Introduction to SylixOS（MS-RTOS）Applications in Power Products

I. Traditional Power Grid Devices:

Relaying protection, measurement & control, stability control, PMU, time synchronization, fault recording, and other devices (transmission and substation)

Typically, AMP solutions are used, with a few customers using SMP solutions. In November 2019, China's first 100% domestically produced 500kV relay protection device using SylixOS was commissioned in Henan (Xuji Group). A month later, 100% domestically produced relay protection devices using SylixOS from customers like Sifang Automation and NARI Group were successively deployed at Foshan Sanzhou Substation and Guangzhou Liede Substation. The software block diagram is as follows:

In October 2020, customers such as NARI Technology, Jicheng Electronics, and Dongfang Electronics conducted network access tests for relay protection devices at institutions like State Grid Electric Power Research Institute and KEP. Subsequently, companies like Zhonglue Smart and Huaruitai also began developing fully domestically produced devices using SylixOS.

In 2020, State Grid required the leading enterprises to achieve full station localization. The top companies that had previously developed based on SylixOS then developed measurement & control, stability control, PMU, time synchronization, and other devices based on their existing platforms.

DTU, FTU, and other devices (distribution)

Early users of SylixOS, such as Sifang Automation and Dongfang Electronics, developed related devices based on their existing software and hardware platforms.

Changyuan Shenrui developed and deployed related devices, including charging piles, PV grid-connected terminals, and microgrid controllers, using SylixOS in a Southern Grid project.

Thermal protection, power plant protection devices (power generation)

Similar to protection devices, development is primarily conducted with Dongfang Electric Corporation, largely based on the aforementioned solutions. It is expected that in April 2021, products will be tested and power plant device testing standards will be refined at the "Energy Industrial Control Security Engineering Laboratory" established by Dongfang Electric Corporation and China Power Investment Corporation in Sichuan.

UHV DC protection devices (transmission and substation)

Collaborating with Xuji Group on the development of UHV DC protection devices.

Notes:

All the above AMP solutions provide:

Inter-core communication based on shared memory (dual-system mode can provide virtual network cards, network file systems, and other communication methods);

Support for trusted computing;

Support for network firewalls (in conjunction with FPGA functions, passing special network security tests for power monitoring system devices);

Provision of production packaging tools;

Competing solutions in the industry:

Linux + bare-metal open-source code mode. For this type of industry customer, it's crucial to seize the initiative. Chip manufacturers generally develop Linux + bare-metal AMP mode later. SylixOS has an advantage in this regard, offering rapid adaptation and solution deployment. Additionally, SylixOS's experience in full domestic production allows for rapid adaptation and product launch after chip replacement. Below is a partial list of commonly used BOMs:

Component

Original BOM

Alternative 1

Alternative 2

CPU

ZYNQ-7015(Xilinx)

2K1000(Loongson)

T3(Allwinner)

MCU

MK64FN1M0VLQ12（NXP）

GD32F450VGT6(GigaDevice)

FPGA

ZYNQ-7015(Xilinx)

GW3AT-100(Gowin)

PGL50H(Unigroup Guoxin)

PGT180H(Unigroup Guoxin)

DRAM

IS43TR16640BL-107MBLI(ISSI)

SCB15H1G160AF(Unigroup Guoxin)

S-NOR

IS25LP256D-JMLE(ISSI)12

GD25S512M(GigaDevice)

_e_MMC

NAND

MTFC4GACAJCN-4M IT(Micron)

IS21S04G(ISSI)12

GD5F4GQ4UBYIG(GigaDevice)

RS-485

SN65HVD82DR(TI)

TP8485E(3PEAK)

BL3085B(Belling)

RS-232

MAX202EESE(Maxim)

TP3232N(3PEAK)

Logic

TI/NXP

Nexperia

Crystal Oscillator

EPSON

Tangshan Jingyuan

RTC

DS3232(Maxim)

BL8025T(Belling)

FM38025T(Fudan Micro)

Reset

MAX823(Maxim)

SGM706(SGMICRO)

Power

Silergy, UMW

Ethernet

DP83848(TI)

ZX5201(ZTE Microelectronics)

N/A

FRAM

FM24CL64B-GTR(Cypress)

MB85RC64TAPNF(Fujitsu)

N/A

Signal Chain

ADI/TI

N/A

II. Power Grid Distribution and Consumption Devices (MS-RTOS)

Smart Meters

(Solution details omitted)

Smart Switches

For small intelligent devices like smart switches and smart meters, it is generally necessary to first contact power grid functional organizations or provincial grids for discussions.

Advantages include: basic applications can be shipped with the core module, defining communication protocols, metering data, and other common components. It provides dynamic loading, security isolation, and other functions, allowing other manufacturers to develop based on a unified platform.

Currently, developing smart meters with China Southern Power Grid and smart switches with Zixin Microelectronics.

FTU/DTU

As intelligent devices now require software app-ification, these devices have become part of the Linux ecosystem. Therefore, a Linux + MS-RTOS solution can be chosen; advantages are similar to smart switches. Currently, related development is underway with Zixin Microelectronics.

Untapped areas: Carrier modules (HPLC), power grid low-power wireless modules, etc.

These devices have high power consumption requirements and do not involve secondary development. It is necessary to communicate with specific customers to identify innovation points, such as adding functions or integrating multiple modules onto a single hardware module.

III. Power Generation Devices (SylixOS)

DCS/PLC

SylixOS is primarily used in DCS controllers. The specific solution is as follows:

It has been deployed at Huaneng Group, and the instrumentation and control system of SNPTC Automation is currently under development, expected to be put into operation next year.

Furthermore, in this industry, it's not only applicable to thermal power plants but also has opportunities in hydropower and wind power. It is even more suitable for the nuclear power sector (related R&D work has already been initiated with China General Nuclear Power Corporation and CNNC Control).

For high-safety-level application scenarios in the energy industry, we can provide a safety-certified operating system, developed strictly in accordance with EN50128/IEC61508 SIL3 standards, with clear design and implementation for safety requirements. We also provide software V&V (Verification & Validation) support benchmarked against IEEE-1012, offering differentiated V&V support for software of various safety integrity levels.

The kernel interfaces of the safety-certified version and non-safety-certified version operating systems are unified, helping customers achieve software platform consistency.

Notes: Communication regarding related devices in the distribution and consumption sector can be conducted with power grid companies or provincial power grid companies, such as digital research institutes, provincial grids, etc. (e.g., smart switches, smart meters, FTU/DTU, charging piles). Other manufacturers can be sought based on device types.