PV Four-capability EMS Solution

Distributed PV data becomes visible and measurable, while generation becomes adjustable and controllable, supporting the development of a new power system. The solution provides full PV awareness, regulation and control for distributed-PV and new-power-system requirements.

  • PV visibility
  • PV measurement
  • PV regulation
3-in-1Comm / regulation / acquisition
4Isolated RS485
9-24V24V DC supply
-30~70°COperating temperature
PV Four-capability EMS Solution Image
PV Four-capability EMS SolutionPV visibilityPV measurementPV regulation
PV Four-capability Solution

PV Four-capability EMS Solution

Addressing scattered distributed PV sites, invisible status, hard-to-trace generation deviations and difficult dispatch access, the solution uses the EMU100 to integrate 4G state-cryptography communication, a PV data-acquisition gateway and AGC/AVC regulation. One side connects to inverters, gateway meters and grid-connection points, while the other connects to the grid/cloud platform, achieving observable, measurable, adjustable and controllable operation.

PV visibilityPV measurementPV regulation
PV Four-capability EMS Solution Scenario Image
Visibility, measurement, regulation and control for distributed PV grid-connection management
Grid-connection access Four-capability compliance
System integration Three-in-one
Multi-platform access Dispatch / VPP

Four-capability Requirements

A cloud-edge-device coordination solution connecting site control, remote O&M and revenue review.

Visibility, measurement, regulation and control for grid-connected distributed PV.

Customer Situation

Distributed PV Data Is Fragmented

Inverters, meters and grid-connection status lack a unified operating view.

Business Impact
Limited visibility
Conversation Starter
Data
Product Approach

EMU100 Unified PV Access

EMU100 unifies inverter data acquisition and grid-connection status in one view.

  • Unified field access
  • Automatic data acquisition
  • Cloud reports
Customer Situation

Operating Status Is Hard to Measure

Traditional monitoring shows data but makes deviation and fault diagnosis difficult.

Business Impact
Higher O&M effort
Conversation Starter
Status Measurement
Product Approach

EMU100 + FeiCloud Remote O&M Review

Centralized alarm, trend and inspection handling supports remote O&M.

  • Status trends
  • Alarm history
  • Remote O&M Review
Customer Situation

PV Control Capability Is Limited

Grid requirements need southbound inverter access and active/reactive power control.

Business Impact
Control gap
Conversation Starter
Control Capability
Product Approach

EMU100 Edge Regulation

AGC/AVC and active/reactive power control execute at the edge for grid dispatch.

  • AGC/AVC
  • Power regulation
  • Edge execution
Customer Situation

Dispatch Access Is Difficult

Protocol and encryption adaptation increase the cost of connecting distributed PV to grid platforms.

Business Impact
Integration effort
Conversation Starter
Dispatch Access
Product Approach

EMU100 Secure Dispatch

Encrypted 4G and southbound/northbound protocol support simplify dispatch integration.

  • Secure access
  • Protocol adaptation
  • VPP dispatch

A cloud-edge-device coordination system connecting project construction, site control, cloud review and long-term operation.

System Architecture

EMU100 architecture

The EMU100 is positioned as a PV intelligent controller: 4G state-cryptography communication module + AGC/AVC regulation + PV data-acquisition gateway.

Field Data Edge Execution Cloud Collaboration Operation Review
Application & Operation Layer Dashboards, reports, apps and dispatch portals
Cloud-based O&M

O&M + Edge Product Remote O&M, .

Platform Collaboration Layer FeiCloud, EMS cabinet and strategy library

Protocol, support / Protocol.

Edge Control Layer EMU controller, local strategy and safety interlock
EMU100 Controller

Edge computing, data acquisition, and receipt and delivery of control commands.

Field Device Layer PCS, BMS, meters, PV-storage-charging-diesel and loads
Southbound Acquisition

Access / inverter / PVOperation.

Control Strategy

Key Control Strategies

Visibility

Aggregate PV string, inverter, meter (bi-directional metering) and weather-station data into one station-wide view.

  • PV string data
  • PV inverter data
  • Meter data (bi-directional metering)
  • Weather-station data
  • Multi-source aggregation for a full station view

Measurement

Encrypted 4G communication and northbound/southbound protocols support a 10-second dispatch response.

  • Encrypted 4G communication
  • South/State Grid encryption protocols
  • IEC 61850 and 104 protocols
  • MQTT, Modbus TCP/RTU, CAN
  • 10-second dispatch response

Regulation

AGC/AVC dual closed-loop control with precise active/reactive power regulation and SVG dynamic reactive-power compensation.

  • AGC/AVC dual closed-loop control
  • Precise active/reactive power regulation
  • SVG compensation within 100 ms
  • Power factor above 0.98

Control

Remote control supports remote start/stop and remote grid disconnection; dispatch can disconnect the PV plant from the grid on faults, limit violations or abnormalities.

  • Remote start/stop and remote grid disconnection
  • Dispatch can disconnect the PV plant from the grid on faults, limit violations or abnormalities
Solution Value

Solution Value

Grid Connection

AGC/AVC and encrypted communications are integrated at the factory to meet South/State Grid four-capability access requirements and reduce rework risk.

System Integration

Communication, regulation and data acquisition are combined in one controller, replacing three conventional devices and freeing cabinet space.

Multi-platform Access

One device connects the grid dispatch center, PV management platform and VPP, replacing a fragmented three-system setup.

Dispatch Response

Respond to dispatch commands within 10 seconds and provide <100 ms SVG reactive-power compensation for real-time grid regulation.

Lower O&M Cost

Remote commissioning plus AI predictive maintenance increases the number of sites managed per person by 3–5 times and reduces OPEX.

Data Security

End-to-end 4G encrypted transmission supports grid security audits and reduces forced-offline risk caused by security gaps.

Recommended Device

Recommended Device Models

EMU 100 Product Image
EMU100

PV Four-capability Controller

Purpose-built for distributed-PV four-capability projects, EMU100 integrates encrypted 4G communication, AGC/AVC regulation and a PV data-acquisition gateway in one controller, with 4 isolated RS485 ports, 9–24V DC supply and a −30~70°C industrial operating range to meet South/State Grid grid-connection requirements.