device hang on the hook of wall bracket;

4) Check if the hybrid inverter is properly fixed on the wall.

Figure 5 Inverter installation

3.2 Install the battery packs

5) Insert the battery modules into the system cabinet, as shown in Figure 6;

Figure 6 Battery installation

2) At the back side of the cabinet, connect the hybrid inverter, Battery Control Box and battery

modules with the lines as shown in Figure 7; the detailed DC line connection between inverter

and battery packs are illustrated in Figure 8. (The battery packs are connected in parallel, which

means the final battery pack equals to 150V/40Ah)

Figure 7 Battery line connection

Figure 8 Detailed DC line connection on battery side

3.3 External Line Connection

Connecting the PV panels, public grid, AC load and meter with the systems with this system via

the following output connectors, as shown in Figure 9.

Figure 9 External Line Connection

PowerVortex 305

Hybrid Inverter

GMDE On/Off Grid Auto-

Switching Box

Energy Management

System

BAT+

BAT- PV+

PV-

RS485CAN

COM

RS485

PV Meter

AC GRID AC LOAD

+ - L1 L2 L3 N L1 L2 L3 N PE PE

PIN8

PIN7

4. System Operation

4.1 System Start-Up

To start up:

1) Turn on the circuit breaker ”AC Grid”(QF1);

2) Turn on circuit breaker “BAT”(QF12); now the EMS is powering on and the battery packs is

connecting with inverter;

3) Turn on circuit breaker “PV”(QF11), to connect the PV panel on the hybrid inverter;

4) Turn on circuit breaker “LOAD”(QF2), to connect the emergency load on the hybrid inverter.

4.2 System Interface

4.2.1 Main Operation Modes

When the system is connected with the public grid, the GHESS series solar battery hybrid system

has 2 operation modes: Self-use mode and Peaking Shaving mode. When outages, the system can

also operate under back up mode, in which the grid is disconnected and emergency load power is

supplied by the system independently.

Below is introduction on the 3 operation models:

1. When the grid is normal:

1) Self-use mode: the GHESS series solar battery hybrid system can increase the PV Self-use up

to 75%

Daytime: If there is enough sunshine, energy generated by PV supplies the load first and then

charges battery packs; if the load power is covered and battery is full charged, surplus energy

will be fed into the public grid to win the FIT tariff;

Night or no enough sunshine: the hybrid system first discharges the battery pack to cover the

load; if the energy is still not sufficient, the grid will power the rest family load.

Note: The system has finished initial setting and configuration before leaving factory. So during the

installation and operation process, it is not suggested for installer/customer to change the default

settings and internal wiring, as this will void the warranty. If there are any special requirements

needed, please contact your seller for support.

2) Peak Shaving mode: save energy bill via shifting energy from peak time to off-peak time for

areas with Time of Use electricity prices.

After setting the charging and discharging time via the touch screen, the system can charge the

battery packs during the off-peak time(charging time) and discharge the battery during the

peak time (discharging time), which realize peak shaving based on different electricity prices.

2. When the grid is failed or abnormal:

3) Back Up mode: disconnect from the public grid and emergency load power is supplied by

the system independently.

Auto-switch to off grid: it has device has integrated backup function. So when the device

sensors the drop/change of the grid voltage, it disconnects the relay completely and then shifts

from on-grid to off-grid mode. Under the off-grid mode, the important load is powered by

battery;

Auto-switch to on grid: When the device sensors that the grid is back to normal, it stops

running under off-grid mode and then closes it’s internal relay. The system is running under

on-grid mode again.

4.2.2 Operation Interface

The default operation mode for the system is Self Use mode. When starting the system, the EMS

touch screen enters the Home page as below:

Figure 10 Home page of EMS

Touch the other items (such as “Production”, “System”etc.) on the touch screen to shift between

different items.

4.2.2 Change Operation Modes

To change the system operation mode from default Self Use to Peak shaving, please follow below

steps:

1) Touch the “User”item on the touch screen and enter the “User”page.

Figure 11 User page on the EMS

2) Touch the “Setup”button on the right and bottom of the “User”page, then input the

password to login. The default password is 666666.

Figure 12 Input the password

3) On the “Setup”page below User page, touch the “System”button on the left side, and

change the System Mode options from Self Use to Peak Shaving.

Figure 13 Operation modes selection

4) After choosing the “Peak Shaving”mode, you also need to set the time range and power for

charging / discharging. Save the successful setting and the system will operate under peak

shaving mode.

Figure 14 Time range and power setting under Peak Shaving mode

4.3 System Turn-off

To turn off:

5) Turn off circuit breaker “BAT”(QF12);

6) Turn off circuit breaker “PV”(QF11);

7) Turn off the circuit breaker ”AC Grid”(QF1)

8) Turn off circuit breaker “LOAD”(QF2)

Note: the system will automatically shift to Backup operation mode when the public grid is

failed. There is no need for manual setting.

5. Trouble Shooting

5.1 Fault Messages and Action List

When failure occurs, warning codes will be displayed on the touch screen. The latest 20 fault

codes will be stored in the EEPROM. Check the history fault information via the touch screen.

Detailed fault definitions are listed as below:

Item

Fault Message

Action List

Offset Iac Warning