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• Time of issue:2023-02-20
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(Summary description)

August 11 ~ 12, in the Association of Electrical Branch 2022 annual meeting and the third session of the Council for the General Assembly held in Hefei, the meeting was held jointly with a number of units, aimed at discussing the direction of development of the electrical industry and the next year's work, to discuss the current hot spots in the electrical industry, difficult issues, to promote the technical development and progress of the electrical industry.

Conference highlights

1、Authority - experts: the full line-up of industry authoritative experts attended.

2、Advanced-Products: Industry leading enterprises' products will be displayed.

3、Spotlight - hotspot: focus on industry hot topics, in-depth interpretation of the industry's cutting-edge technology.

4、Trends - leading: insight into the future development trend, leading the "14th Five-Year Plan" construction trend.

5、Platform - Empowerment: Play the value of the platform, linking multiple resources, and empowering the industry.

6、Recognition-typical: commending the excellent cooperation units in the second council.

Changshu Switch, as a strategic co-organizer, supported this event and brought a new generation of products to this meeting.











The "Double Carbon" Goal and New Electricity System

In September 2020, General Secretary Xi Jinping proposed the goal of "striving to peak CO2 emissions by 2030 and achieving carbon neutrality by 2060".

In March 2021, at the ninth meeting of the Central Finance and Economics Commission, General Secretary Xi Jinping made further arrangements for achieving peak carbon and carbon neutrality, and proposed the construction of a new power system with new energy as the mainstay.

New type of power distribution system - active power distribution system

The active power distribution system features large-scale photovoltaic power generation, large-scale energy storage devices and charging piles, a high proportion of low-voltage DC, and control power electronics.

Distributed energy sources and energy storage devices, etc. have a substantial impact on the tide and short-circuit current of the distribution network, and present new challenges to the protection control and operation management of the distribution network.

It includes problems in power access management, dispatch management of distributed energy, load regulation management, voltage control, power control, relay protection, short-circuit current limitation, fault location and isolation.

The report introduces a variety of product solutions for active power distribution systems from three aspects: new requirements on the power side, new requirements on the distribution side protection, and new requirements on integrated management.

For the new requirements of the power supply side, the report introduces targeted solutions such as: special circuit breakers for PV grid connection, automatic simultaneous closing, automatic double power conversion with bypass, equipment non-stop high-speed conversion, and intelligent load regulation and control.

For the new requirements of distribution side protection, such as: directional area interlock protection, double parameter setting, B-type residual current protection, DC protection for DC distribution systems are introduced.

For the new requirements of comprehensive management, Changshu switch products have the following features: perfect management functions, simple deployment and high measurement accuracy.

In this forum, Changshu Switch also won the title of excellent partner of the 2nd Council of China Survey and Design Association Electrical Branch. Changshu Switch will also keep forging ahead, continue to innovate and help the development of electrical business under the double carbon economy together with the majority of electrical people!